148 E. T. CRESSON. 



other species by having the entire clypeus, most of mandibles and two 

 basal joints of antenntie beneath, white ; and by the minute, almost ob- 

 solete, areolet of anterior wings. 



17. Pimpla rufopectus, n. sp. — 9- — Black, shining; clypeus entirely, spot on 

 mandibles, palpi, anterior orbits — dilated at summitrtwo dots beneath insertion 

 of antennai, tegulse, lino before, short line beneath, tip of scutellums, dot on 

 e^ch side of nietathorax behind, anterior coxte, four anterior trochanters, tibifs 

 and tarsi, and venter except lateral black spot on each segment, white ; most 

 of pleura, four posterior coxte, all the femora, and posterior trochanters, yellow- 

 ish-red ; posterior tibiae and tarsi whitish, spot near base of tibise, their apical 

 fourth and tarsal tips, black ; scutellum tinged with rufous; anteunse brown, 

 j)ale at base beneath ; wings hyaline, nervures blackish, base and apex of stig- 

 ma pale, areolet obliquely subquadrangular; head and thorax shining; abdo- 

 men with close, distinct punctures, apical margin of segments smooth and 

 polished, lateral swellings prominent; first segment short and deeply excavated 

 at base which is smooth and polished ; mesothorax prominent anteriorly; me- 

 tathorax short, rounded above and truncate behind, sides with whitish pubes- 

 cence ; ovipositor short. Length 5 lines. 



lf(iJ>. — Pennsylvania. 



18. Pimpla scriptifrons, Walsh, MS. — 9- — Black, shining; clypeus except 

 ajjex, narrow anterior orbits — broader at summit, palpi, tegulce, line before, 

 transverse spot beneath and tip of scutellums, white ; antennae brown, paler 

 beneath, whitish at base beneath; wings hyaline, iridescent, stigma pale 

 brown, whitish at base, areolet subtriangular, slightly oblique ; legs slender, 

 yellowish-red, anterior coxae, all the trochanters, tips of intermediate femora, 

 and their tibiae except apex, white; posterior tibiae white, with the apical 

 fourth and a narrow annuius near base, black; intermediate tarsi white, the 

 joints tipped with black, posterior pair black, with base of the joints white, 

 apex of posterior femora black, edged with white ; thorax smooth and polished; 

 pleura beneath, before intermediate coxie, reddish ; abdomen shining, closely 

 and con fluently punctured, broad apical margin of segments smooth and 

 polished, a median transverse depression on second and following segments, 

 which are constricted at base; anteunae slender. Length 4 lines. 



Ilab. — Delaware; Illinois. Smaller and more slender than riifo- 

 pectus, to which it is closely allied. 



20. Pimpla nolanda, n. sp. — J.^Black, shining; palpi', tegulte and short 

 line before, wliite; aiitemue short, black, apex reddish; a broad line on each 

 side of mesothorax, scutellum, postscutellum, pleura except broad upper mar- 

 gin, and legs entirely, sanguineous; wings hyaline, nervures and stigma brown, 

 areolet subtriangular, slightly oblique; abdomen long, with close, distinct 

 punctures; ovipositor nearly as long as body; venter white, with lateral black 

 spots. Length 4 — 5 lines. 



%. More slender, face black; nietathorax with a red spot on each extreme 

 lateral margin; anterior coxa3 and trochanters white; posterior tibiae and tarsi 

 fuscous, the ft)rmer with a white stripe behind, and the tarsi white at base of 

 first joint; abdomen sometimes tinged with brown, the lateral swellings more 

 prominent than in J. Length 3i — 5 lines. 



Ilah. — Penn. ; New Jersey; Colorado. Easily distinguished by 

 the handsome ornamentation of the thorax. 



