122 CHARLES ROBERTSON. 



nearly as long as two following together, mesonotum closely aiul finely punctured, 

 disc of metathorax short, longitudinally striate at hase. Wings dusky at apex 

 and in marginal cell, second submarginal cell shorter than first, narrowed one- 

 half towards marginal, receiving first recurrent nervure about one-third from 

 base, the second at apex, or the second uniting with second transverse cubital ; 

 nervures and stigma black, tegulse testaceous, except in front. Legs with pale 

 pubescence, the tibial scopa whitish ; first segment of abdomen shining, sparsely 

 and finely punctured, the othei-s densely punctured, apical margins of segments 

 depressed and dull testaceous, anal fimbria inclining to fuscous. Length 6 7 mm. 



% . — Resembles the female, the sparse pubescence and tomentum above inclining 

 to ochraceous; clypeus, generally a spot above, a spot on each side of face, pro- 

 cess of labrum, middle of mandibles, tubercles usually, knees, anterior tibiiB in 

 front and base and apex of others, and tarsi, except two or three apical joints, 

 yellow ; clypeus anteriorly and process of labrum with a narrow black edge ; 

 third joint of antennae longer than fourth, flagellum sometimes testaceous be- 

 neath in the middle, al)domen with segments 2-4 depressed and minutely rough- 

 ened at base, elsewhere more shining and more sparsely punctured than in female. 

 Length 5-6 mm. 



Hab. — Illinois; seven females, twenty-three males. The sexes 

 were taken in copula. 



i'alliopsis ruilbeckia? 9 . — Black, shining, slender, pubescence thin 

 and pale, except on mesothorax above, where it is close and ochraceous ; clypeus 

 and sides of face rather coarsely and sparsely punctured, elsewhere more closely 

 and finely punctured ; middle of labrum presenting a subquadrate space which is 

 concave, shining, finely striate at base and emai'ginate apically; mandibles ru- 

 fous; antenniE black, third joint about as long as two following together; meso- 

 notum and scutellum shining, finely and evenly punctured, clothed with rather 

 close pubescence; metathorax bare, shining, disc short, striate basally. Wings 

 subhyaline, second submarginal cell shorter than first, narrowed nearly one-half 

 towards marginal, receiving first recurrent nervure about one-third from base and 

 the second near apex, nervures and stigma dark, tegulge testaceous. Legs black- 

 ish, anterior and middle knees with a yellow spot, basal joint of hind tarsi paler, 

 the scopa whitish. Abdomen shining, especially first segment, which is almost 

 impunctate, other segments finely and closely punctured toward base, broad apical 

 margins smooth, piceous, anal fimbriae ochraceous. Length 6 mm. 



'J, . — Resembles male of preceding, but is distinguished from it, and all other 

 male Calliopsis known to me, by its clypeus presenting a broad median de])ression, 

 which is impunctate, or nearly so. Length 5-8 mm. 



Hab. — Illinois; twenty-three females, forty-two males. 



Callioi>!4is labrosiis 9 • — Black, shining, thinly pubescent ; face with 

 shallow jiunctures of medium size, rather sparse, except above ajntenuse ; labrum 

 presenting a median facet, which is strongly narrowed to an apex, which is trun- 

 cate or rounded ; third joint of antennae nearly as long as two following together, 

 flagellum testaceous beneath, at least the middle joints; mandibles, sometimes 

 the clypeus anteriorly, and the labrum entirely testaceous, the mandibles more 



