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Fulltext Morphological descriptions of second and third instar larvae of Hypopygiopsis violacea Macquart (Diptera:Calliphoridae), a forensically important fly in Malaysia

Ahmad Firdaus MS, Marwi MA, Syamsa RA, Zuha RM, Ikhwan Z, Omar B

Trop Biomed, 2010 Apr;27(1):134-7.
PMID: 20562824

Hypopygiopsis violacea, a species of fly of forensic importance, was recovered from a corpse and described for the first time. The morphological structures of the second and third instar larvae of four specimens were examined using light microscope. Observations were focused on three main morphological characters: cephalopharyngeal skeleton, anterior and posterior spiracles. Cephalopharyngeal skeleton of second instar larva is darkly pigmented and without accessory sclerite below the mouth hook. The anterior spiracles of second and third instar larvae have 8-9 papillae each, arranged in a single row. The posterior spiracle of second instar larva has two spiracular slits with no thickening of peritreme. This differentiates it from the third instar, whereby the latter has three slits for each posterior spiracle. Cephalopharyngeal skeleton of third instar larva is heavily pigmented. An accessory sclerite is found below the hook part of third instar larva but is absent in second instar. Peritreme of the posterior spiracle of third instar larva is thick almost complete encircling a button. The intersegmental spines of the cuticular surface are dome-shaped and unicuspid. Third instar larva of this species is large with size approximately 15 mm long. These findings provide important identification features of immature stages of Hy. violacea which could be useful in forensic entomology.

Matched MeSH terms: Diptera/classification*
Two New Species and Seven New Records of Horse Fly (Diptera: Tabanidae) From Malaysia, Including a Description of New Species and Modified Keys

Al-Talafha HA, Yaakop S, Idris AB

J Med Entomol, 2018 01 10;55(1):112-121.
PMID: 29040652 DOI: 10.1093/jme/tjx172

Horse flies (Diptera: Tabanidae) are of medical and veterinary importance, as their blood-sucking feeding habit enables them to transmit several disease-causing agents. In Malaysia, the family Tabanidae consists of 120 species belonging to eight genera. The current study describes two new species (Chrysops idlani sp. nov. and Tabanus ekor sp. nov.) and presents new records for seven species: Tabanus fontinalisSchuurmans Stekhoven, 1926; Tabanus fuscifronsSchuurmans Stekhoven, 1926, Tabanus latifasciesSchuurmans Stekhoven, 1926, Tabanus megalops (Walker, 1854), Tabanus rhinargusPhilip, 1962, Tabanus salvazai (Surcouf, 1922), and Tabanus tristisWulp, 1881. Complete descriptions and illustrations are provided for the new species, and species variations for the new records are discussed. Male Tabanus latifasciesSchuurmans Stekhoven, 1926 and Tabanus perakiensis Ricardo, 1911 are thoroughly described herein.

Matched MeSH terms: Diptera/classification*
Fulltext A preliminary study on the decomposition and dipteran associated with exposed carcasses in an oil palm plantation in Bandar Baharu, Kedah, Malaysia

Azwandi A, Abu Hassan A

Trop Biomed, 2009 Apr;26(1):1-10.
PMID: 19696721 MyJurnal

This study was carried out in an oil palm plantation in Bandar Baharu, Kedah using monkey carcasses and focuses in documenting the decomposition and dipteran colonization sequences in 50 days. This is the first study of Diptera associated with the exploitation of carcasses conducted in the north of peninsular Malaysia during the dry and wet seasons thereat. During the process of decomposition in both seasons, five phases of decay were recognized namely fresh, bloated, active decay, advance decay and dry remain. In this decomposition study, biomass loss of carcass occurred rapidly during the fresh to active decay stage due to the colonization and feeding activity of the Diptera larvae. The duration of the fresh and bloated stages of decay were the same in wet and dry seasons but later stages of decay were markedly shorter during the wet season. Twenty one species of adult Diptera were identified colonizing carcasses in the study period. Among the flies from the family Calliphoridae, Chrysomya megacephala Fabricius and Chrysomya nigripes Aubertin were recognized as the earliest arrivals on the first day of exposure. Adult Ch. nigripes was abundant for approximately two weeks after placement of the carcasses. By comparing the percentages of adults collected during the study period, the calliphorids abundance in percentages in wet season was 50.83%, but in dry season, the abundance was only about 35.2%. In contrast, the percentage of Sphaeroceridae in wet season was only 3.33%, but in the dry season, the abundance was 20.8%. Dipteran in family Phoridae, Piophilidae, Sepsidae, Drosophilidae and Dolichopodidae colonized the carcasses for a long period of time and were categorized as long term colonizers.

