56 PROCEEDINGS OF THE NATIONAL MUSEUM vol. i04 



Disonycha cratera, new species 



Figure 57 



About 7.5 mm, in length, oblong oval, feebly shining, alutaceous, 

 coarsely and densely punctate; head, legs, and undersurface except 

 prosternum dark, prothorax with a dark irregular fascia; elytra with 

 broad dark sutural vitta uniting at apex with narrow marginal vitta, 

 a wide median vitta. 



Head with interocular space more than half width of head, lower 

 front short, entirel3^ dark, without depressions over occiput and front, 

 with punctures unevenly distributed, alutaceous except the shiny 

 frontal tubercles, carina broad and rounded. Antennae dark except 

 for the pale edging of the three basal joints, fourth joint twice as long 

 as third. Prothorax not quite twice as wide as long, moderately 

 convex, with a slight basal depression over scutellum and on sides, 

 alutaceous and densely but not very coarsely punctate, pale, with a 

 broad transverse fascia having lobed margin as if composed of con- 

 fluent spots. Elytra feebly shining, alutaceous and strongly and 

 densely punctate, a broad dark sutural vitta uniting at apex with a 

 narrow marginal vitta, a broad median vitta. Epipleura dark. 

 Body beneath and legs dark except for the pale prosternum, clothed 

 with very short fine pale pubescence, the ridging on the tibiae not as 

 sharply prominent as in many species. Length 7.5 mm., width 4 mm. 

 -'Type: Female, USNM 61824, collected at Tumupasa, Bolivia, in 

 December, by M. R. Lopez, Mulford Biological Expedition 1921-22. 



Remarks: This is very much like D. aplicata from Paraguay but is 

 somewhat broader and has more densely and coarsely punctate elytra. 

 Unfortunately there is no male. It does not have the lateral depres- 

 sion on the elytra found in D. venezuelae Jacoby, but is similarly 

 marked. Unlike D. aplicata the fourth antennal joint is twice as 

 long as the third. 



Disonycha crassicornis, new species 



Figure 44 



About 7.5 mm. in length, oblong oval, finely alutaceous, the elytra 

 finely and rather densely punctate; pale yellow brown; antennae, 

 except four basal joints, dark; thin dark sutural and median vitta, 

 neither reaching base nor apex. 



Head entirely pale, the interocular space at least half the ■^vndth of 

 the head, space between antennal sockets broad and little produced, 

 lower front rather short, tubercles well marked, occiput and front 

 smooth except for a circle of punctures about fovea near eye. An- 

 tennae stout, first two joints pale with outer edges dark, third and 



