Japanagromyza dolobrata, Lonsdale, Owen, 2013

Lonsdale, Owen, 2013, Japanagromyza Sasakawa (Diptera: Agromyzidae) of Africa, Zootaxa 3709 (5), pp. 445-460 : 449-451

Japanagromyza dolobrata sp. n.

Figs 7–14

Description. Externally as described for J. crinicolis except as follows: wing length 3.3mm (♂); length of ultimate section of vein CuA1 divided by penultimate section 0.7; eye height divided by gena height 11.8. Female unknown. Genitalia: Subepandrial sclerite broad, bare and dorsally lobate, with halves nearly meeting at a point medially. Surstylus entirely fused to epandrium and with tubercle-like setae along outer margins; directed inwards and slightly recessed. Cercus narrowest basally. Hypandrium narrow and with long thick apical apodeme; inner setose lobe separate, floating. Phallophorus small, fused to basiphallus, which is narrow, dorsally sclerotized and slightly twisted clockwise around shaft; basiphallus widely separated from mesophallus by membranous space. Mesophallus dark, subcylindrical and fused to large, elaborate distiphallus. Distiphallus with dark basal bulb connected to medial, internally spinulose chamber via a textured dorsal band emerging from the base of the bulb; ventrally with large, curved, blade-like carina that is contiguous with mesophallus and spinulose along right lateral surface. Ejaculatory apodeme with short, stout stem and developed basal process; blade large, clear and ovate with dark central rib; pileus ejaculatorius forming a transverse bar with ends upturned.

Variation: The paratype collected from the D.R. Congo differs externally as follows: wing length 2.4mm; length of ultimate section of vein CuA1 divided by penultimate section 0.6; vein r-m slightly distal to midpoint of cell dm; eye height divided by gena height 10.0. The genitalia are nearly identical except there is a shorter gap between the basiphallus and mesophallus and a shorter distance between the dark basal bulb of the distiphallus and the medial spinulose chamber.

Holotype: UGANDA. Entebbe, 10.iii.1972, H. Falke, in forest (1♂, CNC).

Paratype: D.R. CONGO. Oriental Prov.: Eyolo forest, ca. 2km E Lieke, 0.69642, 24.24186, 25–29.v.2012, A.H. Kirk-Spriggs, Boyekoll Ebale Congo Expedition 2010 (1♂, BMSA).

Comments. See comments for Japanagromyza crinicolis .

Figures

FIGURES 7 – 14. Japanagromyza dolobrata sp. n., male genitalia; 7: external genitalia, anterior; 8: external genitalia, ventral; 9: external genitalia, left lateral; 10: ejaculatory apodeme; 11: internal genitalia excluding phallus, ventral; 12: internal genitalia excluding phallus, left lateral; 13: phallus, left lateral; 14: phallus, ventral.