276 HYMENOPTERA. 



Oopliilus Enock (1909, p. 458, pi. xv, figs. 1-6) = Gonatocerus 



Nees. 



An examination made of a specimen of the type species of 

 this genus shows that it is a Gonatocerus of somewhat pecu- 

 liar habitus but no more so than that of rivalis Girault or 

 maga Girault ; moreover, it is wrongly described for the tarsi 

 are not 4-jointed but 5-jointed. Mistaken in regard to tarsal 

 structure, doubtless the author was thus mislead, The spe- 

 cies is exactly as described with the exception of the essen- 

 tial difference just noted and the following : The ovipositor 

 is not very long, that is to say, is not exserted for any length, 

 but the valves are exserted as in rivalis and maga, that is 

 distinctly, but not to any great extent (not to a length equal 

 to the whole or a half that of the abdomen, for instance), in 

 reality not even for a fifth of the length of the abdomen. 

 The wings are those typical for Gonatocerus and similar to 

 those in the broader winged species — dolichocertis Ashmead 

 for instance. The antennae are typical with the exception 

 that the scape is minutely and densely serrated along its 

 ventral edge (not the club as Enock states) as in some spe- 

 cies of Polynema {bifasciatipenne Girault, enockii Girault, 

 howardii Ashmead).* The species thus falls in the group 

 containing rivalis and maga because of its shortly, though 

 distinctly, exserted ovipositor and may be distinguished at 

 once from either by its broad fore wings and longer distal 

 funicle joints of the antennae. Like the two American species 

 it is black in color, marked slightly with yellow or pallid and 

 has their comparitively long, conic-ovate abdomen, which, 

 however, is not yellow at base ; only the antennal pedicel, 

 the proximal three or four tarsal joints, the knees, trochanters 

 and tips of the tibiae are yellowish. In the fore wing, the 

 marginal vein is usual in length, not lengthened as in doli- 

 chocerus ; these wings bear about forty longitudinal lines of 

 discal cilia at the widest blade portion but they are distinctly 

 narrower than those of latipennis, the discal ciliation denser. 

 Both wings are hyaline. 



* This serration occurs in the males of other species of Gonatocerus, 

 some of the North American species, but I cannot give specific in- 

 stances of it just at present. It also occurs in Anaphes. 



