Decevania parva ( Enderlein, 1901 )

Kawada, Ricardo & Azevedo, Celso O., 2007, Taxonomic revision of the Neotropical ensign wasp genus Decevania (Hymenoptera: Evaniidae), Zootaxa 1496, pp. 1-30 : 7-9

Decevania parva ( Enderlein, 1901)

(Figs. 61–67)

Evania parva Enderlein, 1901: 193 ; Deans, 2005: 17, 24–25, 43, 121, 124.

Hyptia parva: Bradley, 1908: 186 ; Kieffer, 1912: 14, 26–27; Hedicke, 1939: 42; Deans, 2005: 25. Decevania parva: Deans & Huben, 2003: 870 ; Deans, 2005: 25, 121.

FEMALE. Redescription of hototype: Head polished (Fig. 61). Mandible with two apical teeth. Eye small, elliptical, HE 1.57 x WE (Fig. 62). Malar space strigulate (Fig. 61). Face above of clypeus with reduced protuberance (Fig. 62). Gena flat in frontal view, wide in lateral view, WG 1.35 x WTO, genal carina incomplete or interrupted (Fig. 62). Lateral of vertex angularly convex in frontal view (Fig. 61). Ocellus small, DAO 0.70 x WTO; ocellar triangle not raised in frontal view (Fig. 61). Anterior ocellus not aligned in dorsal view of head. Clypeus pinched (Fig. 61). Occipital area wide (Fig. 62). Subocullar groove with conspicuous carina (Fig. 61). Toruli polished around them (Fig. 62). Antenna inserted at reaching level of eye top (Fig. 61). Antennal segments widened progressively; pubescence subappressed; scape long, scape LS 1.06 x HE; flagellomere I short, LF 1.00 x LP (Fig. 67).

Mesosoma: Thorax strongly raised (Fig. 65). Lateral scutellar region polished; posterior region of scutellum convex in profile (Fig. 66). Median region of scutellar groove with large fovea. Propodeum deeply areolate; median region of dorsal propodeum polished; posterior region flat in profile; small ridge posterolaterad of insertion of petiole large (Fig. 66). Mesepisternum narrow; anterior region partially areolate; posterior margin evenly areolate; upper region evenly areolate; lower region foveolate, lower region with few foveae; central region concave (Fig. 63). Metapleuron areolate-umbilicate; metepimeron almost flattened. Distal region of metafemur not dilated. Tarsal claw with two teeth. Basitarsal projection of hind leg long, with sharp apex. Basal cell setose. Stigmal vein narrow, WST 0.35 x LST, apex of posterior margin straight (Fig. 64). 1R1 vein slender distally. Stigmal + 1R1 long (Fig. 64). Stigmal + 1R1 LST 5.50 x WTO. Set of M+CU, 1CUa, 1CUb and 2CU veins sinuous.

Metasoma: Lost.

FEMALE. Description: Head inconspicuously punctate. Mandible with two apical teeth. Eye small, elliptical, HE 1.55 x WE. Malar space polished or politus. Face above of clypeus with polished protuberance. Gena bulging in frontal view, wide in lateral view, WG 1.67 x WTO, genal carina complete. Lateral of vertex angularly convex in frontal view. Ocellus small, DAO 0.50 x WTO; ocellar triangle not raised in frontal view; anterior ocellus not aligned in dorsal view of head. Clypeus wide. Occipital area wide. Subocullar groove with conspicuous carina. Toruli polished around them. Antenna inserted at reaching level of eye top. Antennal segments widened progressively; pubescence subappressed, with some setae outstanding; scape long, scape LS 1.29 x HE; flagellomere I long, LF 1.14 x LP.

Mesosoma: Pronotum wide in lateral view, LPR 0.67 x WTO, with conspicuous fovea in anterior corner. Mesoscutum wide, anterior depression with short scrobiculate, lateral carina incomplete anteriorly; notaulus sulcate, straight. Lateral scutellar region umbilicated; posterior region of scutellum flat in profile; median region of scutellar groove with small fovea. Metanotum conspicuous medially. Propodeum deeply areolate; median region of dorsal propodeum polished; posterior region flat in profile; small ridge posterolaterad of insertion of petiole large. Mesepimeron weakly scrobiculate. Mesepisternum wide; anterior region wholly areolate; posterior margin irregularly areolate; upper region evenly areolate; lower region foveolate and punctate, lower region with few foveae, anterior area of lower region with fovea irregularly sparse; central region weakly concave. 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 2.98 x LM. Basal cell setose. Stigmal vein narrow, WST 0.09 x LST, apex of posterior margin straight. 1R1 vein slender distally. Stigmal + 1R1 long. Stigmal + 1R1 LST 5.33 x WTO. Set of M+CU, 1CUa, 1CUb and 2CU veins sinuous.

Metasoma: Petiole very long, strigulate dorsally, LPE 1.16 x LST.

Material examined. HOLOTYPE. Female. COLOMBIA, Bogotá: Linding Sammler, # 20398 ( ZMHU). New material. COLOMBIA, Cundinamarca: PNN Chingaza Bosque Palacio, 4°31’N 73°45’W, 2930 m, Malaise, L. Cifuentes col., 1 female, 24.xi–08.xii.2000, M. 1029 (IAvH 65780); 1 female, 20.xii.2000 – 05.i.2001, M. 1223, IAvH 65781; PNN Chingaza Charrascales, 2990 m, 1 female, 22.ii–15.iii.2002, E. Ralgoso col., M. 3049 (IAvH 67503); 1 female, 24.iv.2002, F. Guzmán col., M 3212 (IAvH 65784); PNN Chingaza Valle del Fraylejon, 3170 m, 1 female, 20.xii.2000 – 05.i.2001, L. Cifuentes col., M 1220 (IAvH 65787) ( IAVH).

Comments. D. parva differs from the others species by having the face polished and strigulate laterally; torulus inserted inserted at top height eye level; scape long; 1R1 vein slender distally and stigmal vein narrow, straight ventral edge. The holotype of D. parva have the pronotum and mesoscutum damaged and the metasoma missing. So the five females collected at same type locality allowed us to redescribe the species.

Variation. Head, mandible, antenna, leg, mesosoma and metasoma dark castaneous; palpi light castaneous. Gena sometimes longer, genal groove complete; scutellar groove small in the middle and 2CU vein lobad distally. One specimen has the integument of the head rugose and 1R1 vein longer and more sclerotized.

Distribution. Colombia.