BRUES: PARASITIC HYMENOPTERA. 39 



cocubital cell with a rather long stump of a vein at its middle; submedian cell 

 a trifle longer than the median. 



One specimen. 



Type.— No. 2119, M. C. Z., Florissant, Col. (No. 2879, S. H. 

 Scudder Coll.). 



Ichneumon cannoni, Cockerell sp. nov. 



"Length 12 mm. or slightly, over; anterior wing about 8.75 mm.; wings 

 clear, nervures and stigma black or dark brown; head and thorax black, 

 scutellum not pallid; abdomen brown, shaped as is usual in the genus, with 

 broad pallid sutural bands, which (at least the first two) broaden medially, 

 making a large rather diamond-shaped mark; no protruding ovipositor; 

 antennae stout, strongly curled, ordinary, dark brown or black, with the 

 middle of the flagellum broadly pallid (? an accident of preservation), width 

 of flagellum 290 micra; legs ferruginous; venation normal; origin of basal 

 nervure a little to the basal side of the transversomedial ; transversomedial 

 a little oblique, but outer side of second discoidal cell much more so; basal 

 nervure distinctly curved; areolet small. Wing measurements in micra; 

 depth of stigma 340; depth of marginal cell 6S0; stigma on marginal cell 

 646; length of marginal cell 2210; length of areolet 323 ; length of basal nerv- 

 ure (not allowing for curve) 935; length of transversomedial (not allowing 

 for slight curve) 408; origin of basal nervure to origin of first recurrent 901." 



"Florissant, in the Miocene shales. In the collection at the Capitol 

 Building at Denver, in the custody of the State Historical and Natural 

 History Society; collector unknown. Named after Mr. Cannon of 

 Denver, in recognition of his palaeontological researches in Colorado" 

 (T. D. A. Cockerell MS. March 5, 1908.) 



Ichneumon dormitans, sp. nov. 



Sex? Length about 17 mm. Black or dark brown, the abdomen ferrugi- 

 nous. Wings distinctly infuscated. Head rather large, antennae not pre- 

 served. Metathorax areolated, although the areas are not preserved well 

 enough to make out clearly. Abdomen ferruginous, the petiole darker or 

 black. The sutures are constricted somewhat giving the abdomen an appear- 

 ance similar to that of the genus Trogomorpha, but I believe this is due princi- 

 pally to the fossilization. Legs but little preserved, but apparently dark 

 ferruginous in color, wings distinctly infuscated; areolet obliquely pentangu- 

 lar, rather large. Marginal cell long, the first section of the radius considera- 

 bly more than half as long as the second ; insertion of transverse median vein 

 not discernible; discocubital vein without a stump of a vein, evenly curved. 



