THE CANADIAN ENTOMOLOGIST. 351 



of the front about opposite the enlarged ventral ends of the walls of 

 the pentagonal area ; the frontal crest, broadly and deeply broken at 

 middle ; the median fovea distinct, V-shaped, the basal angles ex- 

 tended narrowly to the antennal foveas ; the hypoclypeal area 

 tubercular, broader than long ; the postocular area about a half 

 wider than long ; the vertical portion of the antennal furrows narrow, 

 shallow, linear, converging in front ; the interocular furrow distinct 

 at its outer ends, wanting at middle ; the antennae with the first and 

 second segments together , three-fourths the length of the third, the 

 third segment about twice as long as the fourth, the fourth and fifth 

 subequal, the fifth nearly twice as long as the sixth, the sixth, 

 seventh, eighth and ninth subequal in length, the ninth narrower 

 than the eighth, bluntly pointed at apex ; the dorsum of the thorax 

 polished, sparsely sericeous ; the wings slightly infuscated, the veins 

 and stigma black ; front wings with the free part of R 4 about sub- 

 equal in length with the free part of R 5 , the free part of R 4 straight 

 and the radial cross-vein bowed, the greatest length of the cell R 4 

 one and one-third the length of the greatest length of the cell R 5 ; 

 the legs finely sericeous ; the posterior metatarsus shorter than all 

 the following segments together, the third segment one-fifth shoiter 

 than the second, and the fourth one-half the length of the third ; 

 the saw-guides straight above, convex below, obliquely truncated at 

 apex, and bluntly rounded to a point above, the ventral margin and 

 the apex fringed with setae. Length, 4 mm. Habitat : Columbia, 

 Missouri. C. R. Crosby, collector loricata, n. sp. 



7. Hypoclypeal area flat, convex, somewhat elevated adjacent to the 

 middle fovea ; body black, with the front and middle legs below the 

 knees, the basai half of the posterior tibise and metatarsus, white ; 

 the walls of the pentagonal areas distinct, low on the middle of the 

 front, their ventral ends strongly dilated, forming a prominent 

 frontal crest ; the V-shaped furrow deep, with slanting walls and 

 narrowly flattened along the crest of the ridge : the ocelhr basin 

 longer than broad ; the crest of the walls of the pentagonal area 

 parenthesis-like, curving laterally at their ventral ends ; the walls of 

 the pentagonal area continued to the antennal fovea ; the puncture 

 on each side of the front opposite the dorsal end of the middle 

 fovea ; the frontal crest broad, deeply and narrowly broken at 

 middle \ the median fovea distinct, more or less triangular, situated 



