Orthogonalys brevis
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Ordo: Hymenoptera
Familia: Trigonalidae
Genus: Orthogonalys
Name
Orthogonalys brevis Smith & Tripotin sp. n. – Wikispecies link – ZooBank link – Pensoft Profile
Holotype
male, labeled “PROVINCE TOAMASINA: Montagne d'Anjanaharibe, 18.0 km 21° NNE Ambinanitelo, elev 470 m, 8–12 Mar 2003, 15°11'18"S, 049°36'54"E”, “California Acad. of Sciences, coll. Fisher, Griswold et al., Malaise trap, in rainforest, collection code BLF8011" (CAS).
Paratypes
Same data as for holotype (1 ♀, 1 ♂, CAS, USNM); “PROVINCE ANTSIRANANA: Marojejy Nat'l Park, 5 km W Manantenina village, Camp Mantella, 28 April – 7 May 2005, 14°26.29'S, 49°46.44'E”, “California Academy of Sciences, coll: M. Irwin, R. Harin'Hala, Malaise trap, low altitude rainforest, elev. 490 m, MA-31-20" (1 ♂, CAS), same except “26 Sept.- 4 Oct. 2005, MA-31-32" (3 ♂, CAS, USNM); same except “28 Aug. – ll Sept. 2005, MA-31-29" (1 ♂, USNM). “PROVINCE ANTSIRANANA: Parc National de Marojejy, Manantenina River, 26.6 km 35° NNW Manantenina, 11–14 Dec 2005, 14°26'06"S, 049°45'36"E," “California Acad. of Sciences, coll. B. L. Fisher et al., elev. 775 m, Malaise trap, rainforest, collection code BLF 13385" (3 ♂, CAS, USNM, PT). “PROVINCE ANTSIRANANA: Parc National de Marojejy, Manantenina River, 28.0 km 38° NE Andapapa, 8.2 km 333° NNW Manantenina, el 450 m, 12–25 November 2003," “14°26'12"S, 049°46'30"E, California Acad. of Sciences, coll. B. L. Fisher et al., Malaise trap in rainforest, BLF 8723" (1 ♂, CAS).
Description
Female (Fig. 1). Length. 7.0 mm. Similar to male except for penultimate metasomal segment and sheath black, and genitalic characters.
Male
(Fig. 2). Length. 5.0–8.0 mm. Antenna black, antennomeres 9–16 and sometimes 17 white. Head white with vertex and gena black, black extending anteriorly as V-shaped mark in front of ocelli; broad black median stripe on clypeus (Figs 4, 5). Mesosoma pale orange. Legs pale orange with hind tibia and tarsus darker to black. Wings hyaline, veins brown, costa more orange toward base; stigma brown to orange with anterior margin black. Genitalia brown.
Antenna with 28 antennomeres. Head from above slightly concave behind, distance behind eyes about 0.7× eye length (Fig. 5). Metascutellum broader than long, anterior breadth about 1.3× medial length; metascutellum about 2.0× broader than long (Fig. 3). Dorsum of mesosoma shiny, with widely spaced small punctures farther apart than 2–3× puncture diameters. Propodeum coarsely reticulate (Fig. 3). Male genitalia with paramere short, 1.6× broader than long, broadly rounded at apex, about 0.5× length of gonostipes (Figs 6, 7).
Distribution
Madagascar: Antsiranana, Toamasina.
Etymology
The specific name is from the Latin brevis, referring to the short parameres of the male genitalia.
Remarks
The short parameres of the male genitalia place this species close to Orthogonalys seyrigi; however, the parameres of Orthogonalys brevis are shorter and broader than long whereas those of Orthogonalys seyrigi are about as broad as long (Figs 6, 39) The color of Orthogonalys brevis is entirely different than in Orthogonalys seyrigi and more similar to that of Orthogonalys hova with the almost entirely orange mesosoma and metasoma. The color of the head is consistently different than in other Orthogonalys species with more white across the frons, which is not interrupted with black, except sometime for a very narrow medial line, and the entirely black gena (Figs 4, 5). The metasoma of Orthogonalys brevis is almost entirely orange with only apical segment white and the penultimate segment mostly black.
Original Description
- Smith, D; Tripotin, P; 2012: Trigonalidae (Hymenoptera) of Madagascar Journal of Hymenoptera Research, 24: 1-25. doi
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