36 MISC. PUBLICATION 69 8, U. S. DEPT. OF AGRICULTURE 



Beeson and Bhatia (1937) report adults reared in India from logs 

 of Abies webbiana, Alnus nitida, Artocarpus hirsuta, Bauhinia varie- 

 gata, Buchanania latifolia, Dalbergia sissoo, D endrocalamus strictus, 

 Garugo pinnata, Heritiera formes, Mallotus philippinensis, Shorea 

 robusta, Sterculia campanulata, Terminalia tomentosa, Thespesia 

 populnea, and bamboo. Potter ( 1935) considers that this species origi- 

 nally fed solely on wood, probably living wood. 



Genus PROSTEPHANUS Lesne 



Prostephanus Lesne, 1898, Soc. Ent. de France Ann. (1897) 66: 320, 342-344; 

 1938, in Junk (pub.), Coleopt, Cat., pt. 161, p. 22. 



Head strongly convex, partially covered by prothorax, not visible 

 from above, the front not produced into a lobe on each side of clypeus, 

 transversely depressed behind eyes, glabrous and shining on vertex; 

 clypeus strongly transverse, broadly, arcuately emarginate in front, 

 at sides as long as or longer than labrum; labrum subtruncate or 

 broadly rounded and ciliate in front; mentum long, transverse, 

 strongly lobed in front at middle ; maxillary and labial palpi subequal 

 in length, densely pubescent, apical segment of maxillary palpus 

 elongate, acute at apex, apical segment of labial palpus oblong, nar- 

 rowly rounded at apex ; mandibles robust, acute at apices, with a small 

 tooth at middle of inner and outer margins; eyes strongly projecting, 

 oblong, transverse. Antenna 10-segmented; funicle slender, sparsely 

 clothed with long hairs; first and second segments robust, subequal 

 in length; third and fourth elongate; fifth to seventh shorter and 

 slightly wider ; eighth to tenth segments forming a broad, loose club, 

 the segments subequal in length, and the tenth segment as wide as 

 or wider than ninth. Pronotum globose, length and width subequal, 

 ogival in front, tuberculate anteriorly, imbricate posteriorly; sides 

 rounded posteriorly, obliquely narrowed anteriorly, and not distinctly 

 margined, sometimes the margin indicated posteriorly by a row of 

 small tubercles. Scutellum small, quadrate. Elytra strongly convex, 

 punctate, abruptly declivous posteriorly, the declivity strongly mar- 

 gined on each side posteriorly, sometimes with distinct tubercles. Legs 

 short, subequal in length; tibiae slightly expanded toward apices, 

 dentate on exterior margins, anterior pair with large arcuate spine at 

 apices, posterior tarsi shorter than tibiae, apical segment of each as 

 long as the preceding four segments united. Anterior and middle 

 coxae contiguous. Body elongate, three times as long as wide, cylin- 

 drical. 



Genotype. — Apate punctatus Say. (Present designation.) 

 Lesne erected this genus for Dinoderus trwwatus Horn and Apate 

 punctatus Say, both from North America, and Xylopertha sulcicollis 

 Fairmaire and Germain from Chile, without designating any of the 

 species as the genotype. 



KEY TO THE SPECIES OF PROSTEPHANUS 



1. Apical declivity of elytra tuberculate 2 



Apical declivity of elytra not tuberculate 3 



2. Apical declivity of elytra with one or two short, straight, more or less 



distinct tubercles on each side, the surface with long, recumbent 

 hairs punctatus (Say), p. 37. 



Apical declivity of elytra with a large recurved tubercle on each side, 

 the surface with short, inconspicuous, erect hairs 



arizonicus, new species pp. 38. 



i 



