CHARLES W. HOOKER. 97 



Ophiopteriis niger Cam. 

 Ophiopterus niger Cameron, Biol. Centr. Amer., Hym., Vol. I, p. 

 296, n. 2, Hurchihuitle, Mexico; original de- 

 scription, cf 1886. 



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



" Szepligeti Gen. Ins., Hym., 34rae Fasc, p. 37, 



n. 4, listed 1905 



Black ; wings nearly fuscous . c? . 



Length, 16 mm. 



"Head semiopaque, covered with a depressed pile; a longitudinal 

 keel running down from the ocelli, and from it short striations proceed 

 on either side ; thorax finely punctured, a smooth, shining, impunctate 

 space beneath the wings ; pronotum at the sides obliquely striated : 

 mesopleurae at the edges longitudinally striated ; mesonotum in front 

 of the scutellum reticulated ; metathorax coarsely reticulated ; abdo- 

 men three times the length of the thorax, shining, impunctate ; the 

 three basal segments cylindrical, narrow, the second segment the 

 longest." 



I have not seen the type or a specimen of this species and 

 can only give Cameron's description. 



Type. — &. British Museum. 



Distribution. — The type came from Hurchihuitle, Mexico, 

 and I can find no other records of capture. 



Ophiopterus fuscipes Cam. 

 Ophiopterus fuscipes Cameron, Biol. Centr. Amer., Hym., Vol. I, 



p. 296. n. 1, Orizaba, Mexico 1886. 



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



" " Szepligeti, Gen. Ins., Hym., 34«e Fasc, p. 



37, n. 3, listed 1905. 



Black ; face, mouth, eyes, pronotal lines, tegulce, scutellum and base 

 of abdomen flavous ; feet fuscous, pale in front; wings hyaline, ner- 

 vures black ; antenncB short, pale yellow beneath. 



Length, 12 mm. 



' ' Densely covered with silvery-white pubescence , densest on'the pleurae . 

 Head finely punctured ; antennse short, not much longer than the head 

 and thorax together, the scape pale yellow beneath. Pronotum obli- 

 quely, the mesonotum transversely and very strongly, striated, the 

 striations widely separated ; a shining impunctate space below the 

 hind wings on the mesopleurae ; the rest strongly longitudinally striated , 

 running at the edges into reticulations ; scutellum shining, nearly im- 

 punctate ; metathorax coarsely reticulated and leaving a gradual slope 

 to the apex. 



TRANS. AM. ENT. see, XXXVIII. (13) 



