160 [January 



fuscous beneath ; tegulae dull yellowish, with a ferruginous stain on the 

 middle. Wings deep yellowish-hyaline, faintly dusky at tips; nervures 

 honey-yellow. Legs deep yellowish, the femora above and at base be- 

 neath pale ferruginous. Abdomen oblong-ovate, the basal segment 

 dome-shaped, obtusely rounded at base, without transverse suture or 

 carina, distinctly punctured, the remaining segments indistinctly so; 

 apical margins of all the segments above narrowly yellowish, almost 

 divided on the disk by a narrow line, those of the second and third 

 segments broader and dilated on the extreme sides, especially on the 

 first segment where there is a rather large triangular mark, the bands 

 on the remaining segments more or less emarginate on each side ante- 

 riorly; apical segment with a large, broad, angular, dull yellowish mark 

 on the middle; beneath marked as above, except that the apical seg- 

 ment is immaculate, and the second segment is almost entirely yellowish, 

 with three ferruginous spots arranged transversely near the apical 

 margin. Length 82 lines; expanse of wings 15 lines. 

 Collection.— Dr. J. Gundlach. One specimen. 



Odynerus consors, n. sp. 



Black; orbits, spot between antennse, clypeus. mandibles, prothorax in front, 

 tegulre, spot beneatb the wings, scutellums, most of metathorax and legs, and 

 apical margins of abdominal segments, yellowish ; abdomen fuscous, the first 

 and third segments blackish : wings yellowish-hyaline, apex dusky. 



Male. — Head black, deeply and closely punctured ; the orbits, filling 

 up the sinus in front, a spot between the antenna?, dilated above, cly- 

 peus, labrum, and mandibles, except tips, yellow, in oue specimen more 

 or less ferruginous; antennse nearly as long as the thorax, terminated 

 by a hook, black, tinged with ferruginous at base and tips, scape yel- 

 lowish beneath. Thorax dull-blackish, densely punctured, slightly 

 pubescent; broad anterior margin of prothorax continued in a narrow 

 line to the tegulae, sometimes interrupted, a large spot beneath the 

 tegulae, scutellum except its apical margin, and postscutellum, yellowish, 

 sometimes tinged with ferruginous ; pleura slightly sericeous in certain 

 lights, with an oblique dull yellowish stain on each side beneath ; meta- 

 thorax mostly yellowish, the extreme sides spotted or stained with fus- 

 cous, the posterior face deeply and broadly excavated, covered with fine 

 transverse stria3, more or less distinct, and with a large blackish mark 

 covering the disk and spreading out on each side at base ; lateral angles 

 prominent and obtuse ; tegulae yellowish, with a ferruginous spot on 

 the middle. Wings yellowish-hyaline, more deeply yellowish along 

 the costa, the apex, especially about the marginal cell, dusky ; nervures 

 honey-yellow. Legs yellow, the femora tinged with ferruginous above. 



