BRUES: PARASITIC 1 1 YMENOPTERA. 103 



1 )escribed from one specimen sent by Professor Coekerell, A104. 

 Type in the Amer. Mns. Nat. Hist. 



This is a very extraordinary species on account of the very large 

 triangular second cubital cell, but as it resembles otherwise the present 

 genus closely, I have not thought it necessary to consider the character 

 of generic value, although if found in living forms it would undoubtedly 

 be so regarded. 



Oligoneuroides, gen. nov. 



Antennae 25 or 26-jointed, probably 26. Wing venation much as in Oligo- 

 neurus Szepligeti, except that the first and second transverse cubital veins 

 are present and the first discoidal cell is separated from the costa by a petiole 

 over one-third the length of the basal vein. 



Type. — 0. destructus, sp. nov. 



This peculiar form is undoubtedly a member of the Microgasterinae 

 and on account of its multiarticulate antennae perhaps related to the 

 Brazilian genus Oligoneurus Szepligeti. In wing venation, however, 

 it is quite different and is I think worthy of generic rank. 



Oligoneuroides destructus, sp. nov. (Fig. 86.) 



Female. Length 4 mm. Black, with reddish abdomen. Antennae and 

 legs black or very dark. Basal joints of flagellum of antennae rather long, 

 two to three times as long as thick; apically becoming more nearly quadrate 

 and much smaller. Surface of 

 head and thorax smooth and shin- 

 ing. Mesonotum apparently with 

 parapsidal furrows which meet far 

 before the scutellum. Abdomen 

 short, globose, ovipositor at least 



two-thirds its length and possibly 



„ T . . . , Fig. 86. — Oligoneuroides destructus, 



longer. Wings large and broad; sp nov Type 



radial vein abbreviated, but dis- 

 tinct for a considerable distance beyond the transverse cubitus. Submedian 

 cell quite distinctly longer than the median; discoidal vein broken at its 

 posterior tip, leaving the third discoidal cell open at the tip. 



Type.— No. 2365, M. C. Z., Florissant, Col. (No. 857, S. H. 

 Scudder Coll.). 



Described from one specimen seen in dorsal view. It resembles 

 Microgaster primordialis Brues in color and size, although otherwise 

 far removed. Later a second specimen with reverse was sent in a lot 

 received from Professor Coekerell, it agrees perfectly in structure and 

 color, but the wing venation is not so well preserved. 