Matched MeSH terms: Diptera/classification
[Macrostylophora kinabaluae n. sp. (Insecta: Siphonaptera: Ceratophyllidae), a new flea from Sabah (Borneo, Eastern Malaysia)]

Beaucournu JC, Wells K

Parasite, 2005 Sep;12(3):237-40.
PMID: 16218211

This species, known only by a single male, is described from Mount Kinabalu and thus is recorded from the same area as Macrostylophora borneensis (Jordan, 1926), teste Traub (1972). It is distinguished from its congeneric and characterized by the absence of eriged setae on the thorax and first abdominal tergits, as well as by the shape of terminal segments and the phallosom. Macrostylophora kinabaluae was found to parasitize the Sciurid rodent Callosciurus prevostii that is widespread throughout most areas in the Malaysian subregion.

Matched MeSH terms: Diptera/classification*
World review of the genus Strongylophthalmyia Heller (Diptera: Strongylophthalmyiidae). Part I: Introduction, morphology, species groups, and review of the Strongylophthalmyia punctata subgroup

Evenhuis NL

Zootaxa, 2016 Nov 10;4189(2):zootaxa.4189.2.1.
PMID: 27988730 DOI: 10.11646/zootaxa.4189.2.1

The Strongylophthalmyia punctata subgroup, comprising 24 species with armored fore femora, and restricted primarily to SE Asia, is reviewed. Eighteen new species, S. albisternum, n. sp. (Thailand), S. borneensis, n. sp. (Borneo), S. caestus, n. sp. (Philippines), S. darlingi, n. sp. (Sumatra), S. federeri, n. sp. (Philippines), S. hauseri, n. sp. (Thailand, Vietnam), S. indochinensis, n. sp. (Cambodia, Thailand, Vietnam), S. inundans, n. sp. (Philippines), S. laosensis, n. sp. (Laos), S. lowi, n. sp. (Peninsular Malaysia), S. malayensis, n. sp. (Peninsular Malaysia), S. nigripalpis, n. sp. (Peninsular Malaysia), S. oxybeles, n. sp. (Sumatra), S. pappi, n. sp. (Thailand), S. phillindablank, n. sp. (China), S. sichuanica, n. sp. (China), S. sumatrana, n. sp. (Sumatra), and S. thailandica, n. sp. (Thailand) are described and illustrated, S. microstyla Shatalkin and S. punctata Hennig are redescribed based on examination of the holotypes, and a key to species of the subgroup is presented. A general taxonomic overview of the genus Strongylophthalmyia is given with discussion of and keys to proposed species groups.

Matched MeSH terms: Diptera/classification*
Review of the Oriental and Palaearctic bee fly genus Euchariomyia Bigot (Diptera: Bombyliidae: Bombyliinae)

Evenhuis NL, Gang Y

Zootaxa, 2016 Dec 06;4205(3):zootaxa.4205.3.2.
PMID: 27988574 DOI: 10.11646/zootaxa.4205.3.2

The bee fly genus Euchariomyia Bigot is reviewed and new records from the Oriental Region are given. Five names (for four species-level taxa) have been associated with species in the genus. Examinations of types, as well as homotypic and topotypic specimens, shows all five names to belong to a highly variable single species, Euchariomyia dives Bigot. The following species are here shown to be the same as Euchariomyia dives Bigot: Bombylius pulchellus Wulp, 1880, Bombylius scintillans Brunetti, 1909, and Bombylius brunettii Senior-White, 1922, n. syn. The genus is known primarily from the southern and eastern Oriental Region and ranges into the Palaearctic in eastern China. We extend the distribution of the genus with new records in the southeastern Oriental Region [Indonesia (Sumatra), Laos, Peninsular Malaysia, and Vietnam].

