COLEOPTERA. 431 



Here the praesternum is not prolonged into a point, and there is 

 no anterior cavity in the mesosternum. 



Sometimes all the joints of the tarsi are entire, and without a pro- 

 jecting membranous palette underneath. 



Anelastes, Kirby. 



The antennae remote at base, short, almost granose, with the last 

 joint * nearly crescent-shaped ; last joint of the palpi almost in the 

 form of a reversed cone. 



A. Drurii, Kirb., Lin. Trans., XII, xxi, 2. The only species 

 quoted. 



Callirhipis, Lat. 



The antennae closely approximated at the base, inserted on an emi- 

 nence, and from the third joint, in the males, forming a large fan ; 

 the last of the palpi ovoid, the same of the tarsi almost as long as 

 all the others taken together, and presenting between its ci'otchets a 

 little silky and linear appendage. 



The species which is the type of the subgenus — C. Dejeanii — 

 is found in Java, and was sent to the Museum of Paris by M. 

 Diard and the late M. Duvaucel. The antennae consist of but 

 eleven joints, and in that differ from those of the Rhipicerae, 

 which have the same form, but are composed of more joints in 

 individuals of the same sex or the males. 

 Sometimes the inferior surface of the tarsi is furnished Avith mem- 

 braneous palettes, or their penultimate joint is profoundly bilobate. 



In the two following subgenera, the inferior surface of each of the 

 four first joints of the tarsi presents two membranous and projecting 

 lobes ; the last is long, and terminated between the crotchets by a 

 little silky appendage. The antennae of some are composed of more 

 than eleven joints, and are flabelliform ; those of the others consist of 

 eleven, and are serrated, the four last larger, and forming a club. 



Sandalus, Knock. 



The antennae, at least those of the females, only a little longer 

 than the head and consisting of eleven joints, the third, and with 

 the exception of the last, the following ones serriform, the four last 

 somewhat more dilated, forming a club ; the terminal joint almost 

 ovoid or rounded, or very obtuse at the end f . 



Rhipicera, Lat. Kirby. — Ptyocerus, Hoff. — Polytomus, Dalm. 



The antennae flabelliform in both sexes, and composed of numer- 

 ous joints (from twenty to forty), but fewer in the females. 



* The third is longer thaa the preceding and following one, -whilst in Cebrio, this 

 joint and the second are shorter than the fourth and following ones. These organs, 

 like those of the Elaterides, seem to be composed of twelve joints, the eleventh being 

 suddenly contracted near the extremity, and terminated by a point having the 

 appearance of a little conical or triangular joint. 



t Sandalus petrophya, Knoch, N. Beyt., I, p. 131, v. 5,— ^ S. niger, Id. lb. 



