TEXAN HVMENOPTERA. 239 



antennas black, two or three basal joints ferruginous; prothorax ferruginous, 

 with a narrow yellow band in front; mesothorax black, with a dull reddish 

 spot over tegulas; scutellum and postscutellum ferruginous, the former with 

 an obscure yellowish spot on each side; nietathorax broadly excavated behind, 

 ferruginous, lateral angles prominent, coarsly serrate, yellow, posterior face 

 blackish medially; pleura black, with a small yellow spot beneath tegulae, 

 stained anteriorly with ferruginous; tegulaj 3'ellowish, pupilled with ferrugi- 

 nous; wings fusco-hyaline, fuliginous along costa and in marginal cell, viola- 

 ceous; legs ferruginous, knees and tibise beneath yellowish; abdomen robust, 

 sericeous; first segment rounded, sparsely punctured, more closely so towards 

 apex, ferruginous, a black spot on basal middle, extending in a narrow line 

 nearly to apex, apical margin broadly yellow, suddenly dilated on each side; 

 second segment closely and strongly punctured, black, with a large dull ferru- 

 ginous blotch on each side separated before apex by a slender black line, 

 apical margin depressed, densely and coarsely punctured, yellow, the margin 

 strongly reflexed ; remaining segments densely and strongly punctured, ferru- 

 ginous, more or less black at base, apical margins flat, that of third segment 

 yellowish ; venter ferruginous, a small yellow spot on each apical corner of 

 second segment. Length .60 inch. 



%. — Much smaller than 9? spot above base of antennae much larger, sub- 

 triangular and confluent with a spot between antennae; clypeus entirely yellow 

 as well as outer side of mandibles; scape beneath pale yellow, apical joint of 

 flagellum long, narrow, curved, pale yellowish; mesothorax more or less 

 varied with ferruginous, and black, sometimes entirely ferruginous; scutellum 

 generally with a yellow spot on each side; postscutellum always ferruginous; 

 pleura generally ferruginous, with the yellow spot beneath tegulae conspicu- 

 ous; knees, tibise and tarsi more or less yellow; second abdominal segment 

 ferruginous, more or less black at base, besides the broad yellow apical band 

 there is sometimes a rounded yellow spot on each side between base and apex; 

 apical margins of segments 3 — 5 narrowly yellow. Length .45 inch. 



Four specimens. (Beltrage.) The apical margin of the second 

 segment only is reflexed and the first abdominal segment is strongly 

 punctured. 



Odynerus firniu$«, n. sp. 



9. — Black, subsericeous ; clypeus generally more or less stained with pale 

 ferruginous, with a cuneiform yellowish mark on each side at base, pointing 

 within, the points sometimes confluent; mandibles ferruginous, black at tips, 

 sometimes with a yellowish spot at base; anterior orbits as far up as the emar- 

 gination, sometimes a transverse mark above insertion of antennae, a large spot 

 behind summit of eyes, and scape of antennae in front, yellowish or yellowish- 

 ferruginous; prothorax black, brown or ferruginous, with a more or less dis- 

 tinctly defined yellow band in front; tegulae yellow, pupilled largely with 

 brown ferruginous; postscutellum and a large spot on each side of metathorax, 

 bright lemon-yellow; wings subhyaline, subviolaceous, costa rather broadly 

 fuliginous; legs ferruginous, coxae, trochanters, and base of femora, black; 

 first segment of abdomen more or less ferruginous, with a central black mark, 

 sometimes larger, sometimes smaller, its apical margin lemon-yellow, dilated 

 into a large angular spot on each side of the segment; apical margin of second 



