1865.] 161 



Abdomen shaped and marked as in the preceding species, but the gene- 

 ral color is fuscous, with the third, and sometimes the first, segments. 

 except their apical margins, blackish, and the spot on the terminal seg- 

 ment above is scarcely defined. Length 6£ — 71 lines ; expanse of wings 

 10] — VI lines. 



Collection. — Dr. J. (iundlach. Two specimens. 



This may possibly be the male of 0. Prcetus. 



Odynerus cubensis, Sauss. 



Odi/nerus cubensis, Sauss. Mon. Guepes. Sol. p. 181, pi. 18, fig. 8. 

 Collection. — Knt. Soc. Philad. Six (S ?), specimens. 



Odynerus apicalis, n. sp. 



Black: clypeus, mandibles, transverse band above antennae, base of antennas, 

 prothorax above, tegulae, spot beneath tegulse, scutellum, most of metathorax 

 and legs, basal segment of abdomen except disk, and the apical margins of the 

 second and third segments, yellowish, apical segments ferruginous ; wings fus- 

 co-hyaline. 



Female — Opaque-black; head and thorax deeply and closely punc- 

 tured, the former broader than the thorax, rather short; a broad trans- 

 verse band on the front, filling up the sinus of the eyes and deeply 

 and somewhat obliquely indented above the insertion of each antenna, 

 broad posterior orbits and the clypeus, yellow, sometimes strongly tinged 

 with ferruginous ; mandibles yellowish-ferruginous, sometimes yellowish 

 at base ; clypeus depressed, rhomboidal. the extreme tip truncate ; an- 

 tennae black, the two basal joints ferruginous. Thorax : prothorax 

 yellow above, tipped with dull ferruginous just before the teguhe ; 

 pleura somewhat sericeous, with a large, rounded, yellow spot beneath 

 the tegulse ; mesothorax immaculate ; scutellum with two large, quad- 

 rate, yellowish marks, nearly confluent ; postscutellum yellowish; me- 

 tathorax finely and transversely striated, deeply excavated on the disk 

 with a large yellowish mark on each side covering the lateral angles. 

 which are rather prominent and obtuse ; tegulse yellowish, with a fer- 

 ruginous dot on the middle. Wings subhyaline, faintly tinged with 

 fuscous, honey-yellow along the costa, with the marginal cell almost 

 entirely fuscous. Legs yellowish ; the femora except tips beneath, the 

 tibiae beneath and most of the tarsi, pale ferruginous. Abdomen ovate, 

 basal segment nearly equal in width to the second, remaining segments 

 gradually tapering to the tip, and more deeply aud densely punctured 

 than the basal segments ; first segment rounded at base without suture 

 or carina, the apical margin confluent with a large angular mark on 

 each lateral margin, yellowish; apical margin of the second and third 

 segments, broader on the second segment, yellow, that on the third 



