MEXICAN HYMENOPTERA. 21 



2. Hoplismenus otomitus, n. sp. 



9 • — Bluck ; face, mouth, orbits, broad oa the cheeks, broad annu- 

 lus on antennae, complete above, spotted with black beneath, collar, 

 line on each side before tegulge, two abbreviated lines on disk of meso- 

 thorax, a cuneiform mark on each side of scutellum, postscutellum, an- 

 terior half of tegular, a short line beneath, a large mark on each side 

 of pleura, indented behind, a spot behind each posterior wing, four 

 spots on metathorax posteriorly, the four anterior coxa3, and spot on 

 the posterior pair behind, all white ; legs and abdomen fulvo-ferrugi- 

 uous; sides of posterior coxae, tips of the tarsi, and tip of first abdo- 

 minal segment above blackish, posterior tarsi yellow; wings hyaline, 

 faintly yellowish, nervures and stigma brown. Antennas long, stouter 

 toward the tips, third joint longer than first and second together, 

 fourth to sixth joints shorter and subequal; mesothorax shining, with 

 sparse confluent punctures, no dorsal impressed lines; scutellum flat, 

 the tip truncate, and the sides carinate ; metathorax rugulose, trans- 

 versely so behind, the elevated lines tolerably distinct, the apex ob- 

 liquely truncate, with a sharp transverse carina on the verge of the 

 ti'uncation, ending laterally in a sharp, flattened tubercle ; areolet of 

 anterior wing 5-angular ; legs rather robust; abdomen short, ovate, de- 

 pressed, slender at base, apex of first segment shining, broadly dilated, 

 deeply punctured ; apical segments shining. Length 4 lines. 



One $ specimen. 



,3. Hoplismenus munitus, n. sp. 



% 9 • — -Black, opaque ; face, clypeus, mouth, orbits, more ar less in- 

 terrupted at summit and behind eyes, broad on cheeks, annulus on an- 

 tenna3 beyond the middle, upper and lower margins of prothorax, the 

 former interrupted medially, two central stripes on mesothorax, tegulas, 

 lateral and apical margins of scutellum, and the postscutellum. whit- 

 ish; metathorax yellowish-white, with three longitudinal black stripes — 

 one on each side and one down the middle — connected by a transverse, 

 subbasal, black band ; pleura yellowish-white, with a curved line be- 

 neath the wings; wings hyaline, nervures black, stigma whitish; legs 

 yellow, coxcG and trochanters whitish, a line on the posterior coxa3 be- 

 hind, apex of their trochanters, line an all the femora above, a more 

 or less distinct line on all the tibiee behind in 9 , sometimes not reach- 

 ing the tips, tips of four anterior tarsi in 9 , posterior tibiae and four 

 anterior tarsi in % , black or blackish; abdomen black, petiole above 

 and beneath, apical margin of first segment, uneven anteriorly, the 

 lateral and apical margins of the second and following segments, a me- 



