Ancistroceroides soikai Grandinete & Carpenter

Grandinete, Yuri Campanholo, Noll, Fernando Barbosa & Carpenter, James, 2016, Three new species of tribe Odynerini (Hymenoptera, Vespidae, Eumeninae) from the Neotropical Region, Zootaxa 4162 (2), pp. 391-400 : 392-394

Ancistroceroides soikai Grandinete & Carpenter , sp. nov.

( Figs 1–6 )

Comments and diagnosis. Ancistroceroides soikai sp. nov. ( Figs 1, 2 ) may be identified by: robust and predominantly black body; golden pubescence; coarse and dense punctation on head and mesosoma; pronotal carina present and well developed, lamellar ( Fig. 3 ); longitudinal lamellae on metanotum strongly developed; median longitudinal band broad and smooth on posterior face of propodeum; propodeal lamella present and weakly developed; superior-lateral region (above propodeal lamella) with dense punctures, forming well developed carinae; T1 sessile, very short and wide; transverse carina along the apical half of T1 ( Fig. 5 ); T2 wider than long, with coarse and very dense punctures on apex, forming distinct area ( Fig. 6 ).

Description. Holotype, ♀. Color. Black; yellow marks as follows: small square marks on each side of clypeus; small mark on inter-antennal region, ocular sinus and on upper half of gena; stripe on dorsal surface of pronotum; narrow stripe on posterior margin of dorsal surface of pronotum; small mark on posterior region of tegula; transverse band on scutellum, interrupted mesally; marks on apical region of fore femur and tibia; very narrow stripe on apex of T1. Reddish marks on apex of mandibles; scape and pedicel predominantly orange.

Pubescence. Body with golden pubescence; head and mesosoma with moderately long pubescence, longer on ocellar region, scutellum, metanotum and lateral region of posterior face of propodeum; median region of the posterior face of propodeum and the median longitudinal band without pubescence ( Fig. 4 ); metasoma with short pubescence, and some longer bristles on surface of S2 and on apex of the T2-T6 and S3-S6.

Sculpture. Clypeus and frons with coarse and very dense punctures; vertex as well, except behind the ocelli and gena where punctures are weaker and sparser; region around cephalic foveae smooth and shiny; mesosoma with coarse (deeper than on clypeus and frons) and very dense punctation, except for: basal region of metanotum smooth, except for weak punctures close to lamella; posterior surface of propodeum smooth; superior region of lateral surface of propodeum with well developed carinae formed due to dense punctures; T1 without evident punctation; weak and sparse punctures on first three quarters of T2, and very dense punctures on apical quarter ( Fig. 6 ), forming distinct area; same pattern on T3-T5 (weaker punctures on T5); S2 with widespread coarse and sparse punctation, slightly dense on apex; same pattern on S3-S5; T6 and S6 without evident punctures.

Clypeus wider than long, with apex weakly concave; inter-antennal region slightly wider than antennal sockets, with central protuberance; cephalic foveae close to each other, near occipital carina; gena narrower than distance between inner and external margin of the compound eye at ocular sinus level; occipital carina angled on basal half of gena; propodeal carina on dorsal surface lamellar, while on lateral surface it becomes less developed; mesepimeron slightly elevated with respect to mesepisternum; parategula short and bent at apex; posterior projection of tegula pointed, not surpassing parategula; metanotum with well developed carinae, adjacent to disc, fused posteriorly to well developed transverse lamella; posterior face of propodeum with median longitudinal band broad and smooth ( Fig. 4 ); propodeal lamella present and weakly developed; T1 sessile, very short and wide, with transverse carina at the crest ( Fig. 5 ); T2 wider than long; S2 strongly angled on basal portion.

Male. Unknown.

Type material. Holotype, ♀, ‘ COSTA RICA: Heredia Pr. \ La Selva Biol. Sta. \ 3 Km S Pto. Viejo \ 10º26’N 84º01’W’ . Paratypes, 1♀, same as holotype; 1♀, ‘ COSTA RICA: Heredia \ Est .. Biol. La Selva 50- \ 150m, 10º26’N 84º01’W \ iii-iv-1993 \ P. Hanson & C. Godoy’ ; 1♀, COSTA RICA Heredia \ 3 km S. Puerto Viejo \ OTS- La Selva , 100m \ ii-iii.1993 P. Hanson’ ; 1♀, ‘ COSTA RICA, Puntar. \ Golfo Dulce, 24 Km W \ Piedras Blancas , 200 m \ III-V/1989, Hanson’ ; 1♀, ‘ PARAGUAY: San \ Pedro. Rio Ypane \ Cororo \ XII.1983 \ M. A. Fritz’.

Etymology. The specific epithet is dedicated to Giordani Soika, a remarkable scientist who studied the solitary and social Vespidae .

Distribution. Costa Rica (Heredia, Punta Arenas); Paraguay ( San Pedro).

Figures

FIGURES 1 – 6. Ancistroceroides soikai sp. nov., holotype, ♀. 1. Habitus, lateral view; 2. Habitus, dorsal view; 3. Head, frontal view; 4. Posterior face of propodeum; 5. T 1, dorsal view; 6. T 2, dorsal view. Scale bar = 1 mm.