410 PROCEEDIN'GS OF THE ACADEMY OF 



entirel}^ black, rest of legs yellow. Middle of face protuberant ; 

 antennae as long or longer than bod}', slender, tapering much at 

 apex ; niesothorax smooth and polished, closely punctured in 

 front; scutellum convex, punctured ; metathorax rugose, coarsely 

 and transversely so on disk; wings narrow, anterior pair without 

 areolet ; legs rather slender, tarsi incrassate, much flattened, claws 

 pectinate ; abdomen smooth and polished, depressed at base, sub- 

 compressed at tip ; ovipositor about one-third as long as abdomen, 

 compressed and sword-shaped, sheaths slender, pubescent, dilated 

 at tips. Length 4^-5 lines. 



Orizaba. (Sumichrast, No. 63.) 



2. Meniscus mexicanus, n. sp. 



9 Diflers from crassitarsus as follows: The antennae are 



longer; the upper margin of prothorax is white, a large quadrate 

 whitish spot on disk of mesothorax ; metathorax black, with a 

 triangular mark on basal middle, the apex and flanks whitish ; 

 mesothorax uniforml}', closely punctured ; apex of wings dusky ; 

 legs yellow, spot at base of four posterior coxae, the posterior pair 

 within, stripe on four anterior femora behind, the posterior pair 

 except base before, tips of their tibi, and the four anterior tarsi 

 more or less, black; all the tarsi slender; claws pectinate; abdo- 

 men obscure yellowish-white, first segment, except base which is 

 whitish and extends down the middle for a short distance, the 

 second segment, except a large square mark on basal middle and 

 the apical margin, and a fascia across middle of third segment, 

 margining the sides anteriorly, black ; apical segments more or 

 less stained with dusky ; ovipositor shorter and less robust. 

 Length 5^ lines. 



Cordova. 



3. Meniscus? alternatus, n. sp. 



. Lemon-3'ellow, opaque, abdomen shining; spot on vertex, 

 covering ocelli and extending to base of antenna^, occiput, the 

 antennw, except scape beneath and very narrow annulus on fla- 

 gelluui, medial transverse line on prothorax, three longitudinal 

 lines on mesothorax, the medial one broad and entire, the others 

 abbreviated before, tip of scutellum, postscutellum, scutellar 

 region, basal suture of metathorax, a transverse medial band, the 

 extreme apex, a curved line on pleura anteriorly, a medial spot on 

 each side, spot on outside of middle coxae, the posterior pair 



