Decevania unidentata Kawada

Kawada, Ricardo & Azevedo, Celso O., 2007, Taxonomic revision of the Neotropical ensign wasp genus Decevania (Hymenoptera: Evaniidae), Zootaxa 1496, pp. 1-30 : 28-30

Decevania unidentata Kawada sp. nov.

(Figs. 89–97)

FEMALE. Description: Head, antenna, mandible, mesosoma and posterior leg dark castaneous; palpi, wing veins, metasoma, anterior and posterior legs light castaneous; wings hyaline and ocelli translucent.

FIGURE 98–104. D. striatigena (Kieffer) 98. head in frontal view; 99. head in lateral view; 100. mesepisternum in lateral view; 101. stigmal and 1R1 vein; 102. antennal segments 1–5; 103. mesoscutum in dorsal view; 104. dorsal region of mesosoma in profile. Scale bar = 200µ

Head: Punctate (Fig. 89). Mandible with two apical teeth. Eye small, nearly circular, HE 1.38 x WE (Fig. 90). Malar space strigate (Fig. 89). Face above of clypeus with reduced protuberance (Fig. 90). Gena flat in frontal view, narrow in lateral view, WG 1.00 x WTO, genal carina incomplete or interrupted (Fig. 90). Lateral of vertex evenly convex in frontal view (Fig. 89). Ocellus small, DAO 0.75 x WTO; ocellar triangle raised in frontal view (Fig. 89). Anterior ocellus not aligned in dorsal view of head. Clypeus pinched (Fig. 89). Occipital area wide (Fig. 90). Subocullar groove with conspicuous carina (Fig. 90). Toruli strigulate around them (Fig. 90). Antenna inserted at level of midline of eye (Fig. 89). Antennal segments widened progressively; pubescence subappressed, with some setae outstanding; scape long, scape LS 1.00 x HE; flagellomere I long, LF 1.25 x LP (Fig. 96).

Mesosoma: Thorax impunctate dorsally, not raised (Fig. 97). Pronotum wide in lateral view, LPR 0.75 x WTO, with conspicuous fovea in anterior corner. Mosonotum aligned (Fig. 97). Mesoscutum wide, anterior depression with short scrobiculate, lateral carina complete; notaulus with circular punctures, straight (Fig. 92). Lateral scutellar region umbilicated; posterior region of scutellum flat in profile (Fig. 97). Median region of scutellar groove with large fovea. Metanotum inconspicuous medially. Propodeum deeply areolate; median region of dorsal propodeum areolate; posterior region flat in profile; small ridge posterolaterad of insertion of petiole large (Fig. 97). Mesepimeron strongly scrobiculate. Mesepisternum wide; anterior region wholly areolate; posterior margin irregularly areolate; upper region irregularly areolate; lower region foveolate, lower region with many foveae, anterior area of lower region with fovea irregularly sparse; central region concave (Fig. 95). Metapleuron areolate-umbilicate; metepimeron bulging. Distal region of metafemur dilated (Fig. 91). Tarsal claw with one tooth (Fig. 93). Basitarsal projection of hind leg long, with sharp apex. Wing LFW 2.44 x LM. Basal cell setose. Stigmal vein narrow, WST 0.15 x LST, apex of posterior margin convex (Fig. 94). 1R1 vein slender distally. Stigmal + 1R1 long (Fig. 94). Stigmal + 1R1 LST 5.00 x WTO. Set of M+CU, 1CUa, 1CUb and 2CU veins sinuous.

Metasoma: Petiole very long, strigate dorsally, LPE 1.15 x LST.

Material examined. HOLOTYPE. Female. ECUADOR, Sucumbios: rio Napo, Sacha Lodge, 220–230 m, 0°30’S 76°30’W, 23.vi–03.vii.1994, Malaise, P.J. Hibbs col ( CNCI).

Comments. D. unidentata sp. nov. differs from the others species by having gena long; occipital area wide with conspicuous transverse carinae; scape longer; antennal segments longer than wide; pronotum and occipital area with in the same width and texture; distal regin of metafemur dilated; tarsal claw with one tooth; petiole dorsally and laterally strigate.

Distribution. Ecuador.

Etymology. This species name refers to the presence of one tarsal claw tooth.