Dasydorylas, Skevington, 2001

FÖLDVÁRI, MIHÁLY, 2013, Taxonomic revision of the Afrotropical species of the tribe Eudorylini (Diptera, Pipunculidae), Zootaxa 3656 (1), pp. 1-121 : 114-115

Genus Dasydorylas

1 Tips of surstyli elongated, curved strongly ventrally.......................................................... 2

– Tips of surstyli rounded, not curved ventrally................................................................ 5

2 Phallic guide with a pointed projection on the left side in ventral view. gonopods well developed, pointed; outer gonopod with a lobe extending towards phallic guide ( Figs 7G–K )................................... Dasydorylas bodocsi sp. nov.

– Phallic guide without pointed projection in ventral view. Gonopods less developed, rounded.......................... 3

3 Phallic guide with thick hairs, visible in lateral and ventral views, bent towards SS. Surstyli subsymmetrical, each with an appendage on the side in dorsal view ( Figs 8A–F ). All tibiae with a dark spine anteromedially (sometimes only short hairs present)................................................................. Dasydorylas evanidus (Hardy, 1949)

– Phallic guide without thick hairs. Surstyli different, tibae without dark spine....................................... 4

4 Phallic guide narrowing towards tip, S-shaped in lateral view. Surstyli large, both hook-shaped in lateral view and with extended basal lobes ( Figs 10G–L ). No anteromedial hairs on 3rd tibia............... Dasydorylas turneri (Hardy, 1949)

– Phallic guide short, straight, rather wide apically and with folded membranes, tip pointed in lateral view ( Figs 10A–F ). Surstyli smaller, 3–4 outstanding dark hairs anteromedially on 3rd tibia.................... Dasydorylas sordidatus ( Hardy, 1950)

5 Phallic guide with one spine on each side, pointed; phallus longer than SS, curved. ST8 with narrow m.a. SES with 12–14 little spines; gonopods symmetric, with 1–2 minute hairs on each side ( Figs 9G–L ). Femora and tibiae dark brown to black........................................................................... Dasydorylas quasidorsalis ( Hardy, 1961)

– Phallic guide without spines, pointed or not; phallus shorter than SS, m.a. broad. SES without spines, gonopods different, legs not dark............................................................................................. 6

6 Gonopods with at least 3 hairs on each side. Phallus with and extra structure, phallic guide broad at tip ( Figs 9A–F ). Two very distinct erect hairs on t3 anteromedially and 3–4 dark spines in a row on the hind trochanters ventrally............................................................................................ Dasydorylas okongoensis sp. nov.

– Gonopods without hairs, phallus without extra structure. Phallic guide different, no hairs on t3 or trochanters............. 7

7 Phallic guide has parallel sides in ventral view, slightly curved and pointed in lateral view. Phallus with teeth on one of the branches. Eyes touching for shorter than 5–6 times ocellar triangle, fourth costal section more than 0.5 times the length of third costal section, T5 shorter than 3 times the length of ST8. ST8 enlarged compared to epandrium, m.a. broad (Figs 7A–F). Three to four erect anteromedial hairs on 3rd tibia................................... Dasydorylas africanus (Lindner, 1956)

– Phallic guide pointed and with lobes in ventral view (curved towards SS in lateral view); tubes of the phallus very thin. Eyes touching for distance equal to 5–6 times ocellar triangle. Fourth costal section very short (0.5 times the length of third costal section). T5 3 times as long as ST8 ( Figs 8G–L ). ST8 and m.a. different, no hairs on 3rd tibia............................................................................................... Dasydorylas minymerus ( Hardy, 1962)

Figures

FIGURE 7. Male genitalia of Dasydorylas africanus (A–F) and D. bodocsi sp. nov. (G–K).—A: outer surstylus with phallic guide and phallus, lateral view, B: dorsal view, C: inner surstylus, lateral view, D: surstyli, dorsal view, E: sperm pump with ejaculatory apodeme, F: ventral view with phallic guide (without ST8), G: outer surstylus with phallic guide and outer gonopod, lateral view, H: dorsal view, I: inner surstylus, lateral view, J: surstyli, caudodorsal view, K: ventral view with phallic guide and phallus (without ST8). Scale bars: 0.1 mm

FIGURE 8. Male genitalia of Dasydorylas evanidus (A–F) and D. minymerus (G–L).—A: outer surstylus with phallic guide, phallus and outer gonopod, lateral view, B: dorsal view, C: inner surstylus, lateral view, D: surstyli, dorsal view, E: sperm pump with ejaculatory apodeme, F: ventral view with phallic guide (without ST8), G: outer surstylus with phallic guide and outer gonopod, lateral view, H: dorsal view, I: inner surstylus, lateral view, J: surstyli, dorsal view, K: sperm pump with ejaculatory apodeme, L: ventral view with phallic guide and phallus (without ST8). Scale bars: 0.1 mm

FIGURE 9. Male genitalia of Dasydorylas okongoensis (A–F) and D. quasidorsalis (G–L).—A: outer surstylus with phallic guide and outer gonopod, lateral view, B: dorsal view, C: inner surstylus, lateral view, D: sperm pump with ejaculatory apodeme, E: surstyli, dorsal view, F: ventral view with phallic guide and phallus (without ST8), G: outer surstylus with phallic guide, phallus and outer gonopod, lateral view, H: dorsal view, I: inner surstylus, lateral view, J: surstyli, dorsal view, K: sperm pump with ejaculatory apodeme, L: ventral view with phallic guide (without ST8). Scale bars: 0.1 mm

FIGURE 10. Male genitalia of Dasydorylas sordidatus (A–F) and D. turneri (G–L).—A: outer surstylus with phallic guide and outer gonopod, lateral view, B: dorsal view, C: inner surstylus, lateral view, D: ventral view with phallic guide and phallus (without ST8), E: sperm pump with ejaculatory apodeme, F: surstyli, dorsal view, G: outer surstylus with phallic guide, phallus and outer gonopod, lateral view, H: dorsal view, I: inner surstylus, lateral view, J: surstyli, dorsal view, K: sperm pump with ejaculatory apodeme, L: ventral view with phallic guide and phallus (without ST8). Scale bars: 0.1 mm