174 E. T. CRESSON. 



Porizon audax, n. sp. 



% . — Black, shining; face, orbits slightly interrupted at summit of eyes, 

 clypeus, mandibles except tips, scape beneath, and tegulae, lemon-yellow; an- 

 tennae approximate at base, longer than head and thorax, black or brown- 

 black; mesothorax sparsely punctured; pleura and metathorax laterally with 

 short pale sericeous pile, the latter with well-defined elevated lines; wings 

 short, broad, fusco-hyaline, clear at tips, stigma large, black, with a pale spot at 

 base; legs honey-yellow, posterior coxae black, four anterior coxae beneath and 

 their trochanters lemon-yellow, posterior tibiae and tarsi more or less obfus- 

 cated ; abdomen dark honey-yellow, the first and basal two-thirds of second 

 segment black. Length .35— .40 inch. 

 Four specimens. (Belfrage ; Boll.) 



Porizon orbitalis, n. sp. 



9 . — Black, subopaque, thorax densely and rather coarsely punctured; orbits 

 broad beneath eyes and interrupted opposite ocelli, mandibles except tips, and 

 tegulae, lemon-yellow ; apical margin of clypeus and scape beneath, rufous ; 

 antennae approximate at base, longer than head and thorax, black ; metatho- 

 rax with well-defined elevated lines, sides with silvery pile; wings hyaline, 

 large, blackish, with a pale dot at base; legs ferruginous, four posterior coxae 

 black, four anterior legs yellowish in front, tips of posterior tibiae and tarsi 

 fuscous ; abdomen pale ferruginous, first and second, and a spot at base of third 

 segments, above black; ovipositor two-thirds the length of abdomen. Length 

 .40 inch. 



%. — Face, clypeus, most of mandibles and scape beneath, lemon-yellow; 

 posterior tibiae and tarsi darker; third abdominal segment entirely ferruginous. 

 Three specimens. (Belfrage.) 



Porizon hyalinipennis, n. sp. 



9- — Black, shining; orbits, clypeus, mandibles except tips, spot on scape 

 beneath and tegulae, pale lemon-yellow; tip of clypeus tinged with honey-yel- 

 low; antennae longer than head and thorax, black; thorax distinctly but not 

 coarsely punctured ; pleura and metathorax with fine whitish pile, the latter 

 more coarsely punctured, with well-defined elevated lines ; wings whitish hya- 

 line, nervures pale, stigma large, black, pale at base; four anterior coxae, all 

 the trochanters and base of tarsi, pale yellow, posterior coxae and tips of their 

 tibiae black, tarsal tips fuscous; abdomen robust, pale ferruginous, first and 

 second segments above black; venter lemon-yellow; ovipositor longer than 

 first abdominal segment. Length .38 inch. 



% . — Face yellow ; four anterior legs paler; apical segment of abdomen more 

 or less marked with black above. 



Four specimens. (Belfrage.) Kesembles orbitalis, but is much 

 less coarsely punctured and with clearer wings. 



Porizon stigniaterus, n. sp. 



£ 9 • — Black ; spot on mandibles, extreme base of wings, venter of 9 > aQ d 

 clypeus and tegulae ot £,, lemon-yellow; wings hyaline, iridescent, nervures 

 and stigma blackish, the latter large and conspicuous; legs dull honey-yellow, 

 tinged with fuscous, coxae and trochanters black, base and apex of posterior 



