1 86 MEMOIRS ON THE COLEOPTERA 



relatively smaller than in relictus, smooth; elytra a fifth longer than 

 wide, barely wider than the prothorax, subevenly rounded in not 

 quite apical half, the surface sloping rapidly from the sutural region 

 and nearly flat almost to the sides; punctures small, evenly dis- 

 tributed, rather sparse, confused except in the three discal and one 

 finer lateral double series, which are completely unimpressed; all 

 the punctures consisting of a small indentation, having at the bottom 

 an extremely minute annulus; pygidium with rather small sparse 

 shallow variolate punctures, becoming obsolete apically; larger claw 

 of the anterior male tarsi deeply split at apex, the inner ramus long, 

 gradually acute and in prolongation of the inner margin, the outer 

 lobe shorter and broader, very acute at apex but not so finely acicu- 

 late as the inner. Length (c? 1 ) 23.5-25.0 mm.; width 11.6-13.2 mm. 

 Brazil (Para), Baker. Three examples. [Scarab&us ebenus DeG., 

 cordatus Fabr. ; Cydocephala scarabceina Perty] *ebenus DeG. 



The female does not differ from the male in any respect, even 

 in the pygidium, which is merely less convex and feebly impressed 

 beneath near each side, and the elytra are rather more evenly 

 convex and with less of the singular biplanate slope of the male, 

 the anterior tarsi slender and unmodified as usual. The inferior 

 striated lobe of the fourth male anterior tarsal joint is but little 

 longer than in the relictus or sallei types, but is more obliquely 

 pointed. 



Euetheola Bates. 



The few species of this genus have the same glabrous under 

 surface as in Ligyrodes, but to show how distinct genera, and this 

 is undoubtedly of that class, may resemble each other in certain 

 apparently peculiar features, it should be said that the characteristic 

 formation of the anterior margin of the clypeus transverse but 

 posteriorly sinuated at the middle by the interval between the 

 rather approximate teeth, is almost completely similar to the 

 form seen in Ligyrodes aztecus, described above. The erect post- 

 coxal process of the prosternum is as in Ligyrodes and Euligyrus, 

 except that the glabrous part is nearly flat and occupies the entire 

 surface, the fringe of cilia radiating from its hind margin. The 

 sides of the mentum are irregularly and closely setose as in Ligy- 

 rodes but not in Etdigyrus. The mandibles are rather slender and 

 very unequally bidentate, and the anterior tarsi are unmodified 

 sexually as in Ligyms. The body is much smaller in size than in 

 Ligyrodes and is more oblong than in Ligyrus, and, as before stated, 

 has no well developed stridulating area on the inner surface of the 