Matched MeSH terms: Diptera/classification*
Old World screwworm fly, Chrysomya bezziana, occurs as two geographical races

Hall MJ, Edge W, Testa JM, Adams ZJ, Ready PD

Med Vet Entomol, 2001 Dec;15(4):393-402.
PMID: 11776458

A morphological and molecular analysis was undertaken with the objective of identifying markers for geographical populations of Old World screwworm flies, Chrysomya bezziana Villeneuve (Diptera: Calliphoridae). The morphological analysis involved 192 adult flies from 14 countries, and the molecular analysis involved 45 larvae or adults from 14 populations in 11 countries. Principal components and cluster analysis of 10 morphological characters indicated that flies from Papua New Guinea (PNG) were a distinct group and most similar to flies from nearby Asian islands (Java, Sabah). There was poor resolution of other geographical regions, but some support for clustering of flies from Africa or India. Cladistic analysis of mitochondrial DNA sequences gave strong support for recognizing two races of Old World screwworm, one from sub-Saharan Africa and the other from the Gulf region and Asia. This latter race could be further divided into two lineages, i.e. one from mainland Asia (from Iraq to the Malay Peninsula) and the other from two islands of PNG.

Matched MeSH terms: Diptera/classification*
Chrysomya bezziana (Diptera: Calliphoridae) infestation: case report of three dogs in Malaysia treated with spinosad/milbemycin

Han HS, Sharma R, Jeffery J, Noli C

Vet Dermatol, 2017 Apr;28(2):239-e62.
PMID: 27918123 DOI: 10.1111/vde.12403

BACKGROUND: Infestation of wounds with the larvae of Callophorid flies is relatively common in countries where these parasites are found. The most common species associated with infections in Southeast Asia is Chrysomya bezziana (Ch. bezziana), the Old World screw worm. Treatment consists of either subcutaneous injection of ivermectin or oral administration of nitenpyram combined with aggressive tissue debridement under general anaesthesia.
OBJECTIVES: To describe the treatment of cutaneous myiasis in three dogs caused by the larvae of Ch. bezziana in Malaysia and their treatment with spinosad plus milbemycin.
RESULTS: In all dogs, a single oral dose of spinosad plus milbemycin at the recommended dosage of 31-62 mg/kg and 0.5-1.0 mg/kg, respectively, was able to kill all larvae within 8 h. Most dead larvae fell off the host and those remaining on the host were dead and easily removed with simple saline flushing and gentle debridement. Neither general anaesthesia nor aggressive mechanical debridement were needed in any patient.
CONCLUSIONS AND CLINICAL IMPORTANCE: Oral spinosad plus milbemycin is a safe, licensed and effective treatment at the recommended dose for the rapid elimination of Ch. bezziana myiasis, with no need for sedation or anaesthesia.

Matched MeSH terms: Diptera/classification*
Fulltext New locality record of Isomyia paurogonita Fang & Fan, 1986 (Diptera: Calliphoridae) from Peninsular Malaysia and Borneo

Heo CC, Aisha S, Kurahashi H, Omar B

Trop Biomed, 2013 Mar;30(1):159-63.
PMID: 23665723 MyJurnal

Isomyia paurogonita Fang & Fan, 1986 (Diptera: Calliphoridae), a rare species of the subfamily Rhiniinae (tribe Cosminini) was recorded for the first time in Malaysia. We collected one male and two females during a field trip conducted at Genting Highland, Pahang, peninsular Malaysia in May 2011. A 3-day old cow liver was offered as attractant and dipterans collected were transferred to the laboratory for specimens processing and identification. The adults of I. paurogonita were attracted to the odour and then captured by using a sweep net. Isomyia paurogonita was also recorded from two other localities in Peninsular and Malaysian Borneo, namely Gombak Utara, Selangor and Sibu, Sarawak.

Matched MeSH terms: Diptera/classification*
Fulltext A preliminary study of insect succession on a pig carcass in a palm oil plantation in Malaysia

