384 PROCEEDINGS OF THE ACADEMY OF 



mandibles, palpi, tegulse, four anterior legs, and posterior tro- 

 chanters pale lemon-yellow ; posterior legs and abdomen pale 

 honey-yellow; upper edge of second abdominal segment black; 

 wings h^'aline, iridescent, tips dusk)' ; areolet moderate, trian- 

 gular, petiolated. Length 4| lines. 

 Cordova. 



7. Campoplex lectus, n. sp. 



% . Head, antennse, thorax, coxse, apex of abdomen, and upper 

 edge of second segment, black, with a very fine sparse golden 

 pile; mandibles, scape beneath, tegulce, four anterior legs, anterior 

 coxse beneath, and basal segment of abdomen, pale lemon-j'ellow ; 

 posterior legs and remainder of abdomen bone3'-3-ellow, the former 

 varied with dusky; wings yellow-h3'aline, apex fuscous, areolet 

 large, rliomboidal, petiolated ; metathorax finely' reticulated. 

 Length 5^ lines. 



Orizaba. (Sumichrast, No. 128.) 



8. Campoplex gnarus, n. sp. 



% . Head, antennae, and thorax black, clothed with a pale 

 golden pubescence"*, mandibles, palpi, scape beneath, tegulfe, four 

 anterior legs pale lemon-yellow ; posterior legs and abdomen honey- 

 yellow ; base of flagellum pale; posterior tarsi, apex of abdomen, 

 and dorsal edge of second segment blackish ; wings hyaline, iri- 

 descent, tips fuscous, areolet large, rhomboidal, petiolated. Length 

 4 lines. 



Orizaba. (Sumichrast, No. 157.) Much like melliventriSj 

 but distinguished at once by the yellow coxjc. 



9. Campoplex calcaratus, n. sp. 



Z9. Black; spot on mandibles, palpi, tegula?, anterior legs 

 except coxre, tips of intermediate femora, their tibire and tarsi, 

 extreme base of posterior tibiai and all the tibial spurs, pale 

 leraon-3'ellow; abdomen rufous, tiie first, most of second, and 

 dorsal edge of remaining segments black ; face, metathorax, and 

 legs clothed with a fine silvery pile ; wings hyaline, iridescent, 

 areolet large. Length 5^ lines. 



Orizaba. (Sumichrast, No. 80.) 



10. Campoplex macilentus, n. sp. 



9. lilack, clothed with a sparse silvery pubescence; tliird and 

 following segments of abdomen, except broad dorsal edge, honey- 



