162 [January 



sometimes tinged with ferruginous ; remaining segments, above and 

 beneath, dull ferruginous; beneath, the apical margins of the second 

 and third segments are narrowly yellowish, more or less sinuate on each 

 side anteriorly. Length 6 lines; expanse of wings 10 lines. 



Male. — Similar to the female, but smaller; the markings of the face 

 are tinged with ferruginous; the basal joint of the antennae is yellow 

 within, with a black line above, the apical joint ferruginous and hooked ; 

 the yellow of the prothorax does not continue all the way to the tegulae, 

 being interrupted with black; fourth segment of abdomen is black with 

 the apical margin, above and beneath, narrowly yellowish, remaining 

 segments are obscure yellowish-ferruginous, more or less dusky at base ; 

 beneath, the second segment has a yellow spot on each side of the mid- 

 dle. Length -IJ lines; expanse of wings 7 J lines. 



Collection. — Ent. Soc. Philad., one % ; Dr. J. Gundlach. two 9 • 

 specimens. 



Closely allied to 0. cubensis, but the face is much broader, and, as 

 well as the basal segment of the abdomen, is differently marked, and 

 the third segment is margined at tip with yellow. It may be a va- 

 riety of 0. yuadulpensis Sauss. 



Odynerus cingulatus, n. sp. 



Black ; clyjjeus, spot between antennae, line behind the eyes, base of antennae, 

 most of prothorax above, tegulse, spot beneath the wings, scutellums, most of 

 legs, and apical bands on two basal segments of abdomen, yellow ; wings fusco- 

 hyaline, the costal tip fuliginous. 



Female. — Black, opaque, slightly pubescent; head not broader than 

 the thorax, rounded when viewed in front, closely and deeply punc- 

 tured; a broad line behind the eyes, near their summit, a subcordate 

 spot between the insertion of the antennas, and the clypeus, bright yel- 

 low, the latter suborbicular, prominent, with the extreme tip slightly 

 truncate ; mandibles piceous; antennae piceous, black at tips, the basal 

 joint bright yellow. Thorax deeply and closely punctured, more so 

 than the head; the prothorax abu\'e, but not reaching the tegulae, a 

 round spot immediately beneath the anterior wing, tegulae, scutellum 

 and postscutellum, bright yellow; metathorax truncate behind, reticu- 

 lated, the posterior declivity obliquely striated. Wings fusco-hyaline, 

 more deeply so along the costa; the extreme tip, especially the marginal 

 cell, more or less fuliginous. Legs yellow; coxae and posterior femora, 

 except tips, black ; tarsi tinged with ferruginous. Abdomen elongate ; 

 basal segment somewhat dome-shaped, with a transverse carina anteri- 

 orly on the verge of the truncation; posterior margin of the first and 

 second segments above with a rather broad band, dilated on each ex- 



