NATURAL SCIENCES OF niTLADELPIIIA. 401 



apical segments smooth and polished, the former excavated at 

 base ; ovipositor about half the length of the body. Lengtli 1^ 

 lines. 



Cordova. This is an elegant species, with the apical spots at 

 tip of anterior wings very conspicuous and brilliant. 



9. Pimpla azteca, n. sp. 



9. Honey-yellow, abdomen tinged with ferrnginous ; face, 

 thorax beneatli, and base of anterior legs yellow ; antennte black, 

 yellowish at base beneath ; mandibles at tips, narrow basal and 

 apical margins of metathorax, tips of four anterior tarsi, and the 

 posterior pair except extreme base, basal margin of second, third, 

 and fourth segments of abdomen more or less, and the ovipositor, 

 black ; wings hyaline, with a large black spot at tip of anterior 

 pair, nervures and stigma black. . Antennte as long as body, 

 slender, setaceous, with joint 3 as long as 4 and 5 together; 

 mesothorax subtrilobed, smooth and shining; metathorax smooth 

 and rounded; abdomen smooth and shining, elongate, fusiform, 

 with lateral blister-like elevations on segments 2-5, first segment 

 a little longer than broad. Length 5^ lines. 



Orizaba. (Sumichrast, No. 66.) 



10. Pimpla marginipennis, n. sp. 



9. Bright lemon-yellow; tips of mandibles, antennae except 

 scape beneath, three stripes on mesothorax, anterior suture of 

 pleura, basal suture of metathorax, spot at extreme apex, inter- 

 mediate tarsi except basal joint, posterior pair except base of first 

 joint, narrow basal margins of abdominal segments 1-5 and 

 apical margin of first segment, all black or blackish ; mesothorax 

 polished; metathorax smooth, rounded above and polished; 

 wings golden-hyaline, apex broadlj^ fuliginous, slightly paler at 

 extreme tip, nervures and stigma black; legs robust, abdomen 

 impunctured ; ovipositor as long as first and second segments, 

 piceous, sheaths black. Length 6 lines. 



Cordova. 



11. Pimpla zonata, n. sp. 



9. Brown-black; head except stripe on vertex between sum- 

 mit of eyes, anotlier behind on occiput, scajjc beneatli, prothorax, 

 four stripes on mesothorax, teguhe, base of scutellum, postsou- 

 tellum, pleura, two large triangular marks on metathorax, flanks, 

 most of legs, base and apex of first abdominal segment, and narrow 



