TEXAN HYMENOPTERA. 237 



ferruginous; posterior face of metathorax deeply excavated, obliquely striated 

 towards apex; tegulae yellow-ferruginous, pupilled with brown; wings fusco- 

 hyaline, marginal cell fuliginous; legs pale ferruginous, tibiae more or less yel- 

 low beneath; abdomen shaped as in clu.sinu.-i, strongly sericeous; first segment 

 smooth, rounded at base, impunetured, ferruginous, more or less blackish on 

 basal middle, with a narrow yellow apical margin ; second segment black, 

 rather closely and strongly punctured, depressed and coarsely punctured be- 

 fore apex which is broadly yellow and slightly reflexed, a small ferruginous 

 spot on each lateral margin; the following segments black, the third, fourth 

 and fifth with a narrow yellow band at apex ; second and following segments 

 with long, fine pale pubescence toward apex; venter black, first and second 

 segments black, the second, third and fourth with a narrow yellow apical 

 band. Length .45 inch. 



Two specimens from Comal Co. 



Odynerns \erns, n, sp. 



J.— Size and shape of cultus, strongly and confidently punctured; head 

 broad, ferruginous, spot at base of each antenna and a large blotch on vertex 

 enclosing ocelli and extending to middle of occiput black; clypeus broad, 

 coarsely punctured, apex truncate with prominent lateral angles; antennae 

 black, scape ferruginous; prothorax ferruginous, narrowly yellowish on an- 

 terior margin; mesothorax black, sometimes with a ferruginous spot on pos- 

 terior middle; scutellum ferruginous, narrowly black posteriorly; postscutel- 

 lum yellow; metathorax ferruginous, blackish on middle of posterior face 

 which is deeply concave and obliquely striated towards apex, lateral angles yel- 

 low above; pleura black, with a yellow spot beneath tegulse; tegulse yellow, 

 pupilled with ferruginous; wings subhyaline, more or less tinged with yellow 

 or fuscous, costa yellow or fuscous, marginal cell fuliginous; legs uniformly 

 pale ferruginous; abdomen slightly sericeous; first segment smooth, rounded 

 at base, impunetured, ferruginous, a black spot on basal middle and another 

 near apical middle, apex with a yellow band which is dilated into a spot on 

 lateral margin ; second segment strongly not densely punctured, more closely 

 and coarsely punctured before apex which is broadly subdepressed, black, 

 with a large ferruginous blotch on each side, apical margin broadly lemon-yel- 

 low; three following segments black, with narrow yellow apical margins; 

 apical segment ferruginous; segments not reflexed at apex; venter ferruginous, 

 second segment more or less stained with blackish, apical margins of second, 

 third and fourth segments narrowly yellowish. Length .45 inch. 



9 var. — Color pale ferruginous, with the markings bright yellow; spot on 

 vertex sometimes almost obsolete; emargination of eyes and upper margin 

 of clypeus sometimes yellow; anterior margin of prothorax broadly yellow; 

 mesothorax entirely ferruginous, or with a black spot on anterior middle; 

 scutellum with a yellow spot on each side; pleura ferruginous, with yellow 

 spot beneath tegulse; tibiae more or less yellow beneath; abdomen pale ferru- 

 ginous, with the yellow apical margins bright; venter ferruginous. Length 

 .45 inch. 



%. — Smaller than 9' more strongly sericeous; vertex black; a very large 

 triangular mark on middle of front, anterior orbits filling in emargination of 

 eyes, clypeus, labrum, base of mandibles and scape beneath, cream-white; 



