NATURAL SCIENCES OF PHILADELPHIA. 411 



behind, their femora, tips of their tibiae, extreme tips of all the 

 tarsi, broad band on middle of first abdominal segment, and the 

 four following segments above, except broad apical margin, black ; 

 legs tinged with orange; wings j'ellowish-hyaline, faintly duskj^ 

 at tips, nervures and stigma honey-yellow. Antennae as long as 

 body and verj'- slender ; middle of face protuberant ; thorax finely 

 gx'anulated ; scutellum convex; metathorax rugulose; legs slender; 

 claws pectinate ; abdomen shining, delicately and closely punc- 

 tured, stigmatic tubercles prominent. Length 4-5^ lines. 

 Cordova. 



4. Meniscus 1 orbitalis, n. sp. 



9. Black; orbits, cl3'peus, spot on mandibles, annulus on 

 antennae, line on collar, slender furcate mark on mesothorax, tegulae, 

 spot beneath, scutellum, spot behind, spot on flanks of metathorax, 

 double spot above, large irregular mark on pleura, posterior tarsi 

 except base and apex, anterior coxae, spot at base of two posterior 

 pairs, base of first abdominal segment, apical margin of all the 

 segments, ver}'^ slender on fourth, pale lemon-yellow ; legs and 

 apex of abdomen beneath ferruginous; tips of four anterior tarsi, 

 tips of posterior trochanters, tips of their tibiae and base and apex 

 of their tarsi black ; wings h3^aline, iridescent. Opaque ; areolet 

 wanting; claws simple. Length 4-5^ lines. 

 Cordova. 



Genus PHYTODIETUS, Grav. 



1. Phytodietus gracilicornis, n. sp. 



% 9 Lemon-yellow, smooth and polished ; spot on vertex, 



covering ocelli, and confluent with a spot on occiput, antennae, 

 except scape beneath and broad annulus on flagellum, middle of 

 prothorax, dilated laterally, mesothorax, except two spots in front 

 and a square one on the disk, scutellar region, base of metathorax 

 irregularly, and dilated on each side above, two dots on extreme 

 apex in 9, mark beneath anterior wing, spot beneath posterior 

 wing and pleura beneath, except two medial lines in 9, line on 

 outside of posterior coxae, line on four anterior femora beneath in 

 9, the posterior pair except base and apex in 9, only a line above 

 in %, tips of tarsi, and abdomen above except rather broad ajiical 

 margins, black; femora, tibia?, and four anterior tarsi pale honey- 

 yellow; wings yellowish-hyaline, iridescent, nervures and stigma 



