-310 DYNASTIN^. 



Genus DIPELICUS. 



Dipeliciis, Hope, Trans. Ent. Sue. Lond. iv, 1845, p. 7; Biirm., 



Handh. Ent. v, 1847. p. 179; Waterli., Trans. Ent. Soc. Lond, v, 



1867, p. 531. 

 Horonotus, Jitom., Handh. Ent. v, 1847, p. 178; Lacord., Gen. 



Coleopt. iii, 1856, p. 421. — Type, Kcarahccus dcedalus, F. (n. syn.). 

 Camelonotus, Fairm., Ann. Soc Ent. Bely. 1883, p. 14 ; Heller, 



Notes Leijd. Mxis. xix, 1897, p. 163 (u. sj-n.). 

 Palmerstonia, Bluchb., JProc. Linn. Soc. N. S. Wales, 1888, p. 855. 



—Type, P. bovilli, Blackb. (Australia). 

 Neodipelicus, EiLsema, Notes Lei/d. Mus. ix, 1887, p. 215. — Type, 



Dijjelicus nasutus, Bates (D. of York I.). 



TxPE, Dipelicus cantori, Hope (Java). 



Kan'je. Tropical Asia, Polynesia and Australia. 



Form very convex and moderately elongate, with rather short 

 legs. Head vertically truncate in front, with tuo slight teeth at 

 the lower edge and an elevated carina at the upper edge of the 

 truncature. Pronotum very convex above, with all the angles 

 blunt. Elytra sharply rectangular at the posterior angles. 

 Propygidium more or less lobed behind and bearing a broad 

 stridulatory file at the middle. Pygidium smooth and sliining. 

 Prosternum forming a free columnar process behind. Femora 

 short and broad, the hindmost very large, subglobose. Front 

 tibia armed with three very strong and sharp teeth occupying 

 nearly the whole outer edge. Four posterior tibiae short, rapidly 

 dilating, and truncate at the extremity, where they are fringed 

 with short close-set bristles. Front tarsi vei'y long and slender. 

 Middle tarsi moderately short. Hind tarsi very short, with the 

 first joint broadly triangular. All the claws minute. Spurs of 

 the hind tibia broad and leaf-like. Mandible small, not exposed 

 externally, and without teeth or notches. Maxilla rather long, 

 not very hairy, with six very sharp teeth internally ; the palpus 

 rather slender. Labium long, with the terminal part almost 

 quadrate and the palpi short, the basal joints minute and the 

 terminal joint large and globose. 



d . The vertical front of the head is sharply acuminate above. 

 The pronotum is deeply excavated in front and the hind margin 

 of the cavity produced. The propygidium is greatly produced 

 behind, encroaching upon the pygidium. 



2 . The frontal carina is more or less notched in the middle. 



I have merged several supposed genera under the common name 

 of Dijielicus, the various types passing one into the other. The 

 only differences pointed out by tlie authors are sexual features of 

 no value for generic division. Thus Neodijielicus is based upon 

 females only, and the type of B. /irts?<iH*, Bates, although said to be 

 a male, is evidently a female. 



