Nototelmatoscopus (Jozifekia) acutistylus, Kvifte & Andersen, 2016

Kvifte, Gunnar Mikalsen & Andersen, Trond, 2016, Two new species ofNototelmatoscopus (Jozifekia), with records of three other species from Thailand (Diptera: Psychodidae), Acta Entomologica Musei Nationalis Pragae 56 (2), pp. 827-835 : 829-830

Nototelmatoscopus (Jozifekia) acutistylus sp. nov.

( Figs 1–5 )

Type material. HOLOTYPE: J, THAILAND: CHIANG MAI PROVINCE: Doi Suthep-Pui National Park, Hmong village , waterfall with pond, 18.8163°N, 98.8831°E, 9.iv.1991, sweep-net, J. Kjaerandsen leg. ( ZMBN).

Diagnostic characters. Eyes separated by 1.5 facet diameters at narrowest point of separation, hypandrium absent, aedeagus distally reaching apex of gonocoxites, basiphallus two times the length of distiphallus, surstyli distinctly pointed apically with patch of 8–9 tenacula. Description. Male (n = 1). Head onion-shaped in frontal view, about as broad as long; vertex triangular in frontal view, two-fifths of total head length; 2–4 dorsal ocular setae present, not clearly discernable from other setae on vertex; setae alveoli on vertex not present on posterior knob; eye bridge comprised of four rows of facets, separated medially by 1.5 facet diameters; interocular suture obtusely U-shaped, reduced medially; frontal scar patch gourd-shaped, extending posteriorly to second facet row; frontoclypeal suture weakened but present; clypeus oval, distal one-fifth projecting in front of eyes; palp segments 2–4 not preserved, length of first palpomere 93 μm; labella bulbous, mouthparts otherwise typical of Psychodinae .

Antennae with only 9 preserved segments; scape ( Fig. 1 ) cylindrical with apical triangular projection; pedicel globular with distal sclerotized collar; flagellomeres slightly asymmetrical, with a ring of approximately 15 ascoid insertion points; additional circular sensillum base present posterior to ring of ascoids; length of scape, pedicel and first seven flagellomeres (in μm): 130, 93, 126, 115, 111, 111, 111, 111, 111.

Thorax with scutellum, anepisternum, laterotergite and most of dorsum setose; dorsum with bare posterolateral patches; other sclerites bare; prothoracic spiracle large, metathoracic spiracle with small setose operculum; inner mesocoxal setose projection present; legs not preserved apart from one mid leg; at least mesotibiae and mesotarsus 1 with irregular rows of warts, mesotarsus 5 with weak apicodorsal projection.

Wing ( Fig. 5 ) 2.02 mm long, 0.73 mm wide; costa apparently with single break; Sc terminating in wing membrane between C and R 1, continued as a false vein parallel to R 1; another pigmented false vein present between R 1 and R 2+3, base of R 2 slightly weakened; pigmented spot present posteriorly at wing base; medial fork slightly distad of radial fork, both basad to CuA 2; wing apex rounded between R 4 and R 5; jugum rounded triangular to ovoid.

Terminalia ( Figs 2–4 ) with hypandrium apparently reduced; gonocoxite reniform, slightly shorter than gonostyle; parabasal process lacking; gonocoxal condyles narrow, acutely arched and connected to a shield-shaped parameral plate, located ventral to aedeagus in dorsal view; gonostyle slender, blade-shaped, bent towards lateral side; aedeagus with basiphallus narrow in dorsal view with T-shaped base, distally Y-shaped; distiphallus present as two short distal lobes, one-third as long as basiphallus, reaching apex of gonocoxites; epandrium almost twice as broad as long, trapezoid with its widest part posteriorly, central aperture large and circular; anterior projections forming narrow bridge with broad triangular lateral bases; ventral epandrial plate U-shaped, connected to parameral plate and (presumably) to surstyli; surstyli ( Fig. 4 ) weakly S-shaped in dorsal view, slightly tapering to pointed apex; mesally with ‘cercal area’ in inner half; irregular patch of 8–9 tenacula present apicodorsally, tenacula about half length of surstylus, distally with truncate apices, unsplit or nearly so; proctiger with hypoproct and epiproct both tongue-shaped and setose, epiproct about half size of hypoproct and with larger hair scars; hypoproct reaching two-fifth the length of surstylus.

Etymology. From Latin acutus, pointed, and stylus, style, referring to the pointed apices of the surstyli. The epithet is to be treated as a noun in apposition.

Distribution and biology. Only known from the type locality in northern Thailand, where it was netted in vegetation along a pond below a waterfall.

Figures

Figs 1–4. Nototelmatoscopus (Jozifekia) acutistylus sp. nov., holotype, male. 1 – scape; 2 – aedeagus and gonopods, dorsal view; 3 – epandrium and proctiger, ventral view; 4 – surstyli, dorsal view.

Figs 5–6. Nototelmatoscopus (Jozifekia) spp., wings. 5 – N. (J.) acutistylus sp. nov., holotype, male; 6 – N. (J.) laticoxa sp. nov., holotype, male.