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bulletin: museum of comparative zoology. 



and rather slender, particularly toward the tips; joints all apparently rather 

 short, about one-half longer than wide. Thorax punctulate like the head, 

 the metanotum with only the faintest indications of carinae and no distinct 

 areas. Abdomen long and rather slender, its surface regularly roughened and 

 sparsely punctate ; first segment with a strong lateral and several less evident 

 irregular longitudinal carinae. First segment one-third longer than the 

 second; fourth equal to the second; third somewhat shorter; first to third 

 with pale bands apically. Ovipositor one-half as long as the abdomen, its 



sheaths thickly hairy. Legs 

 moderately stout; in part 

 ferruginous; coxae, trochan- 

 ters, and perhaps the base of 

 the hind tibiae of this lighter 

 color. Wings hyaline, ner- 

 vures and stigma piceous; 

 stigma and marginal cell long 

 and narrow; areolet rather 

 large, oblique, subsessile 

 above; discocubital cell rather short, the discocubital vein very strongly 

 arcuately bent down basally; submedian cell considerably longer than the 

 median, the transverse median nervure slightly oblique. 



Fig. 39. — Pimpla senilis, sp. nov. Type. 



Type.— No. 2160, M. C. Z., Florissant, Col. (No. 11,418, S. H. 

 Scudder Coll.). 



Pimpla rediviva, sp. nov. (Fig. 40.) 



Female. Length 8 mm. Black, the apex of the abdomen brownish and 

 the sutures between its segments pale. Head and thorax dull, but scarcely 

 at all punctulate. Antennae not preserved. Metanotum areolated, the 

 pleural and basal and middle lateral areas visible in the side view of the speci- 

 men. Spiracle large, rounded oval. 

 Abdomen short, strongly punctate 

 basally, the first segment with some 

 rather small, but sharp carinae 

 toward its base; second segment 

 fully as long as the first; third, 

 fourth, and fifth growing shorter. 

 Ovipositor preserved only at its 

 base; legs not preserved. Wings 

 hyaline, with pale fuscous stigma 

 and nervures; stigma and marginal 



cell rather short, the former distinctly triangular in outline. Areolet mod- 

 erately small, broadly sessile above; discocubital cell long; discocubital vein 



Fig. 40. — Pimpla 

 Type. 



rediviva, sp. nov. 



