1922] Hymenopterous Genus Harpagocryptus and its Allies. 101 



ON THE HYMENOPTEROUS GENUS HARPAGOCRYP- 

 TUS AND ITS ALLIES.^ 



By Charles T. Brues. 



In the October issue of the Proceedings of the Hawaiian 

 Entomological Society for 1908 Bridwell ('08) described a 

 peculiar genus of Hymenoptera from Queensland, which he 

 named Harpagocryptus and placed in the Family Dryinidse. 

 Harpagocryptus differs from all other genera of Dryinidse except 

 Dryinopsis Brues ('10)" in having the antennae of the female 

 12-jointed, but Bridwell was influenced in placing the genus in 

 this family by the habits of the larva which forms a sac on the 

 side of the abdomen of crickets after the fashion of certain well 

 known Dryinids. 



About a year later ('10) the present writer described the 

 genus Algoa, based on an anomalous insect from Cape Colony 

 which he was unable to place with certainty in any family. At 

 the time I did not compare it with Bridwell's description of 

 Harpagocryptus, as I did not think the South African insect 

 could be a member of the Dryinidie. The two are, however, 

 closely related, and I regarded them as synomous until recently, 

 when Mr. Nathan Banks of the Museum of Comparative 

 Zoology, gave me a specimen of a subapterous Hymenopteron 

 from Long Island, New York, belonging to the same group. 

 After a careful comparison of the two species before me with 

 Bridwell's description, I have come to the conclusion that three 

 closely related genera are concerned. I find also that I have a 

 male of Algoa heterodoxa which is entirely wingless and distin- 

 guishable from the female only by the presence of two spines at 

 the apex of the abdomen, and of thirteen antennal joints, while 

 the femora are much more slender than those of the female. 



^Contribution from the Entomological Laboratory of the Bussey Listitution, Harvard 

 University, No. 205. 



-This genus is similar in many respects to Methoca and apparently still more like Andreas 

 Ashm. (03b), although I know the latter only from the description. Unfortunately the male is 

 unknown and may or may not prove to be of the Thynnid type. Inasmuch as the systematic 

 position of Methoca itself must still be considered as somewhat doubtful, I am unable to form a 

 satisfactory opinion concerning the afifinities of Dryinopsis. 



