264 AMEPaCAN HYMKNOPIEKA. 



petiolate; stigma lauceolate, the niarjjiiial nervure uniting on basal portion", 

 metalhorax and two basal segments of abili)men scabrous; basal segment sessile, 

 but little widened at apex. 



One specimen from Colorado (type, coll. Amer. Ent. Soc). 



S€OL,OBATE$li Gravenhorst. 

 (Ichneumonologia Europsea. ii, 357, 1829.) 



Polished, wings large and reaching beyond the apex of the abdo- 

 men, areolet wanting ; antennae large, filiform, longer than body. 

 Legs moderate, hind tibije and basal part of hind tarsi thickened. 

 Head large, subspherical and with emarginate vertex ; clypeus spined 

 at the tip. Metathorax without cariuse, spiracles oval. Abdomen 

 sessile, short, subcompressed toward apex. Tarsal claws strongly 

 pectinate. [This genus has until recently been placed with the 

 Ophioniuse, but it shows much greater affinity here.] 



Scolobates crassitarsus Grav., Icbn. Europ. ii, 360. 

 Prionopoda canadensis Harrington, Can. Ent. xxiv, 98. 

 9 . — 8 mm. Head black, except face, mouth-parts and cheeks, which are fer- 

 ruginous ; thorax black; abdomen black, except venter and segments 2 and 3 

 above, which are rufous: coxse, trociianters, base of femora, hind tarsi and their 

 tibife except base black, rest of legs ferruginous; autennse reddish brown ; wings 

 hyaline ; the whole body is highly polished and covered with long brown pile. 



Four specimens from Ottawa, Canada (Harr.), Franconia, N, H. 



(Mrs. Slosson), Philadelphia (Chas. Johnson) and Texas. 



LATHROLKSTES Foerster. 

 (Synopsis der Fam. und Gatt. der Ichueumonen, 1868.) 



Polished, finely shagreened, pilose. Head somewhat inflated, ex- 

 cavated behind and without carina between vertex and occiput; 

 clypeus separated, or partially so and elevated, apex rounded. Meta- 

 thorax polished and without carina; parapsidal grooves indicated 

 anteriorly. Abdomen subsessile, depressed in h , subcompres.sed 

 toward apex in 9 ; ovipositor plainly exserted, slender and curved 

 upward. Legs ra'ther slender ; tibial spurs short ; tarsi strongly 

 pectinate toward base. A^^iugs moderate, areolet present. 



Lathrolestes uasoiii n. sp. 



'^.— 6 mm. Black, with face, broad anterior orbital lines, month-parts, lower 

 half of cheeks, pectus, posterior margin of prothorax, tegulse, triangular spot on 

 margins of mesonotum, lower mesopleurse, narrow apical margins of four last 

 abdominal segments and four anterior coxse and trochanters, pale yellow ; antennae 

 brown, yellowish beneath ; legs rufous, with posterior tarsi and apex of their 

 tibite dusky; wings hyaline, nervures and stigma brown, paler at base; stigma 

 triangular, broad; areolet large, petiolate; head rather large and inflated behind 

 the eyes; lateral basal corners of third abdominal segment rufous. 



