Stylogaster Macquart Research Articles

Stylogaster eggs on blow flies attracted to millipede defence secretions in Tanzania, with a stab at summarising their biology (Diptera: Conopidae & Calliphoridae).

The genus Stylogaster Macquart (Diptera: Conopidae) is sister to the remainder of the Conopidae. While all other Conopidae are endoparasitoids of aculeate Hymenoptera, species of Stylogaster appear to be endoparasitoids of ‘orthopteroids’, as the only confirmed rearing records are from crickets and cockroaches. Many calyptrate flies have been observed with Stylogaster eggs attached, but since no Stylogaster have been reared from any dipterans, it is still unknown if these flies are hosts, results of accidental oviposition or carry the eggs to the actual hosts. In this study, we report our findings of Stylogaster eggs on blow flies (Calliphoridae) attracted to millipede defence secretions in Tanzania. Out of seven different species collected and a total of 301 specimens, only flies of the genus Tricyclea Wulp had Stylogaster eggs attached. Out of 133 Tricyclea collected, 32 (24%) had Stylogaster eggs attached and, with one exception, all eggs were attached to the abdomen. The lifecycle of Stylogaster is summarised and discussed with a particular focus on dipteran egg-carriers.

Ethiopian muscids (Diptera, Muscidae) egg-carriers of Stylogaster Macquart (Diptera, Conopidae).

We here report for the first time on the presence of three species of the conopid genus Stylogaster Macquart (Diptera, Conopidae) in Ethiopia, viz. S. nitens Brunetti, S. westwoodi Smith and Stylogaster sp.. We further screened 908 muscid flies (Diptera, Muscidae) for the presence of impaled eggs of Stylogaster and recorded eggs on 89 individuals (9.8%). Eggs were impaled on eight species, viz. Limnophora translucida Stein, Musca lusoria Wiedemann, Musca splendens Pont, Neomyia chrysopyga (Emden), Pseudohelina nigritarsis (Jaennicke), Stomoxys omega Newstead, Stomoxys taeniatus Bigot and Stomoxys varipes (Bezzi). The maximum number of eggs found on a single muscid was six. We illustrated the dissected eggs. L. translucida, M. lusoria, M. splendens, N. chrysopyga and S. varipes are reported as new muscid hosts species for Stylogaster.

FAMILY CONOPIDAE.

A catalogue of the Conopidae known from Colombia, with 16 species distributed in four genera, is presented. The richest group is Stylogaster Macquart. Geographic distributions are given for each species.

The first <i>Stylogaster</i> Macquart, 1835 (Diptera: Conopidae) fossil, from Oligo-Miocene Dominican amber, and some phylogenetic and biogeographic considerations

Abstract. Stylogaster Macquart, 1835 has been unknown in the fossil record until now, the only fossil conopid genus being Palaeomyopa Meulnier, 1912. Two Stylogaster specimens in amber from the American Museum of Natural History collection were studied and are described here. Both specimens, male and female, belong to a new species, S. grimaldii sp. nov., that is probably basal to at least the New World species with a short ocellar triangle. Photos and drawings of the new species are provided. The relationship with other Stylogaster species and ancient distributional patterns are briefly discussed.

Revision of Nearctic Stylogaster (Diptera: Conopidae)

AbstractNearctic Stylogaster Macquart (Diptera: Conopidae) species concepts are revised. We provide redescriptions of S. biannulata (Say) and S. neglecta Williston, description of S. beresfordinew species, an illustrated key to species, range maps, and ecological data. Stylogaster beresfordi ranges from southern Mexico to southern New Mexico, United States of America. DNA barcode data are provided with neighbour-joining and Bayesian analyses and relationships of the three species are discussed. We hypothesise that S. neglecta and S. beresfordi are sister taxa, while S. biannulata is in a different clade.

