BRUES: PARASITIC HYMENOPTERA. 53 



large, rounded oval. Abdomen short and stout; first segment carinated 

 and grooved laterally. Following segments shining and nearly smooth, 

 second and third of equal length. Ovipositor short, one-half as long as the 

 abdomen. Legs short and stout, entirely black. Wings hyaline, stigma 

 elongate and narrow, piceous, veins piceous; marginal cell rather short. 

 Areolet large, broadly sessile above; discocubital cell short, the discocubital 

 vein strongly curved; median and submedian cells of equal length. 



Type.— No. 2156-2157, M. C. Z., Florissant, Col. (No. 13,470 and 

 13,851 (reverse), S. H. Scudder Coll.). 



This is a very roughly sculptured species with short, stout legs and 

 antennae. 



PlMPLA REVELATA, Sp. 110V. (Fig. 38.) 



Female. Length 10 mm. Body black, or very dark colored; abdomen 

 beyond the first segment rufous or ferruginous. Antennae with only the 

 extreme base preserved ; they probably had long joints, the first flagellar appear- 

 ing about four times as long as thick and rather slender. Thorax above finely 

 punctate; metanotum considerably crushed, but several carinae are evident 

 indicating that it was areola ted at least in part. Abdomen as usual in Pimpla, 

 with slight indications of oblique 

 grooves on the median segments ; 

 second to fifth segments of 

 nearly equal length, each about 

 one-third wider than long. Legs 

 not visible in the type, but in 

 another specimen which most 

 probably belongs to this species, Fig. 38.— Pimpla revelata, sp. nov. Type. 



they are black with a broad pale 



ring on the hind tibiae, and with variegated tarsi. Wings hyaline, with pale 

 fuscous stigma and neuration. Stigma and marginal cell long and narrow; 

 areolet rather small, very oblique, with a long petiole above; discocubital 

 cell long, the discocubital vein slightly angled, and with a faint trace of a 

 stump of a vein; submedian cell considerably longer than the median, the 

 transverse median vein very oblique. 



Type.— No. 2158, M. C. Z., Florissant, Col. (No. 11,472, S. H. 

 Scudder Coll.). There is also a second specimen No. 2159, M. C. Z., 

 Florissant, Col., No. 2589, S. H. Scudder Coll.) which is most likely 

 the same species. 



Pimpla senilis, sp. nov. (Fig. 39.) 



Female. Length about 8.5 mm. Blackish; legs in part ferruginous, ab- 

 domen fasciate with pale bands. Head minutely punctulate; antennae long 



