ART. 15. REVISION OF ICHNEUMON-FLIES MUESEBECK. 49 



3. MICROPLITIS COLORADENSIS, new species. 



Very close to yevflexus^ from which it differs in the head and 

 thorax being much more coarsely roughened and dull ; in the median 

 area on the second abdominal plate being triangular; in the granular 

 and opaque posterior coxae ; and in the fore and middle coxae and the 

 apex of the hind coxae being testaceous. 



Male. — Length 3.8 mm. Face rugulose and opaque, with a polished 

 median carina extending from the base of the antennae to the base of 

 the clypeus ; vertex, temples, and cheeks ruguloso-punctate and dull ; 

 mesoscutum opaque, the parapsidal grooves rather well indicated, 

 broad, and rugulose, the lobes of the mesoscutum much more weakly 

 roughened; scutellum convex, coarsely roughened and dull, meso- 

 pleurae ruguloso-punctate anteriorly and below the rather broad 

 coarsely crenulate longitudinal furrow, highly polished above it; 

 propodeum rugoso-reticulate, with a prominent median longitudinal 

 carina ; stigma broad, about as long as the metacarpus ; radius 

 straight, perpendicular to the anterior margin of the stigma and about 

 twice as long as the first transverse cubitus; posterior coxae granular 

 and opaque ; inner spur of middle tibiae distinctly shorter than the 

 middle metatarsus; inner spur of posterior tibiae half the length of 

 the posterior metatarsus; abdomen a little shorter than thorax; first 

 dorsal abdominal plate slightly broader at apex than at base and a 

 little more than one and one-half times as long as broad at apex, 

 finely rugulose, except in the middle at base ; second abdominal tergite 

 long, narrower at base than at apex, emarginate at apex, and provided 

 with two longitudinal impressed lines medially, which converge pos- 

 teriorly and enclose a smooth and shining triangular area; suture 

 between second and third tergites not distinct medially ; the areas on 

 either side of the triangular median portion of the second tergite 

 opaque and somewhat roughened; third and following tergites 

 smooth and polished. Black; labrum, mandibles, and labial palpi 

 blackish; maxillary palpi fuscous; antennae entirely black; tegulae 

 and wing-bases testaceous; wings hyaline, very slightly fuliginous at 

 apex, the veins and stigma brown; legs, including fore and middle 

 coxae, testaceous; posterior coxae black on basal half, testaceous 

 apically; posterior femora blackish on apical half above; posterior 

 tibiae below and at apex, and the posterior tarsi, inf uscated ; abdomen 

 entirely black. 



Tyi^e loGoIity. — Colorado. 



Type.—C2.t^o. 24001, U.S.N.M. 



Described from three male specimens labeled " Colo. 2082, Collection 

 C. F. Baker." 



4. MICROPLITIS PERPLEXUS, new species. 



Closely resembles coloradensis^ but differs in having the mesoscutum 

 and scutellum less coarsely roughened and more shining, in the pos- 



