Atylobaccha Hull, 1949

Miranda, Gil Felipe Gonçalves, Marshall, Stephen A. & Skevington, Jeffrey H., 2014, Revision of the genus Pelecinobaccha Shannon, description of Relictanum gen. nov., and redescription of Atylobaccha flukiella (Curran, 1941) (Diptera: Syrphidae), Zootaxa 3819 (1), pp. 1-154: 7

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Atylobaccha Hull, 1949


Genus Atylobaccha Hull, 1949 

Atylobaccha Hull, 1949 a: 94  [type species Baccha flukiella Curran, 1941  (original designation)]. Proposed as a subgenus of Leucopodella  .

Diagnosis. Head. Face very narrow (around ¼ of head width) and entirely dark; tubercle very weak, face convex in profile ( Fig. 1View FIGURE 1 a). Frons narrow (between ¼ and ⅓ of head width). Antennal insertions confluent. Female ocellar triangle adjacent to lateral eye margin. Dorsal occiput with 1 row of pile (as in Fig. 45 bView FIGURE 45. a – e). Thorax. Scutum entirely dark with anterior row of longer pile, anterior row with shorter pile medially. Scutellum entirely dark. Anterior anepisternum pilose. Katatergite with short microtrichia giving the sclerite a ‘velvet’ appearance. Metaepisternum bare. Metasternum bare. Dorsal lobe of calypter with marginal pile shorter than ventral lobe pile. Metabasitarsomere dark but with apex pale. Wing. Alula width ~ 3 times as broad as c cell. Wing hyaline to light brown, entirely microtrichose. Abdomen. Abdomen petiolate with 2 nd segment very narrow and long (similar to Fig. 44View FIGURE 44 g); 3 rd and 4 th abdominal tergites with central pair of short pale vittae and sub-basal lateral pair of pale fasciate maculae. Genitalia. Female 7 th tergite rectangular and wide ( Fig. 1View FIGURE 1 c); 8 th tergite rectangular and wide with basal and apical margin shallowly concave ( Fig. 1View FIGURE 1 c); 10 th tergite reduced to a pair of quadrate sclerites with narrow baso-lateral projections; cercus without dorsal setulae ( Fig. 1View FIGURE 1 c). Male subepandrial sclerite rectangular, wide and short, with baso-lateral corners slightly extended and acute; surstylus short and almost oval ( Fig. 1View FIGURE 1 e); basiphallus teardrop-shaped ( Fig. 1View FIGURE 1 d), distiphallus membranous but with dorsal sclerotized triangular region.

Included species. A. flukiella ( Curran, 1941)  .

Notes. Atylobaccha  currently includes only the species A. flukiella ( Curran, 1941)  . Hull (1949 a) described Atylobaccha  as a subgenus of Leucopodella  for the “quite small peculiar species, flukiella Curran  , with its hyaline wings and simple femora”. Hull (1949 a) treated Atylobaccha  as a separate genus in his key (p. 102), although earlier in the same paper (p. 94) he explicitly stated that it should be regarded as a subgenus of Leucopodella  .












Atylobaccha Hull, 1949

Miranda, Gil Felipe Gonçalves, Marshall, Stephen A. & Skevington, Jeffrey H. 2014



Hull 1949: 94