Heo CC, Mohamad AM, Ahmad Firdaus MS, Jeffery J, Baharudin O

Trop Biomed, 2007 Dec;24(2):23-7.
PMID: 18209704 MyJurnal

This preliminary study was carried out in a palm oil plantation in Tanjung Sepat, Selangor in 17 May 2007 by using pig (Sus scrofa) as a carcass model in forensic entomological research. A 3 month old pig (8.5 kg) that died of pneumonio was placed in the field to observe the decomposition stages and the fauna succession of forensically important flies. Observation was made for two weeks; two visits per day and all climatological data were recorded. The first visitor to the pig carcass was a muscid fly, seen within a minute, and followed by ants and spiders. Within half an hour, calliphorid flies came over. On the second day (fresh), few calliphorid and sarcophagid flies were found on the carcass. Two different species of moths were trapped in the hanging net. The first larva mass occurred on the third day (bloated) around the mouthpart, with some L1 and L2 found in the eyes. Reduvid bugs and Staphylinidae beetles were recovered on the fourth day (active decay), and new maggot masses occurred in the eyes and anus. L3 larvae could be found beneath the pig carcass on the fourth day. On the fifth day (active decay), new maggot masses were found on neck, thorax, and hind legs. Advance decay occurred on the sixth day with abundant maggots covering all over the body. The main adult fly population was Chrysomya megacephala (day 2 to day 6), but the larvae population was mainly those of Chrysomya rufifacies (day 4 to day 14). The dry stage began on the eighth day. Hermetia illucens adult was caught on day-13, and a larvae mass of Chrysomya rufifacies was seen burrowing under the soil. This forensic entomological research using pig carcass model was the first record in this country.

Matched MeSH terms: Diptera/classification
Fulltext A new record of Bengalia emarginata Malloch, 1927 (Diptera: Calliphoridae) from Malaysia

Heo CC, Kurahashi H, Mohamad AM, Jeffrey J, Dhang CC, Zuha RM, et al.

Trop Biomed, 2008 Dec;25(3):262-3.
PMID: 19287369

During a forensic entomological study conducted at an oil palm plantation in Tanjung Sepat, Kuala Langat, Selangor, a Bengalia emarginata Malloch, 1927 (Diptera: Calliphoridae: Calliphorinae: Bengalini) was collected for the first time. Two adults were collected nearby the pig carcass by the first author and identified by the second. Prior to this finding, nine species of Bengalia were recorded from peninsular Malaysia or Borneo. Male of B. emarginata are different from Bengalia varicolor Fabricious by the following characters: Sternite 5 projection rounded with small identation and mid tibia double-fringed in ventral surface.

Matched MeSH terms: Diptera/classification*
Fulltext Insect succession on a decomposing piglet carcass placed in a man-made freshwater pond in Malaysia

Heo CC, Mohamad AM, John J, Baharudin O

Trop Biomed, 2008 Apr;25(1):23-9.
PMID: 18600201

This entomological study was conducted in a man-made freshwater pond in a palm oil plantation in Tanjung Sepat, Selangor from 23 July 2007 by using pig (Sus scrofa) as a carcass model. A 1.5 month old piglet (5 kg), which died of asphyxia after being accidentally crushed by its mother, was thrown into a pond. Observation was made for ten days; one visit per day and climatological data were recorded. On the first two days, the piglet carcass sunk to the bottom of the pond. The carcass floated to the surface on the third day but no fly activities were seen. The blow fly, Chrysomya megacephala and Chrysomya rufifacies started to oviposit on the fourth day. Other than adult flies, a spider (Arachnida) was also observed on the carcass. Bubbles accumulated at the mouthpart, and the abdomen was greenish black. A lot of blow fly eggs were seen on the body surface on the fifth day (floating decay), along with first and second instars C. megacephala crawling under the piglet's skin. On the sixth day, adult blow fly, C. megacephala,and C. rufifacies,and muscid flies, Ophyra spinigera and Musca domestica were observed on to the carcass. High numbers of first and second instars of flies were observed wandering around the body surface with C. megacephala larvae being the predominant species. Two prominent maggot masses occurred on seventh and eighth days. Bloated deterioration stage began on day eighth exposing rib bones, humerus bones and intestines. Carcass was partially sinking and the maggot masses were at the water level. On day ninth, the carcass was partially sinking and three maggot masses were observed on the exposed surface. There were very few adult flies, including a scarab beetle was sighted on the carcass at this stage. The carcass along with the maggots sunk on day tenth, leaving an oily layer on the water surface.

Matched MeSH terms: Diptera/classification
A preliminary key to the common calliphorid flies of peninsular Malaysia (Insecta: Diptera)

Inder Singh K, Kurahashi H, Kano R

Bull. Tokyo Med. Dent. Univ., 1979 Mar;26(1):5-24.
PMID: 284861

A key to the common Calliphorid flies of Peninsular Malaysia is presented. Illustrations of the genitalia of some rare species, list of new localities, altitudes and other ecological data are also presented. The following species were recorded for the first time from Peninsular Malaysia; Catapicephala sinica, C. kurahashii, Taninanina javanica, Hemipyrellia tagaliana, Lucilia sinensis, Blaesoxipha kasterni, Boettcherisca javanica, Parasarcophaga misera, P. orchidea, P. albicephs, Sarcosolomonia crinita, Thyrsocnema bornensis, Sarcorohdendorfia antilope and Lioproctia pattoni.

