Gelastagathis frosti Sharkey

Sharkey, Michael J. & Chapman, Eric G., 2015, The Nearctic genera of Agathidinae (Hymenoptera: Braconidae) with a phylogenetic analysis, illustrated generic key, and the description of three new genera, Zootaxa 4000 (1), pp. 49-72 : 61-62

Gelastagathis frosti Sharkey NEW SPECIES

( Fig. 4 )

Description ♂. Length. 5.3 mm. Color: Testaceous except for terminal metasomal segments black, antenna melanic, wings infuscate, propodeum melanic. Head: in frontal view 1.7 x wider than high (measured from top to apex of clypeus). Antennal flagellum with 27 flagellomeres. Mesosoma: Notaulus complete, smooth anteriorly, weakly pitted posteriorly. Hind tibia with 1 apical peg. Propodeum entirely rugose with two irregular longitudinal carinae defining a medial region. Metasoma: First median tergite with weak longitudinal striae. Second median tergite with a curved transverse groove.

Material examined. Known only from the holotype ♂: USA, Massachusetts, Natick, Sept. 1935, C.A. Frost. Approximately 42° 17’N, 71° 20’W and 50 m. elevation. ( USNM).

Etymology. Named after the collector of the type specimen.

Figures

FIGURE 4. Gelastagathis frosti holotype ♂. a. lateral habitus. b. dorsal habitus. c. wings. d. propodeum and first metasomal tergum, arrows point to longitudinal carina on propodeum and striae on tergum. e. head frontal view, showing thickened mandible. f. mesoscutum, showing notauli.