New Muscidae (Diptera) Hosts ofStylogasterMacquart (Diptera: Conopidae) from the Afrotropical Region

An extensive collection of Muscidae, amassed through recent expeditions to Burundi, the Democratic Republic of the Congo, Kenya, Namibia and South Africa, is now deposited at the National Museum, Bloemfontein, South Africa. Twenty-five specimens of 14 species impaled with the eggs of Stylogaster Macquart (Diptera: Conopidae) were discovered among this material. New records of Stylogaster eggs are presented for four muscid genera: Afromydaea Malloch, 1930, Coenosia Meigen, 1826, Hebecnema Schnabl, 1889 and Pseudohelina Vockeroth, 1972, and for eight species: Afromydaea debilis (Stein, 1913), Coenosia ruwenzorica (Emden, 1940), Hebecnema semiflava Stein, 1913, Limnophora obsignata (Rondani, 1866), Pseudohelina nigritarsis (Jaennicke, 1867), Pseudohelina phaeoxantha (Emden, 1951), Pyrellina abdominalis Zielke, 1971 and Pyrellina versatilis (Villeneuve, 1916). A brief discussion of these associations is presented.

Stylogaster Macquart, 1835 (Diptera: Conopidae) from Northeastern Brazil: new records and two new species

Stylogaster Macquart, 1835 (Diptera: Conopidae) from Northeastern Brazil: new records and two new species

Stylogaster Macquart, 1835 (Diptera: Conopidae) from Northeastern Brazil: new records and two new species

Of the 69 Neotropical species of Stylogaster, only one record was previously known from Northeastern Brazil (from Bahia state in 1985—S. brasilia Camras & Parrillo). Several specimens from this region housed at the MNRJ collection were studied, mostly from Bahia, Ceará and Pernambuco states. Two new records were obtained: S. macrura Lopes, 1938, previously known from São Paulo state (Southeastern Brazil), and S. souzai Monteiro, 1960, from Amapá and Pará (Northern Brazil). Descriptions of two new species, S. hugoi sp. nov. and S. planitarsis sp. nov. are presented, as well as that of the previously unknown female of S. souzai. Illustrations and geographic distribution of the species are also provided.

A taxonomic revision of Australian Conopidae (Insecta: Diptera)

A taxonomic revision of the Australian Conopidae is presented. Nineteen genera in four subfamilies are recognised. The Stylogasterinae are represented by the cosmopolitan genus Stylogaster Macquart and the Myopinae by Myopa Fabricius and Thecophora Rondani. A monotypic genus, Notoconops gen. nov., is described and placed in a new subfamily, Notoconopinae. The remaining fifteen Australian genera are assigned to the Conopinae. Australoconops Camras, Chrysidiomyia Kröber, Conops Linnaeus, Delkeskampomyia Kröber, Heteroconops Kröber, Microconops Kröber, Neoconops Kröber, Pleurocerina Macquart, Physocephala Schiner, Smartiomyia Kröber and Stenoconops Kröber are redescribed. Four new conopine genera are described: Atrichoparia; Camrasiconops; Setosiconops; and Tanyconops, with the following resultant new combinations: Atrichoparia curticornis (Kröber) (from Heteroconops); Camrasiconops ater (Camras) and Ca. rufofemoris (Camras) (from Microconops); and Setosiconops robustus (Kröber) (from Neoconops). Callosiconops Kröber and Paraconops Kröber are regarded as junior synonyms of Chrysidiomyia and Pleurocerina respectively with the following resultant new combinations: Chrysidiomyia hirsuta (Kröber), Pleurocerina aristalis (Camras), P. longicornis (Kröber), P. nigrifacies (Kröber), P. similis (Kröber), P. turneri (Camras). A total of 100 species of Australian Conopidae are now recognised. No new species of Myopinae or Stylogasterinae are described. Representative species only of Atrichoparia, Camrasiconops, Heteroconops and Microconops are described. All species of the other 12 genera are described or redescribed. These include the following 45 new species,: Australoconops aglaos, A. aurantius, A. balteus, A. breviplatus, A. brunneus, A. camrasi, A. cantrelli, A. elegans, A. fulvitarsus, A. furvus, A. nebrias, A. neuter, A. pallorivittus, A. phaeomeros, A. ruficrus, A. vespoides; Chrysidiomyia rugifrons, C. setosa; Conops aureolus, C. badius, C. chvalai, C. sparsus; Heteroconops carnarvonensis; Neoconops brevistylus, N. glaber; Notoconops alexanderi, Pleurocerina aquila, P. brevis, P. chrysopyga, P. lamellata, P. lutea,P. luteiceps, P. occidua, P. saxatilis, P. scutellata, P. vespiformis; Setosiconops epixanthus, Se. similis, Smartiomyia arena, Sm. cerina, Sm. danielsi, Sm. macalpinei; Tanyconops longicaudus, T. luteus, T. ocellatus. Australoconops ocellatus (de Meijere) comb. nov. is resurrected from synonymy with A. aurosus (Newman). Conops demeijerei Kröber is considered a junior synonym of C. seminiger de Meijere. A lectotype and paralectotypes are designated for Microconops fasciatus Kröber. Anatomical features used in descriptions are discussed and illustrated. Special attention has been given to the ultrastructure of spicules on female genital structures. These spicules show differences between genera and species. The high degree of endemism of the Australian fauna is discussed in relation to the world fauna and some preliminary thoughts on phylogenetic relationships are presented. A catalogue of the Australian Conopidae is included as an Appendix.

