GALERUCINE BEETLES — BLAKE 255 



Remarks: In general shape, color, and markings this strongly re- 

 sembles a species of Neobrotica. 



Oroetes wilcoxi, new species 



Figure 18 



About 6 mm. in length, elongate oblong oval, shining, very minutely 

 punctate, the male with the face excavated, antennal joints only ten 

 in number, the third and fom-th antennal joints excavated near the 

 end, and the pronotum with a median knob anteriorly, none of these 

 abnormalities present in the head, antennae, or pronotum of the 

 female; pale yellow brown with dark brown antennae in the female 

 and pale yellow brown, except basal joint, in the male, elytra with 

 basal third yeUow brown, the rest deep violet. 



Head with interocular space more than half width of head, in female 

 smoothly rounded over the occiput, polished, the lower front flat, 

 paler yellow, without trace of carina or tubercles, in the male the 

 lower front below the antennal sockets hollowed out with a flattish oval 

 side piece extending from the antennal sockets to labrum, the mouth- 

 parts yellowish brown. Antennae 10-jointed in male, the first joint 

 robust, very swollen, second short, third short, excavated at the end, 

 fourth longer than basal joint with a cutout incision near the basal 

 end, remaining joints long and becoming more slender towards apical 

 joint, terminal joint very elongate and deeper brown, the rest yellowish. 

 In the female the basal joint more slender, second and third joints 

 short and about equal, remainder long and a little more slender 

 than in the male. Prothorax wider than long with slightly rounded 

 sides and a scooped-out depression in the basal half, in the male a 

 prominence on either side anteriorly and the anterior margin produced 

 a little in the middle with a knoblike swelling having a small hole in it 

 and setae about the edges; in the female the side himips less developed 

 and no such median knob; shiny pale yellow. Scutellum pale yellow. 

 Elytra wider behind the middle with small humeral prominences and 

 wide explanate margin, shiny, very finely punctate, pale yellow in 

 basal third, the remainder of elytra deep violet. Epipleura not ex- 

 tending much beyond the middle; body beneath and legs entirely 

 yellow, the middle tibiae of the male notched near the apex, all tibiae 

 with a tiny spine; anterior tibiae in the male stouter, and the first 

 tarsal joint enlarged and cylindrical; claws appendiculate, anterior 

 coxal cavities open. Length 5.5-7.5 mm.; width 2.5-3 mm. 



Type, male, USNM 66852, and 1 female paratype, both from 

 Rurrenabaque, Rio Beni, Bolivia, collected October 1921 by W. M. 

 Mann. 



Remarks: This species is the second of the genus to be described. 

 Oroetes fiavicollis Jacoby was described from specimens from Chon- 



