Herina odnosumi Kameneva and Pljushtch

Kameneva, Elena P. & Pljushtch, Igor G., 2010, The Central Asian Herina (Diptera: Ulidiidae), with the description of a new species from Afghanistan, Zootaxa 2424, pp. 42-50 : 46-49

Herina odnosumi Kameneva and Pljushtch sp. nov.

( Figs. 2 ; 12–22)

Material examined. Types. Holotype Ƥ (dissected): AFGHANISTAN: Bande-Amir, 3100 m, 4.07.2009 (Pljushtch). Paratype 3: same data as in holotype (dissected; wings shriveled) ( SIZK).

Diagnosis. This species can be recognized by its predominantly reddish yellow body coloration, which is not occurring elsewhere among the Old World Herina , and the combination of the pointed flagellomere 1, yellow and brown wing pattern, vein R1 setulose only in apical portion, and medial surstylus bilobate with 3 prensisetae on each lobe.

Description. Head ( Fig. 12 ) 1.4 times as high as wide in profile. Frons widened anteriorly, 0.7 times as wide as long posteriorly and as wide as long anteriorly, with matt reddish-yellow frontal vitta and densely silvery microtrichose band along eye margin, slightly extending into frontal vitta. Ocellar triangle matt black, vertical plates and dorsal margin of occiput shining orange yellow. Parafacial 0.5 times as wide as flagellomere 1, silver microtrichose. Face shining orange yellow, except lunule and antennal grooves matt yellow; facial carina concave in profile, with ventral margin of face conspicuously protruding anteriorly. Clypeus brownish yellow, antenna and palpus reddish or brownish yellow; flagellomere 1 twice as long as wide, grey microtrichose, pointed dorsoapically; arista yellow in basal tenth of its length, remainder dark brown, short pubescent; palpus wide and ventroapically rounded, with moderately long black setae.

Compound eye vertical oval, 1.7 times as high as long. Gena brownish-yellow with moderately long setulae, moderately low, 0.17 times as high as eye, with non-microtrichose area ventral to eye. Occiput densely microtrichose and orange yellow in ventro-lateral portion. Two moderately strong verticals, 1 orbital, 1 tiny ocellar and 1 short postocellar seta. All setae and setulae black.

Thorax subshining orange, except triangular and posteriorly widened medial vitta on mesonotal scutum ( Fig. 13 ), and entire katepisternum black and densely grey microtrichose ( Fig. 14 ). Mesonotum sparsely setulose in presutural portion and devoid of setulae in postsutural portion. Scutum conspicuously elongated, 1.7 times as long as wide between presutural corners and 1.4 times as long as wide between postalar setae, widening posteriorly. Only 1 postpronotal, 1 supra-alar, 1 dorsocentral, 0 acrostichal, 1+2 anepisternal and 1 katepisternal setae present. Proepisternal seta not developed or missing (no alveolus found). Scutellum subshining orange with 4 strong setae. All setae and setulae black. Mediotergite shining orange, brown medially.

Legs yellow, except apical tarsomeres brown, moderately setulose (setae and setulae black).

Wing ( Fig. 2 ) hyaline with yellow anterior margin from basicostal cell and base of basiradial cell to apex of cell r1, two brown crossbands covering crossveins r-m and dm-cu, and brown apical band isolated from wing apex by narrow crescent hyaline area in cells r1, r2+3 and r4+5. Costal cell brown, narrowly whitish emarginated; cell r1 and extreme bases of cells r2+3 and br brown yellow; pterostigma yellow brown; discal crossband brown, reaching from cell r1 apex through crossvein r-m into posterior half of cell dm; subbasal crossband brown, reaching from posterior wing margin through crossvein dm-cu into cell r4+5. Apical band oblique, reaching from apex of cell r1 into apex of cell m, twice as wide as other crossbands. Vein r-m at level of R1 apex. Vein R1 setulose only on apical half. Cell bcu (=cup) with well developed triangular postero-apical lobe. Calypters and halteres white.

Abdomen uniformly brown or yellowish brown, matt, dark brown setulose. Tergites 3–5 wide, with lateral margins extending onto ventral side. Sternites 2–5 subquadrate. Female sternites 4–6 with long medioventral apodemes, sternite 6 trapezoid, posteriorly at most 1.2 times as wide as sternite 5 ( Fig. 15 ).

Male terminalia ( Figs 19-22 ). Medial surstylus bilobate, lateral lobe bearing 2 posteriorly directed large and one small prensisetae, mesal lobe with 2 mesally directed large and one small prensisetae; lateral (anterior) surstylus finger-like, bearing one prensiseta ( Figs. 19–21 ); phallus ( Fig. 22 ) covered with uniformly acute spine-like acanthi, tip short, membranous; epiphallus not developed.

Female terminalia ( Figs 16-18 ). Oviscape yellow, 0.57 mm long; aculeus 5 times as long as wide, 0.86 mm long ( Fig. 16 ), with moderately wide cercal unit ( Fig. 17 ). Three long and narrow spermathecae, 0.2 mm long and 8–8.5 times as long as wide ( Fig. 18 ).

Measurements: Wing length 4.3 mm. Body length: 4.0 mm.

Etymology. The new species is named in honor of our colleague and friend, the Ukrainian coleopterist Vladimir K. Odnosum (Kiev), in recognition of his contribution into studies of the Central Asian entomofauna and on the occasion of his 60th birthday.

Figures

FIGURES 1 – 2. Wings. 1. Herina monticola (Stackelberg). 2. Herina odnosumi Kameneva & Pljushtch, sp. nov. Scale in mm.

FIGURES 12 – 13. Herina odnosumi Kameneva & Pljushtch, sp. nov. 12. Head, lateral view. 13. Mesonotum, dorsal view.

FIGURES 14 – 18. Herina odnosumi Kameneva & Pljushtch, sp. nov., holotype ♀. 14. Habitus, lateral view. 15. Abdominal sternites 3 – 6, ventral view. 16. Aculeus, ventral view. 17. Cercal unit, ventral view. 18. Spermathecae.

FIGURES 19 – 22. Herina odnosumi Kameneva & Pljushtch, sp. nov., paratype 3. 19. Epandrium, posterior view. 20. Same, right lateral view. 21. Epandrium, antero-ventral view. 22. Distiphallus (detached at base, uncoiled and compressed).