Matched MeSH terms: Diptera/classification*
Fulltext Molecular identification of Malaysian Chrysomya megacephala (Fabricius) and Chrysomya rufifacies (Macquart) using life stage specific mitochondrial DNA

Kavitha R, Tan TC, Lee HL, Nazni WA, Sofian AM

Trop Biomed, 2013 Jun;30(2):211-9.
PMID: 23959486 MyJurnal

DNA identification of blow fly species can be a very useful tool in forensic entomology. One of the potential benefits that mitochondrial DNA (mtDNA) has offered in the field of forensic entomology is species determination. Conventional identification methods have limitations for sibling and closely related species of blow fly and stage and quality of the specimen used. This could be overcome by DNA-based identification methods using mitochondrial DNA which does not demand intact or undamaged specimens. Mitochondrial DNA is usually isolated from whole blow fly and legs. Alternate sources for mitochondrial DNA isolation namely, egg, larva, puparium and empty puparium were explored in this study. The sequence of DNA obtained for each sample for every life cycle stage was 100% identical for a particular species, indicating that the egg, 1st instar, 2nd instar, 3rd instar, pupa, empty puparium and adult from the same species and obtained from same generation will exhibit similar DNA sequences. The present study also highlighted the usefulness of collecting all life cycle stages of blow fly during crime scene investigation with proper preservation and subsequent molecular analysis. Molecular identification provides a strong basis for species identification and will prove an invaluable contribution to forensic entomology as an investigative tool in Malaysia.

Matched MeSH terms: Diptera/classification*
Fulltext DNA typing of Calliphorids collected from human corpses in Malaysia

Kavitha R, Tan TC, Lee HL, Nazni WA, Sofian-Azirun M

Trop Biomed, 2013 Mar;30(1):119-24.
PMID: 23665717 MyJurnal

Estimation of post-mortem interval (PMI) is crucial for time of death determination. The advent of DNA-based identification techniques forensic entomology saw the beginning of a proliferation of molecular studies into forensically important Calliphoridae (Diptera). The use of DNA to characterise morphologically indistinguishable immature calliphorids was recognised as a valuable molecular tool with enormous practical utility. The local entomofauna in most cases is important for the examination of entomological evidences. The survey of the local entomofauna has become a fundamental first step in forensic entomological studies, because different geographical distributions, seasonal and environmental factors may influence the decomposition process and the occurrence of different insect species on corpses. In this study, calliphorids were collected from 13 human corpses recovered from indoors, outdoors and aquatic conditions during the post-mortem examination by pathologists from the government hospitals in Malaysia. Only two species, Chrysomya megacephala and Chrysomya rufifacies were recovered from human corpses. DNA sequencing was performed to study the mitochondrial encoded COI gene and to evaluate the suitability of the 1300 base pairs of COI fragments for identification of blow fly species collected from real crime scene. The COI gene from blow fly specimens were sequenced and deposited in GenBank to expand local databases. The sequenced COI gene was useful in identifying calliphorids retrieved from human corpses.

Matched MeSH terms: Diptera/classification*
Fulltext A report on the pupae of Desmometopa sp. (Diptera: Milichiidae) recovered from a human corpse in Malaysia

Kumara TK, Abu Hassan A, Che Salmah MR, Bhupinder S

Trop Biomed, 2010 Apr;27(1):131-3.
PMID: 20562823

The pupae of Desmometopa sp. (Diptera: Milichiidae) were collected from a human corpse found indoor in active decay stage together with the larvae of Sarcophagidae, Synthesiomyia nudiseta (Wulp), Chrysomya megacephala (Fabricius) and Chrysomya rufifacies (Macquart). This research note is the first report of the Desmometopa sp. recovered from a human corpse in Malaysia.

Matched MeSH terms: Diptera/classification*
Fulltext Occurrence of oriental flies associated with indoor and outdoor human remains in the tropical climate of north Malaysia

Kumara TK, Disney RH, Abu Hassan A, Flores M, Hwa TS, Mohamed Z, et al.

