34 



bulletin: museum of comparative zoology. 



margins. Meta thorax fully areola ted; areola of metanotum very small and 

 almost semicircular; basal and middle lateral areas complete and separated. 

 Abdomen subopaque, the sculpture of the postpetiole so delicate as to be 

 scarcely visible in the specimen. Abdomen rather short and broad, sharply 

 narrowed on its apical portion. Legs scarcely preserved, the hind femora 

 black and the tibiae of the hind legs dark basally with lighter apex and brown 

 tarsi which are weakly annulated with paler. Antennae long and slender, 

 flagellar joints two to four fully twice as long as thick; apical joints shorter, 

 but still longer than thick. Wings hyaline, the veins pale fuscous. Sub- 

 median cell in front wings considerably longer than the median, the transverse 

 median nervure very oblique; discocubital vein evenly curved and without a 

 stump of a vein ; areolet very narrow above, its side on the radial vein being 

 very short. Marginal cell long, the second section of the radius three times 

 as long as the first. 



Type — No. 2103, M. C. Z., Florissant, Col. (No. 10,955, S. H. 

 Scudder Coll.). 



This is a small species which seems to be referable to Thomson's 

 subgenus Bariehneumon, particularly on account of the configuration 

 of the metanotal areolae and comparatively stout antennae. 



Ichneumon pollens, sp. nov. (Fig. 22.) 



Length 19-21 mm. Large and robust, dark colored, with the abdomen 

 apparently more brownish and more or less distinctly banded with black on 

 the basal segment i anteriorly. Wings slightly infuscated. Antennae short 

 and stout, strongly narrowed apically and involute, the basal joints' from 

 one to one and one-half times as long as thick. Head thick, globular when 



seen from above and probably 

 rather short behind the eyes. 

 Scutellum with the usual later- 

 ally keeled depression at the 

 base and with the convex poste- 

 rior part apparently divided into 

 three parts by two longitudinal 

 impressed lines. Metathorax 

 with very large basal areola and 

 apparently completely areolated 

 on the sides. Abdomen rather slender, the petiole not broadly dilated at the 

 apex; sculpture of the postpetiole indistinguishable. Legs stout. Wings 

 normal, the areolet large and regularly pentangular. Cubitodiscoidal cell 

 very long, almost three times as long diagonally as the length of the basal 

 nervure. 



Fig. 22. — Ichneumon pollens, sp. nov. Type. 



Described from three specimens and one reverse. 



