Ceranisus udnamtak, S. Triapitsyn, 2005

Triapitsyn, Serguei V., 2005, Revision of Ceranisus and the related thrips-attacking entedonine genera (Hymenoptera: Eulophidae) of the world, African Invertebrates 46, pp. 261-315 : 295-297

Ceranisus udnamtak sp. n.

Figs 40, 41

Etymology: The specific name is a reversed spelling of the type locality, Katmandu.

Diagnosis: This species is easily recognisable from all other described species of Ceranisus by the unique combination of the following morphological characters: F1 of female antenna much longer than broad, a little longer than F2; forewing with a very long postmarginal vein (much longer than stigmal vein) and a distinct bare area along posterior margin behind base of marginal vein, demarcated anteriorly by a sinuate row of setae; and a yellow metasoma. It is somewhat similar to female of C. menes with a completely yellow metasoma, from which female of C. udnamtak can be easily distinguished using the characters indicated in the key above.

Description: Female (holotype). Head and mesosoma brown, metasoma and appendages yellow or very light brown.

Antenna ( Fig. 40 ) with scape slender, 5.25 x as long as wide; pedicel a little longer than F1; funicle long, F1 much longer than wide, a little longer than F2 and with 1 sensillum, F2 slightly wider than F1 and also with 1 sensillum; clava slightly longer than funicle, 2.0 x as long as wide, its distal segment about 1.5 x longer than basal claval segment, both with several sensilla.

Mesosoma almost as long as metasoma; pronotum, mesoscutum, scutellum, and axillae with faint cellulate sculpture; midlobe of mesoscutum with 2 pairs of setae. Forewing ( Fig. 41 ) about 2.5 x as long as wide; longest marginal setae 1/4 maximal width of forewing; disc hyaline, with numerous, short setae, more or less uniformly setose behind and beyond base of marginal vein except for a conspicuous bare area along posterior margin behind base of marginal vein, demarcated anteriorly by a notably sinuate line of setae; postmarginal vein very long, much longer than stigmal vein. Coxae faintly sculptured.

Ovipositor occupying 0.65 length of gaster, not exserted; ovipositor length/metatibia length ratio about 1.2:1.

Measurements (n=1, holotype). Body: 916.Antenna: scape: 127; pedicel: 55; F1: 42; F2: 38; clava: 85. Forewing: 736/291; longest marginal seta: 70. Ovipositor: 270.

Male. Unknown.

Holotype: Female on slide, labelled: 1. “ NEPAL: Katmandu, 4500 ft., 19-XI-1961, E. S. Ross, D. Q. Cavagnaro Cal. Acad. Sci. Coll. Canada balsam, Cal. Acad. Sci. Coll.”; 2. (red) “ Ceranisus udnamtak S. Triapitsyn HOLOTYPE ^”. [ CAS].

Host: Unknown.

Comments: The holotype specimen is slide-mounted rather poorly (laterally, with both hind wings folded); flagellum of one antenna is missing.

Figures

Figs 40, 41. Ceranisus udnamtak sp. n., female (holotype): (40) antenna, (41) forewing. Scale lines = 0.1 mm.