Neodiogmites Carrera, 1949

Alvim, Edgar, Ale-Rocha, Rosaly & Bravo, Freddy, 2014, Taxonomic revision of Neodiogmites Carrera, 1949 (Diptera, Asilidae) and description of two new species, Zootaxa 3861 (2), pp. 101-126 : 102

Neodiogmites Carrera, 1949

Neodiogmites Carrera, 1949:85 , Figs. 21, 22 , 44 , 73, 113, 144, 151; type species: Dasypogon melanogaster Wiedemann, 1821 (original designation). Carrera & Papavero, 1962:46 (key, records); Martin & Papavero, 1970:28 (catalog); Papavero, 1973a: 240 (citation); 1973b: 278 (citation); 2009:74 (catalog); Artigas & Papavero, 1988:204, 212 (review, key); Papavero et. al., 2009:112 (citation, key); Geller-Grimm et al., 2011 (catalog online).

Lastauroides Carrera, 1949:94 ; type species: Lastauroides alexanderi Carrera, 1949 (original designation). Carrera & Papavero, 1962: 46 (key, records); Martin & Papavero, 1970: 28 (catalog); Papavero, 1973a: 240 (citation); 1973b: 278 (citation); Artigas & Papavero, 1988:204 (key, as synonym of Neodiogmites ).

Lastaurax Carrera, 1949:110 , Figs. 28 , 51 , 83, 108; type species: Lastaurax lanei Carrera, 1949 (original designation). Hull, 1962: 240, Figs. 1071, 1080; Martin & Papavero, 1970: 28 (catalog); Artigas & Papavero, 1988: 204 (key, as synonym of Neodiogmites ).

Diagnosis. face flat or pronounced; usually hairy flies; anepisternum and katepisternum with relatively long dense setae; dorsocentral row of setae complete, beginning before posterior margin of postpronotum, with well developed setae, or incomplete, starting from posterior margin of postpronotum, setae becoming longer near scutellum; at least tergites 2–4 with long, thin setae laterally and posteriorly, female with spines on tergite 10; males with hypandrium free, not fused with epandrium.

Redescription. Measurements: body 17–37 mm; wings: 12–28 mm. Head: face flat or pronounced; mystacal setae long; frons with setae laterally; ocellar tubercle with several setae. Thorax: dorsocentral series either complete with setae before posterior margin of postpronotal lobe, or incomplete starting from posterior margin of postpronotal lobe, setae longer near scutellum; scutellum with pair of long setae, sparse thin setae sometimes between longer setae. Legs: sub-cylindrical; apical spur of fore tibia short, thick at base and very curved; claws sharp; pulvilli almost as long as claws; empodium shorter than pulvillus. Abdomen: wider basally, segments 2–4 with thin setae on posterior margin in both sexes. Females with last segment bright black. Male genitalia rotated about 90°. Terminalia: Male: cercus shorter than gonocoxite; hypandrium free, not fused with epandrium. Female: with ten spines on each acanthophorite; sternite VIII with central and mediolateral membranous areas, posterior margin with medial invagination forming two valves.

Geographic distribution. Argentina, Brazil, Paraguay (new record)

Remarks. The species of Neodiogmites can be easily clustered in three well distinct groups of species. Those groups coincide with the classification proposed by Carrera (1949), in which Lastauroides and Lastaurax were separated from Neodiogmites . However, we have retained the current classification of the genus pending future studies.

Figures

FIGURES 21 – 26. Neodiogmites melanogaster (Wiedemann). Male terminalia: 21, dorsal view; 22, ventral view; 23, lateral view; 24, internal view of gonocoxite; 25, dorsal view of phallus; 26, lateral view of phallus. Abbreviation: Ejac Apod—Ejaculatory apodeme. Scale: 1 mm.

FIGURES 43 – 45. Neodiogmites papaveroi sp. nov. Female terminalia: 43, sternite VIII, ventral view; 44, tergite VIII, dorsal view; 45, spermathecae. Scale: 1 mm.

FIGURES 27 – 29. Neodiogmite (Carrera). Female terminalia: 27, sternite VIII, ventral view; 28, tergite VIII, dorsal view; 29, spermathecae. Scale: 1 mm.

FIGURES 46 – 51. Neodiogmites papaveroi sp. nov. Male terminalia: 46, dorsal view; 47, ventral view; 48, lateral view; 49, internal view of gonocoxite; 50, dorsal view of phallus; 51, lateral view of phallus. Scale: 1 mm.