Euphranta hyalipennis David & Freidberg

David, K. J., Hancock, D. L., Freidberg, A. & Goodger, K. F. M., 2013, New species and records of Euphranta Loew and other Adramini (Diptera: Tephritidae: Trypetinae) from south and southeast Asia, Zootaxa 3635 (4), pp. 439-458 : 444-446

Euphranta hyalipennis David & Freidberg , sp. nov.

( Figs 20–26 )

Description. Male. Body length, 5.9 mm; wing length, 3.9–4.33 mm.

Head ( Fig. 20 ): black, slightly higher than long, 1.4–1.6 mm wide and 1.1 mm high. Frons black with 2 frontal setae, 1 orbital seta (transversely aligned with posterior frontal seta). Vertex with fulvous transverse band behind ocellar triangle, along the line of verticals and postocellars, extending to orbital seta. Antenna as long as or slightly longer than face, scape and pedicel fulvous, first flagellomere dark fuscous with fulvous base; arista short plumose, plumosity narrower than first flagellomere. Face strongly concave, ventral part strongly protuberant, forming an angle of about 110º with dorsal part, shiny black or coffee-brown in colour with white, narrow, oblique markings towards ventral facial margin reinforced by conspicuous white microtrichia (diffused in few specimens). Gena and parafacial yellowish brown to dark brown, occiput black except dorsal to occipital foramen; ocellar seta vestigial, postocellar, medial vertical and lateral vertical setae present, postocular setae thin and black, intermixed short and long.

Thorax ( Figs 21 & 22 ): 2.2–2.4 mm long; 1.4–1.5 mm wide. Scutum mostly dark brown to black except narrow yellow lateral postsutural vitta, broad yellow prescutellar patch, base of transverse suture and notopleuron; mostly densely microtrichose; katepisternum entirely with dense silvery microtrichia, except at posterodorsal corner, around seta, extending also to ventral part of anepisternum. Chaetotaxy complete; 2 scapular, 1 postpronotal, 2 notopleural, 1 postsutural supra-alar, 1 intra-alar, 1 dorsocentral, 1 prescutellar acrostichal, 2 anepisternal and 1 katepisternal seta. Anepisternum and anepimeron black; katepisternum with 1 posterodorsal seta, laterotergite with fine whitish erect hairs. Scutellum yellow with two pairs of subequal setae. Haltere yellow with brown base.

Legs ( Fig. 22 ): Forefemur fulvous with subapical fuscous ring, about 0.3 times as long as femur, and also a dorsal band, foretibia fulvous; midfemur almost entirely black, slightly yellow at base; forecoxa almost entirely yellow; midcoxa half black half yellow; hindcoxa blackish; hindfemur and hindtibia black except distal 0.33 of hindtibia yellow; midtibia with a prominent spine.

Wing ( Fig. 23 ): 3.9–4.3 mm long, predominantly hyaline with a faint transverse band just beyond pterostigma which is curved distally/or apicad to reach hind margin over crossvein DM-Cu, pterostigma yellowish, 2.8× as long as broad, R-M crossvein transversely aligned with the apex of pterostigma. R1 setulose, R4+5 densely setulose along basal half, cell bcu with broad apical extension.

Abdomen ( Fig. 24 ): 2.4–2.5mm long; 1.2 mm wide, shiny black without any markings. Epandrium and surstylus as in Fig. 25 ; glans of phallus strongly sclerotised with well developed acrophallus and praeputium, vesica short and tubular ( Fig. 26 ).

Material examined: Holotype 3, INDIA: Karnataka, Bangalore, 916m, 27.vii.1980, K. Gohrpade Coll. (TAUI). Paratypes: 1 3, same data except 24–31.v.1980; 4 3, same data except 23.vi.1980; 1 3, same data except 3–10.vii. 1989, 1 3, same data except 4.vii.1989; 2 3, same data except 5.vii.1989; 1 3, same data except 7.vii.1989; 2 3, same data except 8.vii.1989; 1 3, same data except 9.vii.1989; 1 3, same data except 10.vii.1989; 1 3, same data except 19.vii.1989; 1 3, same data except 20.vii.1989; 33, same data except 24.vii.1989; 1 3, same data except 26.vii.1989; 4 3, same data except 27.vii.1989; 1 3, same data except 2.viii.1989; 1 3, same data except 9.viii.1989; 1 3, same data except 16.viii.1990; 1 3, same data except 18.viii.1989, 2 3, 1 Ƥ, same data except 20.viii.1990 (TAUI).

Etymology: The specific epithet is a Latin adjective, hyaline-or translucent-winged.

Remarks: This species can be readily differentiated from other species of Euphranta by its hyaline wing with a faint transverse band.

Figures

FIGURES 20 – 23. Euphranta hyalipennis sp. nov. 20, head; 21, thorax (dorsal view); 22, thorax (lateral view) and legs; 23, wing.

FIGURES 24 – 26. Euphranta hyalipennis sp. nov. 24, abdomen; 25, epandrium and surstyli (posterior view); 26, glans of phallus.