Decevania hemisphaerica Kawada

Kawada, Ricardo & Azevedo, Celso O., 2007, Taxonomic revision of the Neotropical ensign wasp genus Decevania (Hymenoptera: Evaniidae), Zootaxa 1496, pp. 1-30 : 17-19

Decevania hemisphaerica Kawada sp. nov.

(Figs. 53–60)

MALE. Description: Head, mesosoma and metasoma dark castaneous; antenna, mandible, palpi, legs, tegula, wing veins, anterior and median legs castaneous; wings hyaline and ocelli translucent.

Head: Inconspicuously punctate (Fig. 53). Mandible with two apical teeth. Eye large, elliptical, HE 1.75 x WE (Fig. 54). Malar space strigulate (Fig. 53). Face above of clypeus with reduced protuberance (Fig. 54). Gena bulging in frontal view, wide in lateral view, WG 1.50 x WTO, genal carina incomplete or interrupted (Fig. 54). Lateral of vertex evenly convex in frontal view (Fig. 53). Ocellus large, DAO 1.00 x WTO; ocellar triangle not raised in frontal view (Fig. 53). Anterior ocellus not aligned in dorsal view of head. Clypeus wide (Fig. 53). Occipital area narrow (Fig. 54). Subocullar groove with inconspicuous carina (Fig. 53). Toruli polished around them (Fig. 54). Antenna inserted at reaching level of eye top (Fig. 53). Antennal segments evenly wide; pubescence subappressed, without some setae outstanding; scape short, scape LS 0.81 x HE; flagellomere I long, LF 1.83 x LP (Fig. 58).

Mesosoma: Thorax impunctate dorsally, strongly raised (Fig. 59). Pronotum wide in lateral view, LPR 0.75 x WTO, with inconspicuous fovea in anterior corner. Mosonotum aligned (Fig. 55). Mesoscutum linear, lateral carina incomplete anteriorly; notaulus sulcate, arched (Fig. 55). Lateral scutellar region umbilicated; posterior region of scutellum gibbous in profile (Fig. 59). Median region of scutellar groove with small fovea. Metanotum conspicuous medially. Propodeum shallowly areolate; median region of dorsal propodeum polished; posterior region flat in profile; small ridge posterolaterad of insertion of petiole absent (Fig. 59). Mesepimeron weakly scrobiculate. Mesepisternum wide; anterior region partially areolate; posterior margin irregularly areolate; upper region evenly areolate; lower region polished, anterior area of lower region with fovea evenly sparse; central region weakly concave (Fig. 60). Metapleuron areolate-umbilicate; metepimeron almost flattened. Distal region of metafemur not dilated. Tarsal claw with two teeth. Basitarsal projection of hind leg long, with blunt apex. Wing LFW 3.20 x LM. Basal cell setose. Stigmal vein narrow, WST 0.16 x FIGURE 53–67: Decevania hemisphaerica sp. nov (Figs. 53–59). 53. head in frontal view; 54. head in lateral view; 55. mesoscutum in dorsal view; 56. stigmal and 1R1 vein; 57. basal cell region; 58. antennal segments 1–6; 59. dorsal region of mesosoma in profile; 60. pronotum and mesepisternum in lateral view. D. parva (Enderlein) (Figs. 60–67). 60. head in frontal view; 61. head in lateral view; 62. mesepisternum in lateral view; 64. stigmal and 1R1 vein; 65. mesoscutum in dorsal view; 66. dorsal region of escutellum and propodeum in profile; 67. antennal segments. Scale bar = 200µ LST, apex of posterior margin convex (Fig. 56). 1R1 vein slender distally. Stigmal + 1R1 long (Fig. 56). Stigmal + 1R1 LST 8.00 x WTO. Set of M+CU, 1CUa, 1CUb and 2CU veins very sinuous (Fig. 57).

Metasoma: Petiole long, strigate dorsally, LPE 0.94 x LST.

Material examined. HOLOTYPE. Male. BOLIVIA, Yungas Chapare: 2200 m, 22–24.i.1976, L. E. Pena col ( CNCI).

Comments. Decevania hemisphaerica sp. nov. differs from the others species by having head with inconspicuous punctate; eye elliptical; torulus inserted at top height eye level; gena dilated frontally, wide lateraly and genal carina incomplete; subocular groove with inconspicuous carina; flagellomere I long; M+CU, 1CUa, 1CUb and 2CU very sinuous and petiole strigate dorsally.

Distribution. Bolivia.

Etymology. The name refers to the globose shape of head in profile.