92 E. T. CRESSON. 



Trogus tricinctus is probably a Joppa ; and Trogus ? pusillus an (Edirepha- 

 lus. Not having specimens of either species before me, I have allowed tlieni 

 to remain, for the present, as originally described. 



Hopllsmenus ornatus. — 9- Head, thorax and antennee black; broad orbits, 

 cheeks, clypeus, labriim, palpi, annulus on antennae, anterior and posterior mar- 

 gins of prothorax, as well as a spot on each side, two lines on mesothorax, a line 

 over the tegulfs, a short one beneath, seutellura and postscntellura, lateral ba- 

 sal angles of metathorax, a large sjiot on each side, two longitudinal marks on 

 the 250sterior truncation, covering the spines, and a large irregular mark on the 

 pleura, connected with a small spot beneath the posterior wing, all white; disk 

 of clypeus, mandibles and tegulse dusky ; antennis as long as the body, porrect, 

 filiform, scape beneath fulvous; thorax closely punctured; scutellum flattened, 

 quadrate, the sides at base carinated, apex truncate; metathorax rugulose, 

 transversely striated behind, the elevated lines sharply defined, forming near 

 the base a large, square central area, and on each side of the posterior trunca- 

 tion a moderately long, subacute spine; wings hyaline, iridescent, nervures and 

 stigma pale fulvous, areolet triangular; legs robust, shining, bright fulvous, 

 spot on the coxeb behind, most of the trochanters, and the posterior larsi, yel- 

 lowish-white ; abdomen shining, concolorous with the legs, with a lateral white 

 spot on the tip of the first three segments; first segment slender, sliglitly and 

 gradually dilated at tip. Length 4i lines. 



ITrti.— New York, (Coll. Mr. E. Norton). One J specimen. 



Trogus atrocaeruleus. — 9- Opaque blue-black, mesothorax tinged with ob- 

 scure green ; face and cl3'peus densely and strongly punctured and shining; 

 antenna; brown-black, blue-black at base, subtestaceous beneath toward the 

 tips; thorax confluently punctured; scutellum much elevated, very obtuse, 

 and densely punctured; metathorax rugose, elevated on the disk, with a sub- 

 cordate central area, deeply emarginate behind, posterior portion very abrupt- 

 ly truncate; wings black, with a deep, brilliant violaceous reflection; areolet 

 subtriangular, oblique, not petiolated, the second recurrent nervure received 

 beyond the middle; legs entirely blue-black, with a slight tinge of green at 

 base; abdomen blue-black, immaculate, subconvex, the fourth and following 

 segments smooth and polished. Length 9:^ lines. 



Hub. — Louisiana, (Coll. Mr. E. Norton). One 9 specimen. 



T. austrinus. — % 9- ^^'^^^ black, opaque; head ferruginous, broader in 9- 

 anterior orbits of % lemon-yellow; antennae orarge-yellow, longer and paler in 

 ^ , ferruginous at base in 9; thorax clothed with a short black pubescence; 

 mesothorax, upper jiortion of prothorax, and the scutellum obscure ferruginous, 

 the lalter much elevated, conical, subobtuse, densely pilose; metathorax un- 

 even, coarsely rugose, smoother at base in. front of transverse carina, the disk 

 elevated into an obtuse, shining tubercle, posterior portion not abrupt; tegulse 

 brown ; wings blackish, with a brilliant seneous reflection, areolet triangular, 

 petiolated, receiving the second recurrent nervure before the middle ; legs 

 black, the two anterior pairs, except base, more or less fulvous, posterior pair 

 of 9 tinged with brownish ; abdomen long, subclavate, being gradually dilated 

 toward the apex, dull opaque black, very densely sculptured, incisures rather 

 deeply impressed; dilated portion of first segment flattened, with a square red 

 mark on the disk. Length 10 — lOi lines. 



Hub. — Georgia,'^ (Ridings); Florida, 9 (^'^orton). One '^, one 9 > specimens. 



