Thecomyia bonattoi Marinoni and Steyskal

Marinoni, Luciane, Steyskal, George C. & Knutson, Lloyd, 2003, Revision and cladistic analysis of the Neotropical Genus Thecomyia Perty (Diptera: Sciomyzidae), Zootaxa 191, pp. 1-36 : 22

6. Thecomyia bonattoi Marinoni and Steyskal , new species ( Figs. 11 , 23 , 35, 41, 44)

Description. Adult. Upper orbital seta absent. Fronto­orbital spot rounded, width approximately 1/3 frontal width. Rostrum 0.66 in male and 0.69 in female as high as eye. White microtomentose infra­ocular marking forming a triangle with margin between gena and postgena straight. Mid femur without anteromedial seta. Mid and hind femora wholly yellowish. Mesonotum with medial gray, tripartite stripe; scutellum almost entirely yellow. Ejaculatory apodeme wide apically, anterior and posterior margins slightly concave ( Fig. 11 ). Phallapodeme almost straight. Anterior basiphallic process well developed, concave, anterior part bicuspid. Epiphallus large, well developed, extending to base of distiphallus. Distiphallus with 3 processes, 2 slender and pointed, right one wide, larger; large membranous projection under distiphallus. Hypandrium in lateral view with dorsal margin slightly concave and anteroventral margin narrow, not rounded ( Fig. 23 ). Anteroventral hypandrial plates in frontal view narrow, tapered laterally. Membranous projections of margins of anteroventral hypandrial plates with only a small portion visible, not extending to lateral margins of hypandrium; covered with minute hairs ( Fig. 23 ). Anterior surstylus absent, posterior barlike ( Fig. 11 ). Female sternites 6, 7 and 8 almost fused, longer than wide; anterior margin of sternite 6 very slightly sinuate; mid longitudinal portion less sclerotized. Spermathecal duct with sclerotized region joining spermatheca elongate; apical, digitiform projection short, but developed (Fig. 35).

Type specimens. HOLOTYPE MALE. 1. Small rectangular label: [ PANAMA] "Corazal, Canal Zone, 21.I.1929; 2. Small rectangular label: "collector, C.H. Curran"; 3. Yellow label: " AMNH "; in good condition except left flagellomere missing. PARATYPE FEMALE. The same labels as on the holotype, except for the date: 19.I.1929; in good condition except both flagellomeres missing. Both specimens in AMNH.

Etymology.­ The species epithet, bonattoi , is a Latin genitive patronym in honor of Sionei Ricardo Bonatto, L. Marinoni's husband.

Figures

FIGURES 9 ­ 11. Male terminalia, left lateral view: 9, Thecomyia abercrombiei Marinoni and Steyskal; 10, T. autazensis Marinoni and Styeskal; 11, T. bonattoi Marinoni and Steyskal.

FIGURES 18 ­ 23. Hypandrium, frontal view and right lateral view: 18, Thecomyia longicornis Perty; 19, T. lateralis (Walker); 20, T. limbata (Wiedemann); 21, T. abercrombiei Marinoni and Steyskal; 22, T. autazensis Marinoni and Steyskal; 23, T. bonattoi Marinoni and Steyskal. A, anterior; as, archlike struts; avp, anteroventral plates; d, dorsal; mp, membranous projection; v, ventral.