J Vector Ecol, 2012 Jun;37(1):62-8.
PMID: 22548537 DOI: 10.1111/j.1948-7134.2012.00200.x

Flies attracted to human remains during death investigations were surveyed in north Peninsular Malaysia. Six families, eight genera, and 16 species were identified from human remains, with the greatest fly diversity occurring on remains recovered indoors. The total relative frequency of species was led by Chrysomya megacephala (Fabricius, 1794) (46%), followed by Chrysomya rufifacies (Macquart, 1842) (22%), Sarcophaga (Liopygia) ruficornis (Fabricius, 1974) (5%), Sarcophaga spp. (4%), Synthesiomyia nudiseta Wulp, 1883 (6%), Megaselia spp. (3%), Megaselia scalaris (Loew, 1866), (2%), Megaselia spiracularis Schmitz, 1938 (2%), and Chrysomya villeneuvi Patton, 1922 (2%). Hemipyrellia tagaliana (Bigot, 1877), Desmometopa sp., Megaselia curtineura (Brues, 1909), Hemipyrellia ligurriens Wiedemann 1830, Ophyra sp., Sarcophaga princeps Wiedemann 1830, Piophila casei (Linnaeus, 1758), and unidentified pupae each represented 1%, respectively.

Matched MeSH terms: Diptera/classification*
DNA Barcoding of Simulium asakoae (Diptera: Simuliidae) From Northern Thailand

Low VL, Srisuka W, Saeung A, Tan TK, Ya'cob Z, Yeong YS, et al.

J Med Entomol, 2020 09 07;57(5):1675-1678.
PMID: 32333022 DOI: 10.1093/jme/tjaa081

Previous studies suggested the presence of species complex in the so-called Simulium asakoae Takaoka & Davies (Diptera: Simuliidae) in Thailand due to its high morphological variability and genetic divergence. To investigate whether the true S. asakoae is present in Thailand, we performed a detailed morphological identification of S. asakoae and compared its DNA barcodes with the morphospecies S. asakoae from Myanmar and the typical S. asakoae from Malaysia. Phylogenetic analysis revealed the Thai materials analyzed in this study were indeed genetically similar with those from Myanmar and Malaysia, though genetic distances 0-2.27% were observed. We tentatively regard this divergence as intraspecific variation, and the automatic barcode gap discovery analysis further supports them as a single species.

Matched MeSH terms: Diptera/classification*
Species richness of scavenger insects on different carcass types

Mashaly AM, Al-Ajmi RA, Rady A, Al-Musawi Z, Farrukh A

Trop Biomed, 2019 Sep 01;36(3):630-639.
PMID: 33597485

The type and amount of resources available significantly influences the structure and dynamics of food webs. In this study, we analyzed differences in species richness of scavengers based on carcass type in Riyadh, Saudi Arabia. We collected insects from experimental carcasses of three different types, domestic dogs (Canidae, Canis lupus familiaris), Hijazi goats (Bovidae, Capra aegagrus hircus), and camels (Camelidae, Camelus dromedarius). Data collection was conducted during the decay stage in June, 2016. We used mitochondrial cytochrome c oxidase subunit I (mtCOI) barcodes as a marker for the molecular identification of the scavenger insects. The results showed that there were more insects on the camels and goats than the dogs. In total, seven species were found on all carrions. Six species were found on the camels and goats, but only five were found on the dog. Musca domestica was the most collected species of flies whereas, Necrobia rufipes was the most collected species of beetles. Overall, this study showed that carrion type had an effect on the type and number of insects attracted to the carrions. Thus, one of the significant factors that influence the associated scavenger assemblage is a carcass type.

Matched MeSH terms: Diptera/classification*
New Indo-Pacific species of Dasyrhicnoessa Hendel, 1934 and Pseudorhicnoessa Malloch, 1914 (Diptera: Canacidae: Tethininae)

Munari L

Zootaxa, 2014;3784:281-93.
PMID: 24872057 DOI: 10.11646/zootaxa.3784.3.8

Three new species of Dasyrhicnoessa Hendel, 1934 and one of Pseudorhicnoessa Malloch, 1914 from the Indo-Pacific area are described and the male terminalia illustrated. Among these new species, Dasyrhicnoessa paradoxa sp. nov. and Pseudorhicnoessa longicerca sp. nov. are especially noteworthy for the morphological peculiarities of the male terminalia.

Matched MeSH terms: Diptera/classification*

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