Griphophanes seriatus, Naglis, Stefan & Grootaert, Patrick, 2012

Naglis, Stefan & Grootaert, Patrick, 2012, Review of the genus Griphophanes Grootaert & Meuffels (Diptera, Dolichopodidae), with the description of ten new species from Sri Lanka, Zootaxa 3525, pp. 51-64 : 61-62

Griphophanes seriatus sp. nov.

( Figs. 10 A–B)

Material examined. SRI LANKA. HOLOTYPE 3: “ Ceylon, Centr. Prov., Rambukpath Oya, 10 mls NW Hatton, 18.III.62, Loc. 153”, “Swept above surface of small stream” ( ZMLU). PARATYPES: 1 3, same data as holotype. 1 3: “ Ceylon, Sabaragamuwa Prov., Hatherleigh, 1 mile S Rakwana at 1700 ft, 28.II.62, Loc. 101”, “on boulders in stream”; 1 3, “ Ceylon, Sabaragamuwa Prov., Stream at 2500 ft, 5 mls NNW Balangoda, 22.II.62, Loc. 96”, “Swept above surface of small stream”; 3 3, “ Ceylon, Sabaragamuwa Prov., Malwala, 3 mls NE Ratnapura, 20.II.62, Loc. 92”, “On boulders in stream”; 2 3, “ Ceylon, Sabaragamuwa Prov., Gilimale, Alt. 300 ft, 6 mls NE Ratnapura, 20.II.62, Loc. 93”, “Ravine with small stream”; 8 3, “ Ceylon, W. Prov., Eduragalla, 5,5 mls W Horana, 17 mls WNW Ratnapura, 17.II.62, Loc. 89”, “Swept in the veg. of small stream” (all ZMLU).

Diagnosis. Ac biseriate; first flagellomere as long as high; legs entirely dark brown; halter yellow; fore femur with av and pv row of fine setae which are as long as diameter of femur; fore tibia with ad row of setae which are as long as diameter of tibia; mid femur with 3–4 strong ventral setae on basal half; hind femur with anterior row of setae in line with preapical seta.

Description. Male: Length (holotype): body 1.7 mm, wing 1.7 mm. Head: Frons velvet black, with dense brownish pruinosity; eyes converging below antennae and almost contiguous; palpus black with a strong spine-like apical seta; antenna dark brown, first flagellomere about as long as high; lower postoculars black. Thorax: Mesonotum and scutellum dark metallic green, with brownish pruinosity; 5 strong dc; ac biseriate; scutellum with 2 strong marginal and 2 small lateral setae; pleura dark brown shining. Legs: Entirely dark brown, except trochanters pale brown. Fore leg: coxa with anterior setae; femur with av and pv row of fine setae, as long as diameter of femur; tibia with ad row of setae, as long as diameter of tibia or slightly longer on distal 2/3, and with ventral row of setae, as long as diameter of tibia on distal 1/3; basitarsus compressed laterally, with small spine-like ventral setulae; relative podomere ratios: 58, 55, 15/8/12 /10/8. Mid leg: coxa with strong lateral seta; femur with 1 strong anterior preapical seta, and 3–4 strong, spine-like ventral setae which are as long as diameter of femur on distal 1/3; tibia with ad/pd setal pair of strong setae on 1/5 and 1/2, and with 3–4 strong apical setae; relative podomere ratios: 67, 67, 30/14/12 /9/8. Hind leg: coxa with 1 strong lateral seta; femur with a row of strong erect anterior setae in line with preapical seta; tibia with strong ad/pd setal pair at 1/4 and 1/2, 1 strong and long dorsoapical seta, and 2 strong apical setae; relative podomere ratios: 68, 78, 18/ 22/17/12 /9. Wing: Hyaline, with grayish tinge; R4+5 and M parallel; CuAx ratio: 0.7; RMx ratio: 1.7; lower calypter pale brown with fan of dark brown setae; halter yellow. Abdomen: Dark metallic green, with brownish pruinosity; segments 6 and 7 ochreous brown, segment 8 dark brown; hypopygium including cercus dark brown. Hypopygium ( Figs. 10 A–B): hypandrium narrow, strongly curved apically; epandrial lobe round, with 2 strong apical setae; ventral lobe of surstylus triangular, with short apical seta; dorsal lobe of surstylus U-shaped, with short, spine-like apical seta and additional small setulae; postgonite slender, with 2 strong dorsal setae; cercus narrow, with 2 strong apical setae. Female: Unknown.

Etymology. The name refers to the conspicuous row of setae on the hind femur.

Figures

FIGURE 10. Griphophanes seriatus sp. nov. male genitalia: (A) hypopygium, left lateral view; cer = cercus; dsur = dorsal lobe of surstylus; epl = epandrial lobe; pgon = postgonite; vsur = ventral lobe of surstylus; (B) hypandrium, ventral view (scale bar = 0.1 mm).