Orthogonalys parahova Smith & Tripotin, 2012

Smith, David R. & Tripotin, Pierre, 2012, Trigonalidae (Hymenoptera) of Madagascar, Journal of Hymenoptera Research 24, pp. 1-25 : 12-13

Orthogonalys parahova Smith & Tripotin sp. n. Figs 29 34

Holotype.

Male, labeled "Madagascar, Fianarantsoa, Parc National Ranomafana, Belle Vue at Talatakely, elev. 1020 m, 15-28 May 2003," " 21°15.99'S, 47°25.21'E, coll. M. Irwin, R. Harin’Hala, California Acad. of Sciences, Malaise, secondary tropical forest, MA-02-09C-61" (CAS).

Paratype.

"Madagascar, Fianarantsoa, Miandritsara Forest, 40 km S Ambositra, 20°47.56'S, 47°10.54'E, 5-19 March 2005," "California Acad. of Sciences, coll: M. Irwin, R. Harin’Hala, Malaise trap, in low altitude rainforest, elev. 825 m, MA-29-11" (1 ♂, CAS).

Description.

Female. Unknown.

Male

( Fig. 29 ). Length, 10.0 -11.0 mm. Antenna black; antennomeres 11 at apex, 12-15, and base of 16 white. Head white with vertex and upper frons black, black extending to dorsal margins of eyes and medially to near antennal sockets ( Figs 31, 32 ); clypeus white. Mesosoma orange with posterior lateral angles of pronotum white and metascutellum yellow; pleura and sterna lighter orange than dorsum. Legs orange with hind tibia and tarsus black. Wings hyaline with veins and stigma black. Metasoma with tergite 1 mostly black, tergites 2-4 orange, tergite 5 mostly black, and tergites 6 and 7 white, narrow lateral edges of tergites white and sternites mostly white; genitalia with gonostipes brown and paramere white.

Antenna with 28-29 antennomeres. Head from above slightly emarginated behind; head behind eyes about 0.8 × eye length ( Fig. 32 ). Anterior width of mesoscutellum about 1.2 × medial length; shallow, median longitudinal groove on posterior half ( Fig. 30 ). Metascutellum 2 × broader than long. Mesonotum shiny with closely set punctures, mostly separated by shiny interspaces 1 - 2 × puncture diameters. Propodeum with irregular transverse carinae at center, more reticulate on sides ( Fig. 30 ). Paramere of male genitalia about 1.8 × as long as broad, broadly rounded at apex ( Fig. 33 ), subequal in length to gonostipes (as in Fig. 28 ).

Etymology.

From the species name " hova " with the Greek prefix " para " meaning resembling Orthogonalys hova .

Remarks.

This species is similar to Orthogonalys hova , and initially we considered the two males as large specimens of that species. However, the following differences justify its recognition as a distinct species: antenna with only about 4 central antennomeres completely white; clypeus white; genae almost completely white; posterior angles of pronotum white; mesoscutellum with anterior width about longer than medial length and with distinct median furrow in posterior half ( Fig. 30 ); and paramere of male genitalia longer, about 1.8 times as long as broad and rounded at its apex ( Fig. 33 ). The parameres resemble the long, rounded parameres of Orthogonalys maculata .

Figures

Figures 29 - 30. Orthogonalys parahova, holotype male. 29 Dorsolateral view. 30 Mesosoma and metasoma, dorsal view.

Figures 31 - 34. Orthogonalys parahova, holotype male. 31 Head, front view. 32 Head, dorsal view. 33 Apex of abdomen and male genitalia, lateral view. 34, Mandibles.

Figures 23 - 28. Orthogonalys maculata, male. 23 Mesosoma, dorsal view. 24 Head, front view. 25 Head, dorsal view. 26 Antenna. 27 Apex of abdomen and genitalia, lateral view. 28 Genitalia, dorsal view.