Acroceratitis Hendel 1913

Genus Acroceratitis Hendel Acroceratitis Hendel, 1913: 82. Type species Acroceratitis plumosa Hendel, by original designation. Stictaspis Bezzi, 1913: 102. Type species Stictaspis ceratitina Bezzi, by original designation. Diagnosis. Fruit flies of genus Acroceratitis are characterized by the presence of a dorsoapically pointed first flagellomere with plumose arista, head higher than long, wings with yellow to brown bands with orange-yellow or yellow patches, sometimes apically diffuse, and with the transverse band from pterostigma enclosing r-m crossvein, one apical spine on midtibia, male with enlarged abdominal tergite 2, female with two spermathecae comprised of tightly set coils (Hancock & Drew, 1999). Additionally, the proctiger in males is 2−3 times larger than the epandrium and densely covered with fine hairs, which can be considered a synapomorphy for the genus. Key to species of genus Acroceratitis Hendel 1. Wing with costal band interrupted in cell r 1 at apex of cell sc by a complete transverse hyaline band across wing (Fig. 21).. 2 - Wing with costal band entire or interrupted well beyond apex of cell sc (Figs. 1, 2, 17, 18)........................... 3 2. Scutellum predominantly black with yellow spots at bases of basal and apical scutellar setae; mid and hind femora fulvous (Fig. 21).................................................................................. A. tomentosa Hardy - Scutellum predominantly black with yellow spots only at bases of basal scutellar setae; mid and hind femora dark fuscous (David et al., 2014; fig. 21)........................................................... A. histrionica (Meijere) 3. Wing with costal band extending from cell sc to wing apex, cell r 1 without a medial hyaline patch; postpronotal lobe often with a large black spot; abdomen without paired submedial spots on tergites 3−5 (Figs. 1, 2).............................. 4 - Wing cell r 1 with a medial hyaline patch and pattern often apically diffuse; postpronotal lobe without a large black spot; abdomen with paired submedial spots on tergites 3−5 (Figs 17, 18)............................................. 13 4. Scutellum with three black patches separated by yellow lines (Fig. 19)............................................ 5 - Scutellum black apically with or without yellow spots but without yellow longitudinal lines (Figs. 6, 20).................9 5. Scutum predominantly fulvous without black or brown markings except for black posterolateral spots (Hancock & Drew, 1999; fig. 10)........................................................................ A. septemmaculata Hardy - Scutum brown with prominent postsutural lateral vittae and presutural yellow markings.............................. 6 6. Medial black spot on scutellum broad, reaching the base of scutum (Hancock & Drew, 1999; fig. 1).... A. bilineata (Meijere) - Medial black spot on scutellum as high as or slightly higher than as lateral spots but not reaching the scutum............. 7 7. Subapical band along dm-cu crossvein fused with costal band (Fig. 19); postpronotal black spot large.... A. ceratitina (Bezzi) - Subapical band along dm-cu crossvein separate and not fused with costal band (David et al., 2020; fig. 16); postpronotal black spot small or absent................................................................................... 8 8. Abdominal tergite 3 black or brown; postpronotal lobe with a small ventral spot (Hancock & Drew, 1999; fig. 11)............................................................................................. A. siamensis Munro - Abdominal tergite 3 fulvous; postpronotal lobe without spot (David et al., 2020; figs. 13, 15).......... A. incompleta Hardy 9. Postpronotal lobe yellow without black spot; abdominal tergite 3 entirely blackish brown (Hancock & Drew, 1999; fig. 13) (males unknown)............................................................ A. tenmalaica Hancock & Drew - Postpronotal lobe yellow with a large black spot (Figs. 2, 3); abdominal tergite 3 fulvous or blackish brown..............10 10. Abdominal tergite 3 fulvous (Figs. 1, 2)...................................................................11 - Abdominal tergite 3 black/ brown (Fig. 20)................................................................ 12 11. Scutellum black without yellow spots at bases of apical scutellar setae; abdominal tergite 3 yellow/fulvous; oviscape as long as or slightly longer than abdomen (Figs. 1, 2)............................. A. sachini David, Hancock & Noor, sp. nov. - Scutellum black with two yellow spots at bases of apical scutellar setae (Hancock & Drew, 1999; fig. 12); oviscape shorter than abdomen............................................................................. A. striata (Froggatt) 12. Oviscape short (0.85 mm); wing with subapical and posterior apical bands fused (David et al., 2014; figs. 16, 17) (males unknown)........................................................... A. breviscapa David, Ramani & Hancock - Oviscape longer (1.47 mm); wing with subapical and posterior apical bands not fused (Fig. 20).................................................................................................. A. parastriata David & Hancock 13. Scutellum predominantly yellow without any black markings; all femora black; face black (Hancock & Drew, 1999; fig. 8).................................................................................... A. nigrifacies Meijere - Scutellum yellow with three apical black markings (Figs. 17, 18, 22); femora fulvous or mid and hind femur with black markings; face fulvous.................................................................................14 14. Wing with transverse hyaline band complete, apical area without diffused pattern (Fig. 22).......................... 15 - Wing with transverse hyaline band interrupted, broken into a series of spots; apical area with diffused pattern............17 15. Scutum predominantly reddish brown, with reduced black area except for a medial longitudinal band; fore and mid femora predominantly fulvous, mid femur with ventral preapical spot (Fig. 22)........................... A. separata (Bezzi) - Scutum with extensive black area; mid and hind femora with extensive fuscous markings........................... 16 16. Scutellum with medial spot larger than lateral ones; mid and hind femora black (Hancock & Drew, 1999; fig. 9)............................................................................................... A. plumosa Hendel - Scutellum with medial spot not larger than lateral ones; mid and hind femora with fuscous markings, not black (Hancock & Drew, 1999; fig. 5)................................................................ A. hardyi Hancock & Drew 17. Aculeus apically rounded (Fig. 26c), glans of phallus with well developed sclerotisation (Fig. 25c)........ A. distincta (Zia) - Aculeus apically acute (Fig. 26a), glans of phallus weakly sclerotised (Fig. 25a)...................... A. bimacula Hardy