1864.] 141 



10. Ich. montanus. n. sp. 



Blue-black ; wings fusco-hyaline : Central area of metathorax large, quad- 

 rate, transverse. 



Male. — Entirely blue-black ; the head and thorax having a slight 

 tinge of green, rather densely punctured ; antennas almost as long as 

 the body, black, opaque. Scutellum convex, deeply impressed in front 

 and connected with the mesothorax on each side by a sharp carina; 

 metathorax densely and confluently punctured, the elevated lines well 

 defined, the central area large, quadrate, transverse. Wings fusco- 

 hyaline, darkest on the apical margin and having a slight violaceous 

 reflection ; nervures black ; areolet 5-angular. Legs blue-black, the 

 inner side of the anterior tibife and tarsi and a spot at the tips of the 

 anterior femora, whitish. Abdomen elongate, rather slender, densely 

 punctured ; basal segment somewhat shining, deeply tinged with blue, 

 bilineated and finely aciculate; apical segments smoother. Length 7 

 lines; expanse of wings 11 g lines. 



Female. — Resembles the male, except that the color is more bluish, 

 the antennae are shorter and the 11th to 14th joints above are white ; 

 the ovipositor is yellowish and exserted about one line. 



Hah. — Rocky iMountains, Colorado Territory. 3 % and 2 9 specimens. 



11. Ich. pedalis. n. sji. 



Black: wiugs fusco-hyaline: legs fulvous: central area of metathorax trans- 

 verse. 



Male. — Black, densely punctured ; antennae brown-black, more than 

 half the length of the body. Thorax shining; scutellum rather convex, 

 punctured shining; metathorax scabrous, opaque, the elevated lines 

 well defined, the central area rather large, transverse, the posterior 

 margin bent inwards. Wings fusco-hyaline, with a slight violaceous 

 reflection; nervures and stigma black; areolet 5-angular or subtrian- 

 gular. Legs fulvous, their coxae, trochanters and the extreme tips of 

 the posterior tibiae, black. Abdomen opaque, densely punctured ; basal 

 foveae of the second segment deep and oblique. Length 6^ lines; ex- 

 panse of wings 11,'; lines. 



Hah. — Rocky Mountains, Colorado Territory. 



12. Ich. Ormenus, n. sp. 



Black, shining : wings subhyaline : legs fulvous: central area of metathorax 

 large, elongate-subquadrate. 



Female. — Black, closely punctured, clypeus shining, with a deeply 



