Zeuxevania hubeni Kazmi and Rameshkumar 2021

Kazmi, Sarfrazul Islam & Rameshkumar, Anandhan, 2021, Description of a new species of Zeuxevania Kieffer (Hymenoptera: Evaniidae) from India with a key to species, Biodiversity Data Journal 9, pp. 59487-59487 : 59487

Zeuxevania hubeni Kazmi and Rameshkumar 2021 sp. n.

Materials

Type status: Holotype. Occurrence: recordedBy: K. G. Emiliyamma; individualCount: 1; sex: female; lifeStage: adult; Taxon: phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Evaniidae; Location: continent: Asia; country: India; countryCode: IN; stateProvince: Kerala; municipality: Kozhikode; locality: Kadaludi Bird Sanctuary ; Identification: identificationID: Reg. No. 24571/H3; identifiedBy: Kazmi and Rameshkumar; Event: eventID: Kadaludi Bird Sanctuary; samplingProtocol: Net Sweep; eventDate: 05 May 2005; habitat: Forest; Record Level: institutionID: Zoological Survey of India

Description

Female (Fig. 1 a, b). Body length 4.2 mm.

Head. Black and smooth; ocelli and eyes silvery; genae smooth, lustrous (Fig. 1 c, d); mandibles brown with yellow patch, teeth brownish-yellow; antennal radical, scape, pedicel and F1 yellowish; F2 brownish-yellow, remaining antennal segments (F3-F11) dark brown. Head almost quadrate; frontovertex smooth, flat, about half of head width, almost equal to scape length; POL 0.5 × OOL, 1.2 × OAL; malar space 3.0 × POL; maxillary palp 5-segmented; labial palp 3-segmented; mandibles 3-dentate; a pair of keels runs obliquely below the eye to the base of clypeus; antennal sockets arise just above the base of eyes; antenna 13-segmented (Fig. 2 a); scape 2.4 × longer than broad, subequal to eye length; pedicel 0.5 × F1; F1 2.7 × as long as broad. Relative measurements (in mm) - head width (height), 0.9 (0.1); frontovertex width, 0.5; POL, 0.1; OAL, 0.08; OOL, 0.19; eye length (width), 0.6 (0.3); malar space length, 0.32; scape length (width), 0.6 (0.25); pedicel length (width), 0.2 (0.12); F1 length (width), 0.4 (0.15).

Mesosoma. Orange brown; tegulae testaceous; mid-lobe of mesoscutum dark brown; mesosoma smooth not punctate on dorsal side, foveate on lateral side; mesoscutum 0.7 × longer than broad; pronotum with long setae evenly distributed; pronotal neck obscured; dorsal pronotal area concealed medially; notaulus present as continuous furrow, curved towards middle reaching up to posterior margin; parascutal carina present; mesoscutum silvery setae evenly distributed, mid-lobe elevated; parapsidal line present; scutellum 0.5 × longer than broad, 0.6 × mesoscutum; mesoscutellum smooth with long and stiff setae evenly distributed; transcutal articulation absent; mesepimeral sulcus present; mesopleural pit absent; dorsal propodeal area with long setae (compared with mesoscutum and scutellum) evenly distributed; nucha not elevated.

Legs (Fig. 2 c): Fore and mid coxa orange brown; fore and mid trochanter whitish-brown; fore and mid femur brown to dark brown; fore tibia and tarsi yellowish-brown; mid-tibia, tarsi brown; hind coxa white except apices brown, not punctate; trochanter white; hind femur dark brown; hind tibia basal 1/3 yellowish-brown, rest of hind legs dark brown; hind tibial spur yellowish; hind tibia as long as hind femur length, 0.6 × mesosoma height; external tibial spur 0.75 × hind metatarsus; spine present on the dorsal surface of hind tibia. Relative measurements (in mm) - mesosoma height, 1.0; mesoscutum length (width), 0.5 (0.7); scutellum length (width), 0.3 (0.6); hind femur length (width), 1.5 (0.3); hind tibia length (width), 1.5 (0.2); hind metatarsus length, 0.6; tarsal length (1-5), 1.5; interior tibial spur length, 0.25; exterior tibial spur length, 0.45.

Wings (Fig. 2 b). Hyaline; seven cells; 1RS vein attached with Sc+R at base of stigma; 1M clearly separated from Sc+R; 3M, 3CU present; r-m present as nebulous vein; fore wing 2.5 × longer than wide; hind wing 3.0 × longer than wide; hamuli consisting of five hooks; M + CU longer than jugal lobe. Relative measurements (in mm) - fore wing length (width), 3.0 (1.2); hind wing length (width), 1.8 (0.6).

Metasoma (Fig. 2 d). Lustrous brown; ovipositor exserted, 0.2 × length of mesosoma; petiole smooth and shiny, basal half dark brown, apical half white, 0.46 × metasoma and 3.5 × longer than broad; ovipositor exserted, 0.5 × petiole length. Relative measurements (in mm) - petiole length (width), 0.7 (0.2); metasoma length (width), 1.5 (1.2); ovipositor (exserted part) length, 0.35.

Etymology

The species is named after Mr. M. Huben, Museum of Comparative Zoology, Harvard University, Cambridge, MA, USA in recognition of his contribution to the taxonomy of Evanioidea .

Distribution

India: Kerala.

Taxon discussion

Zeuxevania hubeni sp. nov. is very close to Z. curvicarinata (Cameron) ( Cameron 1899), but differs in having brown mandibles with yellow patch; mesosoma orange brown, hind coxa white, except brown apices without punctures; hind tibia basal 1/3 yellowish-brown; metatarsus dark brown; petiole smooth and shiny, longer spur of hind tibia 0.75 × metatarsus length (in Z. curvicarinata , mandibles reddish; mesosoma red; hind coxa black, transversely punctuate, more strongly at the base than apex; hind tibia and metatarsus white; petiole with few large punctures; longer spur of hind tibia nearly equal to the length of metatarsus). In comparison with Z. kasauliensis ( Mani and Muzaffer 1943), it differs in the following features: mandibles brown with yellow patch; the base of antennae yellowish; eye length and width ratio 2:1; hind coxa not punctate; basal 1/3 hind tibia yellowish-brown; hamuli consisting of five hooks; petiole basal half dark brown, apical half white (in Z. kasauliensis , mandibles reddish-brown; antennae dark reddish-brown; eye length and width ratio 10:7; hind coxa punctuate; hind tibia darker; hamuli consisting of nine hooks; petiole dark brown).