NATURAL SCIENCES OF PIIILADEI.Pin A. 171 



short atui blunt ; areolet 5-angular, outer iiervure hyaline. Length 

 3-3| lines. 

 Orizaba. 



3. Hemiteles exilis, n. sp. 



%. Black; face, mouth, orbits, cheeks, collar, teguloe, dot be- 

 neath, two abbreviated discal lines on mesothorax, scutellum, 

 spot behind, space behind base of wings, two spots at apex of 

 metathorax, oblique mark on side of pleura confluent beneath with 

 a mark which is acutely notched anteriorly, four anterior coxae 

 and trochanters, most of posterior tarsi and broad apical margins 

 of abdominal segments, that on basal segment dilated anteriorly 

 on each side as far as the tubercles, white ; wings hyaline, iri- 

 descent, apex dusky ; flanks of metathorax and most of legs 

 hone}' -yellow; four anterior tarsi and posterior tibioe behind 

 dusky, apex of posterior tibioe and base and apex of their tarsi, 

 black. Elongate, slender; metathorax finely sculptured, round, 

 without tubercles or spines, and only one transverse carina at 

 base ; areolet 5-angular, open ; abdomen flattened, long, narrow, 

 opaque. Length 4 lines. 

 Orizaba. 



4. Hemiteles rarus, n. sp. 



% . Black ; face, mouth, orbits, cheeks, scape beneath, collar, 

 prothorax except two lateral black dots, teguhe, dot beneath, two 

 dots on disk of mesothorax, large round spot on scutellum, space 

 behind base of wings, pleura except large space beneath wings, 

 apex of metathorax divided centrall}' by a black line, four an- 

 terior legs, posterior coxae at apex and beneath, most of posterior 

 tarsi and apical margin of abdominal segments, all white; pos- 

 terior femora honej^-yellow, their base and apex, their tibiae ex- 

 cept narrow pale annulus near base, and base and apex of their 

 tarsi, black; four anterior femora faintly dusky above; wino-s 

 hyaline, iridescent, nervures black. Slender; hind legs very 

 long; abdomen clavate, first segment slender, with a tubercle on 

 each side behind middle; areolet 5-angular, open; metathorax 

 rounded, with a single transverse carina above the middle. 

 Length 3 lines. 



Orizaba. 



5. Hemiteles irritatus, n. sp. 



%. Head, antennae, mesothorax and abdomen black; face, 



