Gasteruption oliveirai, Macedo, 2011

Macedo, Antonio Carlos Cruz, 2011, A revision of Gasteruption Latreille (Hymenoptera: Gasteruptiidae) in the Neotropical Region 3030, Zootaxa 3030 (1), pp. 1-62 : 41-43

Gasteruption oliveirai n. sp. ( Figs. 18 , 27f )

Etymology. The epithet for this species is in honor of Dr. Sebastião José de Oliveira (in memoriam), Fundação Instituto Oswaldo Cruz.

Diagnosis. Differs from other Neotropical species by the combination of the following characters: metacoxa without striae ( Fig. 27f ), or with ill-defined ones; propleuron shorter than pronotum; mesoscutum areolate rugose ( Fig. 18c ); occipital carina relatively wide dorsally and laterally ( Fig. 18b ); mesepisternum ( Fig. 18d ) and propodeum areolate; ovipositor sheath longer than metasoma, and dark brown, with apex yellow brown ( Fig. 18e ); and the fore wing discal cell present.

Description. Female ( Fig. 18e ). Length: 11.3 mm (11.2–11.5 mm) (n=2); ovipositor sheath length 0.90 (0.80– 1.01) × body length.

Head. Subtrapezoidal in dorsal view, as long as wide ( Fig. 18a ), punctulate; mandible pre-apical tooth distinct; malar space short, almost separated from gena; posterior ocellus inserted at the level of upper eye margin; occipital carina relatively wide dorsally and laterally ( Fig. 18b ). Head length 1.25 (1.24–1.25) × eye length; eye length 16.25 (16.00–16.50) × malar space; distance from posterior ocellus to occipital margin 1.87 (n=1) × distance between posterior ocelli; 1 st flagellomere 1.29 (n=1) × as long as scape, 1.60 × as long as pedicel, 0.60 × as long as 2 nd flagellomere. Color: dark brown.

Mesosoma. Propleuron with irregular striae to rugulose; pronotal process distinct; pronotum with ventral and dorsal lobes rugulose or areolate, posterior lobe imbricate, area between lobes with wide crenulate depression; mesonotum rounded in lateral view ( Fig. 18d ); mesoscutum areolate rugose ( Fig. 18c ); mesoscutelum rugulose; mesepisternum rugulose or areolate dorsally and areolate ventrally; mesepimeron scrobiculate; metapleuron areolate, ventral region with a reduced smooth (or rugulose) portion; propodeum areolate, longitudinal carina indistinct ( Fig. 27f ); metacoxa without (or with ill-defined) striae. Mesosoma (excluding propleuron) 1.74 (1.67–1.80) × as long as high; propleuron 1.57 (1.55–1.59) × longer than its largest wide, 0.90 (0.85–0.94) × pronotum length; metacoxa 2.32 (2.28–2.36) × as long as wide; metatibia 4.48 (4.34–4.61) × as long as wide, 1.37 (1.36–1.39) × as long as femur, 3.39 (3.35–3.43) × as long as 1 st tarsomere. Fore wing discal cell subtrapezoidal; hind wing with 3 hamuli, not equidistant. Color: dark brown; fore and middle legs with coxa black, trochanter, femur and tibia red brown, tibia with a yellow longitudinal stripe, 1 st tarsomere yellow, remaining yellow to red brown; hind leg with coxa, trochanter, femur and tibia dark brown, subbasal portion of tibia yellow, 1 st tarsomere yellow, with base dark brown, remaining tarsomeres yellow.

Metasoma. Imbricate, 2.18 (2.13–2.23) × as long as mesosoma; subgenital sternun notched, Y-shaped; ovipositor sheath 1.60 (1.43–1.76) × as long as metasoma. Color: dark brown, with T3-T4 yellow brown posteriorly; ovipositor sheath dark brown, with apex yellow brown.

Male. Similar to female; hind tarsus entirely dark brown.

Geographic distribution: Brazil (Rio de Janeiro).

Material examined. Holotype, female ( FIOC): BRAZIL: Rio de Janeiro: Teresópolis , 16.VIII.1913.

Paratypes: BRAZIL: Rio de Janeiro: Teresópolis , 8.VIII.1913, 1♀ ( FIOC); Teresópolis, 1♂ ( FIOC) .

Figures

FIGURE 18. Gasteruption oliveirai. a: head in dorsal view; b: head in lateral view; c: mesonotum in dorsal view; d: mesosoma in lateral view; e. habitus. Scale bar: 1.0 mm.

FIGURE 27. Propodeum and metacoxa in dorsal view. a: Gasteruption bertae; b: G. bispinosum; c: G. helenae; d: G. huberi; e: G: kaweahense; f: G. oliveirai; g: G. rafaeli; h: G. visaliae. Scale bar: 1.0 mm.