98 AMERICAN HYMENOPTERA. 



" Abdomen shining, impunctate, covered with a pale close pile ; black, 

 the sides from the third segment obscure rufous ; sheath of ovipositor 

 black. Legs in greater part fuscous covered with a pale pile ; the 

 femora inclining to rufous on the lower side ; the fore legs almost entirely, 

 and the middle legs in front, pallid testaceous." 



I have not seen specimens of this species, and can only 

 give Cameron's description without remarks. 



Type. — 9 . Location unknown.* 



Distribution. — The type of this species was taken at Ori- 

 zaba, Mexico, but there are no other records of capture, 

 hence the range is unknown. 



Ophiopterus striatifrons Cam. 

 Ophiopterus striatifrons Ca.mevor\., Biol. Centr. Amer., Hym., Vol. 

 I, p. 297 (cf 9), Cuidad in Durango, 



Mexico 1886. 



Dalla Torre, Cat. Hym., Ill, p. 180 1901. 



" " Szepligeti, Gen. Ins., Hym., 34me Fasc, 



pp. 37, 215 1905. 



Black ; mouth, eyes broadly, tegulce, anterior coxcz, and base of ab- 

 domen flavous, feet rufous ; wings very short, hyaline, nervures black. 



Length, 9-10 mm. 



Antennae about half the length of the abdomen, microscopically 

 pilose; fuscous towards the base of the flagellum, the basal joint of the 

 scape yellow on the underside. Head black ; the mouth, mandibles, 

 palpi, orbits (broadly on the inner, narrowly on the outer, side) and the 

 face (except a triangular black mark), yellow ; face and vertex finely 

 punctured ; the front transversely, and the head behind at the sides 

 longitudinally and strongly, striated ; an indistinct keel runs down from 

 the ocelli and another from each antenna down the face. 



Thorax black ; a broad line on each side of the mesonotum in front 

 close to the pronotum, the tegulae and the scutellum in the center, 

 yellow ; mesonotum strongly transversely striated in front, punctured 

 in the middle, aciculated behind ; prothorax obliquely striated at the 

 sides, except in the middle, which is shining and impunctate ; prono- 

 tum roughly transversely striated ; mesopleura (except below the wings) 

 and sternum rugose ; scutellum punctured, the lateral keels stout ; meta- 

 thorax coarsely reticulated. Abdomen twice the length of the head and 

 thorax united ; the greater part of the basal half yellow, fourth and fifth 

 segments rufous ; wings not half the length of the abdomen. 



Legs reddish, the four anterior coxae and trochanters yellow ; the 



* Not in the British Museum, but a MSS. states that it is " in the 

 Vienna Museum." 



