Umairia zeera Hayat

Hayat, Mohammad, 2014, Eutrichosomellini (Hymenoptera: Chalcidoidea: Aphelinidae) from India, with description of two new genera, Zootaxa 3821 (4), pp. 425-442 : 436-438

Umairia zeera Hayat , sp. nov.

( Figs 27–35 )

Female. Holotype. Length, 0.87 mm. Head with frontovertex and face orange with pale brown suffusions, slightly shiny; inter-torular area whitish yellow; mouth margin brown; head, in profile, orange up to malar sulcus, with a white band behind malar sulcus extending above behind lower half of eye margin, and dark brown posterior to white band; occiput with a dark brown patch on each side of foramen magnum. Antenna with radicle brown; scape orange in about basal half, white in distal half; pedicel brown, ventrally orange-brown; F1 orange, F2, F3 and clava white. Mesosoma largely orange; mid lobe of mesoscutum along anterior margin [sculptured area] dark brown, this area distinctly separated from rest of posterior orange area; metanotum medially and propodeum laterally orange brown; prepectus and mesopleuron white; metapleuron orange brown. Fore wing ( Fig. 33 ) hyaline, with infuscation about as in U. laiba ; distal veins of fore wing as in Fig. 34 . Hind wing hyaline. Fore leg with coxa largely blackish, basally white; trochanter brown; rest of leg white, with apex of femur and base of tibia, brownish yellow. Mid leg with coxa white; trochanter pale brown; femur white; tibia pale brownish yellow, becoming white distally; spur and tarsus white. Hind leg with coxa white; trochanter pale brown; femur and tibia each in about basal third brownish yellow, distal two-thirds white; tarsal segments 1–4 white, fifth pale brownish yellow. Metasoma with petiole orange; gaster dark brown, but TI white with a narrow brown band across base and TII in about anterior half brown, laterally dark brown; ovipositor sheaths pale yellow.

Head ( Fig. 28 ), in frontal view slightly broader than high; minimum width of frontovertex 0.48× head width; eye bulged; mid-longitudinal frontal groove long, its length 0.52× minimum width of frons; scrobes deep, with lateral margins distinctly elevated and sharp, meeting above ( Fig. 29 ); malar space 0.47× eye height; head appears smooth; setae brown; eye with hyaline setae, each seta about as long as a facet. Mandible ( Fig. 30 ) rudimentary, lobe-like, apically pointed. Antenna ( Fig. 27 , clava collapsed) with scape 3.45× as long as broad; clava shorter than pedicel and funicle combined, and about 2.7× as long as broad; F1 without longitudinal sensilla; F2, F3 and clava with sensilla present. Relative measurements (holotype, slide) at 100×—head frontal width, 37.5; head frontal height, 34.75; minimum width of frontovertex, 18.3; eye height, 19; malar space, 9; antennal scape length, 20.75. Antennal segments length (width) at 400×—scape, 83 (24); pedicel, 22 (14.75); F1, ventral, 11 (15.5); F2, dorsal, 15 (17.5); F3, dorsal, 16 (19.5); clava, 58 (21.5) [Width of clava from the other antenna of the holotype].

Mesosoma ( Figs 31, 32 ). Mid lobe of mesoscutum with a mid-longitudinal groove extending on to scutellum anteriorly; anterior width of axilla about 0.72× width of anterior margin of scutellum; scutellum in about posterior three-fifths dome-shaped; metanotum [on slide, anterior margin of metanotum overlaps posterior margin of scutellum] 1.37× as long as median length of propodeum; pronotum with sculpture not discernible; mid lobe of mesoscutum anteriorly with a distinct, raised reticulate sculpture, cells transversely elongate; the sculptured area sharply separated from rest of mid lobe which appears smooth; side lobe of mesoscutum, axilla and scutellum smooth with sculpture not discernible at 400× magnification; metanotum medially and propodeum in a small median area with fine, polygonal reticulate sculpture; propodeum on each side proximal to spiracles with a curved ridge; setae on mesosomal tergites as follows: each half of pronotal collar with a line of short setae and 1 long seta at each posterolateral corner; mid lobe of mesoscutum with submedian pair of long, dark, bristle-like setae in about anterior half of mid lobe, 3 (should be 4) setae anterior to long pair of setae, and a curved line of 10 setae submarginal to anterior margin of mid lobe; each side lobe with 1 long and 2 short setae; distance between posterior pair of scutellar setae about 3× distance between anterior pair; propodeum distal to each spiracle with 4 or 5 setae. Fore wing 2.35× as long as broad; costal cell slightly (1.1×) longer than marginal vein; otherwise as in Fig. 33 . Hind wing 5.3× as long as broad; marginal fringe 0.43× wing width. Relative measurements (holotype, slide)—mesosoma length, 42; mesoscutum length (width), 18 (29); scutellum length (width), 13 (20); width of axilla, 8; width of anterior margin of scutellum, 11; mid tibia length, 35; mid basitarsus length, 8; mid tibial spur length, 6.

Metasoma (on slide, Fig. 35 ) slightly longer than mesosoma (47:42); ovipositor extends from posterior margin of TIV of gaster, and exserted to 0.17× gaster length; setae on TI–TVII as follows: TI, 1 + 1; TII–TIV each, 3 + 3; TV, 2 + 2; TVI, 2; TVII, 6. Relative measurements (holotype, slide)—ovipositor length, 34.5; third valvula length, 12.

Male. Unknown.

Material examined. Holotype ( NBAII, registration No. ICAR / NBAII / APHL 12),♀ (on slide under 4 coverslips, and scape of one antenna under a piece of coverslip), labelled “ INDIA: MEGHALAYA: Ri Bhoi, Umiam, 21.xii.2013 (YPT [Yellow Pan Trap]), Coll. K. Veenakumari”

Distribution. India: Meghalaya.

Etymology. The species name is derived from an arbitrary combination of letters, and may be taken as a noun in apposition.

Comments. I have one male collected from V.K. Rayapuram (Andhra Pradesh, Kakinada, 5.ii.2014, Coll. S.K. Ahmad) which may be the male of this species, but this is not certain in the absence of females from the same locality.

This new species is quite different from U. laiba sp. nov. and can be separated as follows:

Umairia zeera— Head, in frontal view, slightly broader than high, with eyes bulged; scrobes deep with margins distinctly elevated and sharp; frontal longitudinal groove distinct, its length 0.52× minimum width of frons. Antennal scape 3.45× as long as broad. Mid lobe of mesoscutum with pair of long, bristle-like submedian setae located in about anterior half of mid lobe. Scutellum dome-shaped. Fore wing with costal cell very slightly (1.1×) longer than marginal vein. TI of gaster with 2 (1 + 1) setae.

Umairia laiba— Head, in frontal view, slightly higher than broad, with eyes not bulged; scrobes shallow, with rounded margins; frontal groove fine, its length 0.4× minimum width of frons. Antennal scape 4.4× as long as broad. Mid lobe of mesoscutum with pair of long, bristle-like submedian setae located in about anterior third of mid lobe. Scutellum normal, slightly convex. Fore wing with costal cell 1.66× as long as marginal vein. TI of gaster without setae.

Figures

FIGURES 27 – 35. Umairia zeera Hayat, gen. et sp. nov. Female: 27, antenna; 28, head, frontal view; 29, head, frontal view, camera lucida drawing; 30, mandibles; 31, pronotum and mesoscutum; 32, mesosoma distal to mesoscutum; 33, fore wing; 34, fore wing, distal venation; 35, metasoma.