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BRUES: PARASITIC HYMENOPTERA. 45 



length of the body, about 36-jointed; scape rounded: pedicel two-thirds the 

 length of the first flagellar joint which is three times as long as thick; second 

 to fourth twice as long as wide, the following one and one-half times for a 

 considerable distance after which they become transverse some distance 

 before the apex. Head 

 rather flat, i. e. strongly 

 transverse. Thorax 



smooth or very faintly 

 punctate. Metathbrax 

 incompletely areolated al- 

 though there are indica- 

 tions of some carinae. 

 Abdomen very slender. 

 Legs normal, long and 

 moderately slender. 

 Wings elongate, narrow, 

 hyaline, with brown stigma FlG - 31 -— Cryptus delineatus, sp. nov. Type, 



and venation; stigma 



broadly lanceolate; radial cell quite narrow, the first section of the radius 

 three-fourths as long as the second; areolet regularly pentangular; disco- 

 cubital vein but slightly bent at the middle where there is a stump of a vein; 

 submedian cell barely longer than the median; discoidal nervure broken below 

 the middle. 



Type.— No. 2130, M. C. Z., Florissant, Col. (No. 11,962, S. H. 

 Soudder Coll.). 



One specimen, quite well preserved, and very clearly a male of 

 Cryptus, sensu lato, even to the peculiar velvety surface of the antennae 

 which is shown with wonderful fidelity. 



PlMPLINAE. 



Two species of Acoenites have been described, one from Radoboj 

 by Heer ('49) and another from Florissant by Brues (:06). Although 

 the abdominal petiole of the first species is much more strongly con- 

 tracted than in species of the present day, there seems to be nothing 

 to exclude it from location here. 



Leptobatopsis ashmeadii, sp. nov, (Fig. 32.) \ 



Female. Length 9 mm. Light colored, probably light brownish yellow in 

 life, like species of Paniscus. Wings hyaline. Antennae slightly shorter than 

 the body, slender and of nearly even thickness; joints toward the base two and 



