TEXAN nYJMENOPTEUA. 179 



mesothorax strongly trilobed ; sometimes the scutellum, metathorax above and 

 basal segments of abdomen above are more or less riiisky ; wings pale yellow- 

 ish-hyaline, iridescent, nervures fuscous, stigma pale yellow; thorax paler be- 

 neath; legs slender, yellowish-white, paler at base, tips of tibire and of tarsi 

 faintly dusky ; abdomen longer than head and thorax, smooth, apex more or 

 less dusky, lateral tubercles of first segment not prominent; ovipositor of 9 

 generally much longer than body, honey-yellow, sheaths pilose, fuscous. 

 Length .25 inch. 



Three specimens. (Belfrage.) This is a very variable species and 

 occurs in the Eastern, Middle and Western States and also in Mexico. 



Helcon texanus, n. sp. 



9. — Black, shining, metathorax, most of pleura, posterior legs and abdo- 

 men ferruginous; antennae longer than head and thorax, curled at tips; meta- 

 thorax rugose; wings i^ale smoky hyaline, a broad transverse angular streak 

 beneath base of stigma; posterior coxae, trochanters and femora ferruginous, 

 tips of tarsi rufo-testaceous, posterior femora unarmed ; abdomen polished, ex- 

 cept first segment which is finely and longitudinally roughened ; ovipositor 

 longer than body. Length .38 inch. 



One specimen. (Coll. Gr. W. Belfrage.) 



Icbneutcs abdoininalis, n. sp. 



9- — Black, shining, thinly clothed with a pale sericeous pile; antennas 

 stout, brown-black, sericeous; wings uniformly fuliginous, two or three pale 

 spots beneath stigma, nervures and stigma black; legs stout, yellow-ferrugi- 

 nous, cox£e and trochanters black, tarsi fuscous at tips ; abdomen yellow-ferru- 

 ginous, strongly pale sericeous. Length .18 inch. 

 One specimen. (Coll. Gr. W. Belfrage.) 



Toxoueui'on seniiuigruin. 



Tenthredoides seniiniger, Cress. Proc. Ent, Soc. Phil, iv., p. 291. 



One 9 specimen. ( Belfrage.) 



Sigalplius texanus, n. sp. 



9. — Black, vertex and cheeks shining, face pubescent; palpi and four or 

 five basal joints of antennae honey-yellow; thorax subopaque, sides of meso- 

 thorax shining; metathorax with a central longitudinal carina, apex truncate, 

 lateral angles subacute; tegulae piceous ; wings hyaline, apical half faintly 

 dusky, stigma black ; legs ferruginous, tips of four posterior tibiae and their 

 tarsi blackish; segments of abdomen completely coalite, longitudinally acicu- 

 lated to near apex where the surface is granulated, apex deeply emarginate. 

 Length .15 — .17 inch. 



'J'hree specimens. (Belfrage.) 



Cbelouii^ texaiins, n. sp. 



9 • — Short, broad, robust, black, opaque, with a jiale sericeous pile ; face 

 transversely striated; clypeus smooth; mandibles tinged with ferruginous; 

 thorax rugose; scutellum and tegulse shining; metathorax coarsely reticulated, 

 truncate behind, with prominent acute lateral angles; wings hyaline, dusky 

 on apical third, stigma blackish; legs honey-yellow, coxae, trochanters and 



