66 MISC. PUBLICATION 6 98, U. S. DEPT. OF AGRICULTURE 



tudinal, median, smooth line, sometimes extending from base to apex ; 

 sides arcuately converging posteriorly, parallel anteriorly, produced 

 into a long, slightly arcuate horn at apical angles, the horn not hooked 

 at apex; posterior angles rounded or rectangular; surface densely, 

 coarsely, uniformly granulose, with a few large erect tubercles ante- 

 riorly and on apical horns, sparsely, uniformly clothed with very 

 short, semierect, whitish, scalelike hairs, with numerous very long, 

 erect, yellowish hairs on apical declivity and along anterior margin. 



Elytra at base slightly narrower than pronotum along apical half, 

 slightly sinuate at base; sides nearly parallel, conjointly broadly 

 rounded at apices, the margins finely granulose posteriorly; surface 

 densely, coarsely, irregularly punctate, rugose or coarsely granulose 

 on intervals, sparsely, uniformly clothed with very short, recumbent, 

 whitish, scalelike hairs. Each elytron with five more or less distinct, 

 crenulate, longitudinal costae; first and second distinct, extending 

 from base to near apex ; third and fourth more or less obsolete ; fifth 

 extending along lateral margin from base to apex, thickened and 

 strongly elevated along apical fifth. 



Body beneath rather densely clothed with short, semierect, yellow- 

 ish hairs ; abdomen coarsely, densely, uniformly granulose ; mesoster- 

 num and metasternum densely, coarsely, irregularly punctate. Ante- 

 rior coxal cavities closed posteriorly. 



Female. — Differs from the male in having the pronotum slightly 

 narrower or subequal in width to the elytra, the clypeus not distinctly 

 flattened at the middle, and the front of the pronotum not clothed 

 with long, erect yellow hairs. 



Length 6.5-17 mm., width 1.75-5.5 mm. 



Type locality. — Bourbon Island ; location of type unknown to writer. 



Distribution. — This species is distributed throughout all parts of 

 Southern and Tropical Africa, Western Arabia, Madagascar, and the 

 Mascarene, Comoro, and Bourbon Islands. A single specimen was col- 

 lected at St. Albans, Vt., September 20, 1939, with hazelnuts from 

 Canada. 



Hosts. — Burchell (1822) recorded this species burrowing in the dead 

 limbs of Acacia along the Orange River, in Griqualand, Africa. 

 Lesne ( 1924) recorded it in Euphorbia intisy. Tooke and Scott ( 1944) 

 reported this species as attacking bamboo, and logs and poles of 

 eucalyptus, particularly Eucalyptus saligna. 



The adults of cornutus are nocturnal and are commonly found 

 only after sundown. There is a specimen of cornutus in the Dejean 

 Collection labeled Apate destructor Burchell. 



Genus AMPHICERUS LeConte 



Amphicerus LeConte, 1861, Smithsn. Inst. Misc. Collect. 3 (1): 208; Horn, 

 1878, Amer. Phil. Soc. Proc. 17: 541, 546-548; LeConte and Horn, 1883, 

 Smithsn. Inst. Misc. Collect. 507: 228; Casey, 1898, N. Y. Ent. Soc. Jour. 6: 

 66, 68-70; Lesne, 1899, Soc. Ent. de France Ann. (1898) 67: 502; 1937, Soc. 

 Ent. de France Bui. 42: 238; 1938, in Junk (pub.), Coleopt. Cat, .pt. 161, pp. 

 40-42. 



Caenophrada Waterhouse, 1888, Ann. and Mag. Nat. Hist. (ser. 6) 1: 350. 



Schistocenos Lesne, 1899, Soc. Ent. de France Ann. (1898) 67: 442, 502-524; 

 Schilsky, 1899, in Kiister and Kraatz, Kafer Europas 36 : p. TT ; Lesne, 1901, 

 Abeille 30: 86, 92-93, pi. 1, fig. 28; Csiki, 1903, Rov. Lapok. 10: 18, 19; 

 Reitter, 1911, Fauna Germanica, v. 3, p. 301 ; Jakobson, 1913, Kafer Russland, 



