1865.] 159 



side, postscutellum, and a rather large spot on each side of the metatho- 

 rax at tip, ohseure yellowish; mesothorax narrowly margined, before 

 and behind, with blackish. Wings pale yellowish-hyaline, more deeply 

 yellowish along the costa, the marginal cell slightly dusky; nervures 

 pale testaceous. Legs pale yellowish-ferruginous, fuscous at base, the 

 tibiae and tarsi paler. Abdomen shining ; basal segment fuscous, punc- 

 tured, longer than the thorax, slender at base and gradually dilated 

 towards the tip, which is truncate and margined above and beneath 

 with yellow; on each side, about the middle, there is a short obtuse 

 tubercle, the dorsal surface is convex, with several dull ferruginous 

 stains; remaining segments pale ferruginous, the second large, convex, 

 inure or less stained with pale fuscous, with the apical margin narrowly 

 yellow ; beneath, the second segment has an obscure yellowish spot on 

 the disk. Length 4J lines; expanse of wings 7 lines. 



Collection. — Dr. J. G-undlach. One specimen. 



Genus ODYNERUS, Latr 

 Odynerus Proetus, n. sp. 



Dull ferruginous ; base of clypeus, inner orbits, prothorax in front, spot be- 

 neath tegulee, scutellums, most of metathorax, legs in part, and apical margins 

 of abdominal segments, yellowish; wings deep yellowish-hyaline. 



Female. — Head dull ferruginous, dusky above the insertion of each 

 antenna, around the ocelli, and on the occiput; inner orbits of the eyes, 

 filling up the deep sinus, a small subcordate mark between the an- 

 tenna?, the clypeus, and most of the mandibles, yellowish ; clypeus 

 large, closely punctured, flattened on the disk and slightly and obtusely 

 emarginate at tip; mandibles black at tip; palpi pale ferruginous; an- 

 tennae yellowish-ferruginous, the flagellum tinged with fuscous above, 

 the scape yellowish beneath. Thorax fusco-ferruginous, closely and 

 rather deeply punctured, covered with a very short, fine, dull yellowish, 

 subsericeous pile; broad anterior margin of the prothorax above, 

 continued in a narrow line to the tegulaa, and a large spot on each side 

 of the pleura just beneath the tegulae. yellowish; mesothorax fusco- 

 ferruginous, tinged with blackish on the anterior and posterior margins, 

 the disk with two distant, very faint, longitudinal, ferruginous lines, 

 confluent behind the middle ; scutellum and postscutellum yellowish, 

 the apical margin of the former blackish, and the yellowish portion 

 divided down the middle by a faint fuscous line; metathorax yellow, 

 the suture between it and the postscutellum, as well as a large spot on 

 the apical middle, fusco-ferruginous, posterior face rather suddenly de- 

 pressed, with a small tubercle on each side at the angulation; pleura 



