308 HYMENOPTERA. 



This species has been recorded from Illinois by Nason 

 (1906, p. 8) but the six specimens found in the Nason col- 

 lection (Illinois State Laboratory of Natural History) are 

 not referable here but represent several species {striaiicorne, 

 consobinus) . 



6. Polynenia gTaculus species nova. 



Normal position. 



7l/a/^.— Length, 1.10 mm. Moderately large for the genus. 



A species characterized by having the broadest fore wings yet ob- 

 served in a species of the genus ; the fore wings are shorter and more 

 rounded, less graceful and nearly as in the broad-winged species of 

 Gonatocerus (e. g. dolichocerus) . 



General color jet black, only the knees, tips of tibiae and proximal 

 two tarsal joints being pallid, the trochanters and abdominal petiole 

 brownish ; wings hyaline excepting proximad, caudad of the venation, 

 where there is slight fumation. Venation black. 



Fore wings less slender than usual, shorter and broader, less grace- 

 ful than usual, the discal ciliation arranged in about thirty-five longi- 

 tudinal lines of cilia at the widest blade portion, moderately dense, 

 fine ; the marginal cilia only moderate in length, the longest only some- 

 what over a fourth the length of the greatest wing width ; venation 

 usual. Posterior wing moderately broad, subacuminate but only ob- 

 tusely pointed at tip, the discal cilia absent proximad (nearly the 

 proximal half), distinct, consisting of the usual paired lines along each 

 margin (which here are somewhat away from the margins) and in the 

 midlongitudinal line of the blade, distal half, several irregularly 

 placed cilia, some paired; longest marginal cilia (caudal margin) not 

 quite twice the length of the blade's greatest width, becoming paler 

 and shorter proximad. Abdomen much shorter than the thorax. 

 Legs slender, the proximal tarsal joints of the caudal legs long and 

 slender, equal to the combined length of the distal three ; strigils 

 present. Tibial spurs single, moderately short but rather strong. 



Antennae usual for this sex, 13-jointed, the flagellar joints all longi- 

 tudinally striate, rather finely so ; scape short but about twice the size 

 of the pedicel ; the latter with one lateral margin incised, the other 

 convex, short ; first funicle joint about thrice the length of the pedicel 

 and about a fourth or fifth shorter than the following joint ; remain- 

 ing joints subequal, the club joint shortest of the flagellum, ovate, 

 very slightly shorter than the proximal funicle joint. 



From 1 specimen, f-inch objective, 1-inch optic, Bausch 

 and Lomb. 



Female. — Unknown. 



Described from a single male specimen from the collec- 



