ART. 20. ICHNEUMOIs^-rLIES OF TRIBE PANISCINI GUSHMAN. 29 



This series shows considerable variation in most of the characters 

 mentioned above. In size the females vary from 11 to 16 mm. and 

 the males the same. 



The color varies from bright to dull brownish testaceous. The 

 latter color which occurs only in Kansas specimens may be due to 

 the method of killing or preservation. A few specimens have the 

 head entirely testaceous. 



In the most weakly sculptured individuals the striae of the pro- 

 podeum become obsolete and are replaced b}^ shallow transversely 

 arranged punctures. 



PANISCUS CAVIVERTICALIS, new species. 



Very closely related in its short antennae and femora to Irevicornis 

 Cushman, but differing as follows: 



Female. — Length 10 mm.; antennae 8 mm. 



Frons as broad as face; vertex rather deeply concave between 

 ocelli ; clypeus (malformed ?) very deeply emarginate with a strong 

 transverse elevation bordering the margin, more finely and densely 

 punctate; occipital carina very nearly wanting; flagellum hardly 

 attenuate at apex, only 38-jointed (in hrevicornis there are from 46 

 to 52 joints depending largely on the size of the insect) ; propodeal 

 spiracles broadly oval; second intercubitus nearly straight, second 

 recurrent interstitial; nervellus broken at upper fourth; hind femur 

 nearly two-thirds as long as tibia; second tergite little longer than 

 broad at apex, less than two-thirds as long as first, first hardly three 

 times as long as broad at apex. 



Color as in hrevicornis but brighter and with face and frons medi- 

 ally testaceous. 



Type-locality. — Platte Canyon, Colorado. 



Type.— Ca.t. No. 25986, U.S.N.M. 



One specimen, which may be an abnormal specimen of hrevicornis. 



PANISCUS CLYPEATUS, new species. 



From the other species with short femora and broad temples this 

 species is distinct in its almost entire lack of scutellar carinae and 

 its strongly transversely elevated clypeus. 



Female. — Length 12 mm.; antennae (broken, but from the pro- 

 portions of the remaining joints probably about as long as the body). 



Head large; temples buccate, nearly as broad as eyes, sparsely 

 punctate; face much broader than long and about a third broader 

 than frons, parallel-sided, elevated medially, sparsely punctate, the 

 interspaces faintly shagreened; clypeus very short and broad, strongly 

 transversely elevated, apex reflexed and broadly but strongly 

 arcuately truncate; frons polished, flat; ocelli rather small, distant 

 from eyes; eyes rather shallowly emarginate; antennae slender, 

 middle flagellar joint somewhat less than twice as long as thick. 



