J. CHESTER BRADLEY 113 



DESCRIPTIONS, RECORDS AND NOTES ON NORTH AMERICAN 



NYSSONIDAE 



(HYMENOPTERA) 



BY J. CHESTER BRADLEY 



Cornell IJnwersitij, Ithaca, N. Y. 



Gorytes (Hoplisoides) splendidula new species 



Pale red (vinaceous rufous); posterior margin of pronotum, tubercles, 

 scutellum, narrow apical margin of first dorsal and second ventral and broad 

 a[)ical band on second dorsal segments, buff (marguerite yellow), the scutellum 

 a little deeper shade of yellow; there is an underlying yellow tone to the 

 postscutellum, and the tibiae are slightly yellowish; the sutures of the apical 

 segments of the male are a little dusky, and in the male paratype the last 

 four abdominal segments are very dark red, almost black; the female lacks 

 ths buff on the pronotum, tubercles and second ventral segment, but has a 

 buff spot on the fifth dorsal segment. Clothed with short appressed white 

 pubescence, producing a white bloom, in places silvery sericeous. Wings 

 hyaline, the fore-wing with a sharply defined fuscous spot occupying the 

 marginal, second and third submarginal and apex of the third discoidal cells, 

 another at the apex of the second discoidal, and a small spot at the apical 

 angle of the medial cell. Length, 8 mm. 



d^. Form robust, Nysson-like. Head broad, the eyes nearly parallel 

 within; distance from front ocellus to clypeus no longer than the width of 

 the front; front, vertex and clypeus uniformly but not conspicuously punc- 

 tate; vertex with a slight ridge behind and laterad of the ocelli; antennae 

 slender, the segments long, the third segment considerably longer than the 

 fourth; flagellum slightly uneven, but neither crenulate nor dentate. 



Mesonotum with well separated punctures. Mesopleura obscurely punc- 

 tured, a weak carina separating them from the mesosternum; epicnemial 

 area poorly defined, separated by a weak carina; scutellum and postscutellum 

 with polished surface and few punctures; dorsal enclosure of propodeum 

 striate and sharply marked off. 



Abdomen rather closely punctate, especially at apex; second ventral seg- 

 ment slightly convex, not prominent. 



9 . The segments of the flagellum more elongate than in the male, the 

 first being longer than the distance between the hind ocelli; tarsal comb 

 present; pygidium margined, forming an almost equilateral triangle, its sur- 

 face with well separated punctures, in other respects like the male. 



Habitat. — Californl\: Brawley in the Imperial Valley, Aug- 

 ust 9, 1914, two males, one female, (the author). 



TRANS. AM. ENT. SOC, XLVI. 



