47 



rather more, the latter three or more times as long as wide, fifth 

 wider than the fourth, but of nearly equal length. Pronotum 

 irregularly punctured, the punctures of unequal size ; mesonotum 

 smooth and shining, very sparsely punctured, the suture between 

 It and the almost or quite impunctate scutellum, deep and con- 

 sute: propodeum finely transversely rugose, pilose, and subim- 

 pressed medially on its posterior portion. Legs shortly, but dis- 

 tinctly, pilose ; the tarsi pallid ; wings distinctly, but not deeply 

 Infasciate. the stigma yellow. Abdomen smooth and polished, 

 impunctate or almost so. Length about 5 mm. 



Male black, the antennae, clypeus for the most part, mandibles 

 except the teeth, antennae, front and middle tibiae testaceous or 

 ferruginous, apical joint of antennae more or less black, the tarsi 

 pale, whitish. Head coarsely rugose-punctate, pilose like the 

 thorax ; the antennae with all the joints elongate and for the 

 most part not dififering much in length, the apical joint acuminate 

 and one and- a half times the length of the preceding, the third 

 four times as long as broad. Mesonotum and scutellum shining, 

 sparsely punctured, propodeum short, irregularly rugose, or with 

 close reticulation. Wings hyaline, stigma blackish. Abdomen 

 small and narrow, subclavate. Length about 4 mm. 



HAP). Nogales, Arizona; collected on oak and cocoons ob- 

 tained in August and September; the female bred in October 

 (2466). I l)red male and female (under the same number) in 

 Honolulu at the end of February from cocoons obtained m Sep 

 tember at Xogales. It is parasitic on a large green Jassid on 

 Oak. 



2. Dcinodryinus qncrcicola sp. nov. 



Form, size and colour like that of the preceding species, from 

 which it is easily distinguished by the colour of the antennae, the 

 fourth to the tenth joints being 'dark, black or blackish, though 

 the more basal of these are yellow- tinged, the third joint is also 

 more or less infuscate. The extreme apex of the middle tibiae, 

 the extreme base and apex of the hind ones, and the extreme 

 base of the hind tarsi, are dark. 



The general sculpture is for the most part like that of D. par- 

 adoxus, but that of the head is quite dififerent, since its surface 

 is smooth with onlv verv fine and scattered punctures, and m no- 

 wise rugose. Onlv for a very short space, immediately above 

 the antennae, is the sculpture dense and somewhat as m the pre- 

 ceding species. 



