1864.] 168 



41. Ich. consimilis, n. sp. 



Black : face, scutellum and legs in part, yellow: abdomen brick-red; wings 

 subhyaline ; central area of metathorax subquadrate, moderate. 



Mcde. — Head black, the face below the antennae, frontal orbits, cly- 

 peus, mandibles except base and apex, and the palpi, yellow ] antennae 

 two-thirds the length of the body, black, the basal joint beneath with 

 a broad yellow line. Thorax black, finely, closely and uniformly punc- 

 tured ; tegulre, a narrow sutural line before the wings abbreviated be- 

 fore and suddenly dilated behind, and a short line beneath the wings, 

 yellow ; scutellum convex, entirely pale yellow ; a small, transverse, 

 subobsolete, yellowish line behind the scutellum ; metathorax black, 

 rather finely rugose, the elevated lines well defined ; the central ai-ea 

 subquadrate, rounded in front and obtusely emarginate behind. Wings 

 subhyaline, slightly tinged with fuscous and with a brassy gloss ; ner- 

 vures fuscous, testaceous at base, stigma fulvous ; areolet 5-angular or 

 subtriangular. Legs yellow ; coxae, trochanters, anterior and interme- 

 diate femora exteriorly except tips, the posterior femora entirely, as 

 well as the tips of the posterior tibias, black. Abdomen brick-red, 

 darker towards the apex ; basal segment black, distinctly bilineated, 

 finely aciculate ; basal fovea3 of the second segment deep and somewhat 

 oblique, and between which the surface is finely aciculate ; second and 

 following segments opaque, very finely and densely punctured ; ventral 

 segments stained with yellowish, with a more or less dusky spot on each 

 side especially towards the tip. Length T^ lines ; expanse of wings 

 121 lines. 



Hah. — Rocky Mountains, Colorado Territory. 



Closely resembles Icli. vinidentus, but besides the difference of color, 

 the scutellum is much more convex and the sculpture of the metatho- 

 rax is different, the central area being smaller and difiierently shaped. 



42. Ich. juxtus, n. sp. 



Black : face, scutellum and legs in part, yellow ; abdomen dull ferruginous : 

 wings subhyaline; central area of metathorax large, transversely subreniform. 



Male. — Head black, the face beneath the antennae, frontal orbits, 

 clypeus, mandibles except base and apex, and the palpi, yellow ; an- 

 tennae more than half the length of the body, black, the basal joint 

 beneath yellow. Thorax black, finely punctured ; a sutural line before 

 the wings, tegula) and a line beneath the wings, pale yellowish ; a sub- 