Diptera hosts of Stylogaster Macquart (Diptera, Conopidae) from Madagascar and South Africa

Diptera hosts of Stylogaster Macquart (Diptera, Conopidae) from Madagascar and South Africa. The genus Stylogaster Macquart (Diptera, Conopidae) is represented by 14 species in the Afrotropical region, five of them endemic to Madagascar and two recorded from South Africa, one of them endemic. Fifteen specimens of Muscidae, 14 from Madagascar and one from South Africa, belonging to 10 species, impaled with Stylogaster eggs were examined. Among them, three new muscid host species were found. The dissected eggs were all similar, suggesting the presence of the same species in both localities, what is not recorded until now. The available data on the dipteran Stylogaster eggs hosts in Africa is summarized. Color photos of the material examined are presented.

Revisão das espécies de Stylogaster Macquart do grupo stylata com descrição de uma espécie nova do Brasil (Diptera, Conopidae, Stylogasterinae)

The Brazilian species of Stylogaster Macquart, 1835 from the stylata group are studied and redescribed in detail: Stylogaster brasilia Camras & Parrillo, 1985, S. dispar Camras & Parrillo, 1985, S. longispina Camras & Parrillo, 1985, S. rafaeli Camras & Parrillo, 1996, S. souzai Monteiro, 1960, and S. stylata (Fabricius, 1805). A new species from Brazil, Rio de Janeiro - S. fluminensis sp. nov., is described and compared with S. stylosa Townsend, 1897, which is also redescribed based on type material. Diagnosis, keys for identification, geographic distributions and illustrations are also provided.

Myospila bekilyana (Séguy) (Diptera, Muscidae, Mydaeinae): redescription of male and female and description of terminalia

Myospila bekilyana (Seguy) (Diptera, Muscidae, Mydaeinae): redescription of male and female and description of terminalia. Myospila bekilyana Seguy (Diptera, Muscidae, Mydaeainae) is an endemic species from Madagascar. Since the original description, the species has been referred in literature only in catalogues. A material recently collected by the Madagascar Arthropod Biodiversity project, mostly deposited at the California Academy of Sciences collection enabled the exam of a large series of this species. Male and female are herein redescribed and the terminalia of both sexes are described and illustrated for the first time. The paper also records Myospila as a new host for Stylogaster Macquart (Diptera, Conopidae).

American two-winged flies of the genus Stylogaster Macquart

American two-winged flies of the genus Stylogaster Macquart