146 E. T. CRESSON. 



8. Pimpla Ontario, n. sp. — %. — Black, shining ; face, clypeus, mandibles ex- 

 cept tips, palpi, spot on scape beneath, tegulaj and apex of scutellum and i)ost- 

 scutollum, white ; wings hyaline, iridescent, stigtna and veins blaokisli, tiie 

 former with a white spot at base, areolet small, 5-angular ; legs yellowish-red, 

 four anterior coxfe and trochanters beneath white, posterior tibiae and tarsi 

 blajkish, with a broad annulus on the former and basal half of first joint of the 

 latter, white; nielathorax shining, delicately punctured, with a short pale 

 pubescence, apex rounded; abdomen long, narrow, sub-cylindrical, closely and 

 delicately punctured; antennse long, subrobust, and of uniform thickness 

 throughout. Length 5 lines. 



Ilah. — Canada. 



9. Pimpla picticornis, n. sp. — %. — Black; face (except short longitudinal, 

 elevated black line on middle), clypeus, spot on mandibles, palpi, narrow anter- 

 iororbitsslightly interrupted before summit, scape beneath,te<;uli]e, spot beneath, 

 scutellum, postscutellum, tioo short lines on disk of mesothorax, anterior ooxse and 

 trochanters, and four anterior tibiaj and tarsi, white: anteunse long, setaceous, 

 brown above, pale luteous beneath, with incisures black; wings hyaline, iri- 

 descent, apex faintly clouded, stigma black, pale at base and apex, areolet 

 moderate, 5-augular; metathorax polished, not abrupt behind; legs pale yel- 

 lowish-red, i)Osterior tibice and tarsi blaclc, a rather narrow annulus near base 

 of former and base of first joint of latter, white; abdomen broader than usual 

 for the sex, very densely and confluently punctured, with a fine pale sericeous 

 pile; lateral swellings transverse. Length 4V lines. 



Hah. — ^Xew Jersey. Quite distinct from all other species by the 

 two short white lines on disc of mesothorax, and black spot on the face. 



10. Pimpla novita, n. sp. — 9- — Elongate, black, shining; large spot on each 

 mandible, palpi and tegulsB, white; metathorax shining, with an oval discal 

 depression, apex truncate; wings hyaline, iridescent, nervures and stigma 

 brown, areolet subtriangular ; legs short, rather slender, pale reddish-yellow, 

 four anterior trochanters whitish, posterior tibiae black, white at base and be- 

 neath nearly to apex, their tarsi black, basal half of first joint white; head and 

 thorax smooth and polished; abdomen subfusiform, shining, very minutely 

 sculptured, first segment with an oblong-ovate depression on disk; sheaths of 

 ovipositor with long, dense pubesence. Length 4 lines. 



ILib. — Massachusetts. Easily distinguished by the large white 

 spot on each mandible, and by the ornamentation of posterior tibia). 



11. Pimpla iudagatrix, Walsh, MS. — %. — Black, shining; palpi, scape be- 

 neath, teguliie, four anterior legs and posterior trochanters, white; four anter- 

 ior femora slightly tinged with yellow ; posterior legs yellowish-red, their 

 tibite white, with apex and narrow annulus near base, black; posterior tarsi 

 black, two basal joints white tipped with black; wings hyaline, iridescent, 

 nervures and stigma fuscous; areolet subrhomboidal; abdomen long, narrow, 

 linear, minutely punctured, subpubescent, sometimes the segments are brown- 

 ish or piceous at base. Length 2.V lines. 



llab. — Pennsylvania; Illinois. This is the smallest species so far 

 known to me, and is easily distinguished by the characters given 

 above. 



