20 E. T. CRESSON. 



abdominal segment, the second, third and fourth segments except band or 

 spots at base, and sides of fifth and sixth segments, yellow or honey-yellow; 

 venter more or less pale. Length .35 inch. 

 Hah. — Nevada, (Morrison). 



Strongylogai^ter rubripes.— 9- — Black, shining; labrum, base of 

 mandibles, palpi, posterior angles of prothorax, tegulse and tips of coxse, dull 

 whitish; wings smoky hyaline, nervures black, base of stigma pale, lanceolate 

 cell with oblique cross-line, under wing without middle cell; femora, tibiae 

 and base of anterior tarsi pale ferruginous; abdomen entirely black. Length 

 .32 inch. 



Hah. — Colorado, (Morrison). 



Strongylogaster politus Provancher. — 9- — Black, shining; palpi, 

 upper posterior angles of prothorax, tegulse, tips of coxae, trochanters, four 

 anterior femora except line above, tips of posterior pair, four anterior tibiae, 

 and base of posterior pair, all whitish or yellowish- white; wings hyaline, 

 iridescent, nervures and stigma black, lanceolate cell without cross-line, under 

 wing with two middle cells; tips of intermediate tibiae, the posterior pair 

 except base and all the tarsi fuscous; abdomen depressed, slightly widened 

 medially, apical margin of segments 2 — 5 above narrowly pale. Length 

 .25 inch. 



Hah. — Canada, (Provancher). 



Strongylogaister soriculatipes Provancher.— 9. -Long, cylindrical, 

 shining black, or piceous; clypeus, labrum, palpi, lateral angles of prothor£.x, 

 tegulae, knees and base of tibiae, white; wings hyaline, nervures black, stigma 

 and costal nervure fuscous, lanceolate cell without cross-line, under wing with 

 two middle cells; most of legs, sides of abdominal segments one and two and 

 base of venter, honey-yellow; apical two-thirds of posterior tibiae and their 

 tarsi blackish. Length .33 inch. • 



Hah. — Canada; Illinois. 



TEXTHREDO Leach. 



Tenthredo obscuripeunis. — 9 -—Ferruginous; head large, broader 

 than thorax, clypeus deeply emarginate; clypeus, labrum, palpi, and base of 

 mandibles white; antennae as long as head and thorax, black, two basal joints 

 ferruginous, first joint of flagellum one-fourth longer than second; sides of 

 prothorax, pectus and base of venter sometimes more or less black; wings 

 uniformly fuscous. Length .40 — .45 inch. 



Hah. — Nevada, California, (H. P]dwards, Morrison), Closely allied 

 to ocanthus Norton. 



Teuthredo seievola. — 9- — Black, shining; anterior orbits, sometimes 

 interrupted above antennae, face, clypeus, labrum, lower two-thirds of cheeks, 

 mandibles except tips, palpi, most of prothorax, scutellum, large subtriangular 

 mark on pleura, spot above posterior coxae, tegulae, coxae, trochanters, femora 

 except black line above, narrow posterior margin of basal plates, spot on sides, 

 lateral margin of abdomen above and most of venter, all pale yellow; winga 

 slightly tinged with yellowish, nervures blackish, base of stigma and costal 

 nervure fulvous; tips of posterior tibiae, all the tibiae and tarsi more or less and 



