Genus and Species o/'Kutelidte. 



423 



zoologist is familiar with the enoniious horns v/hich arise from 

 the head or pronotum, and even from both these parts in the 

 same species, in the males of so many members of this great 

 family of Coleopterous insects ; but no species have hitherto 

 been described in which the mandibles are the seat of an 

 analogous sexual distinction ^ nor, indeed, are any known in 

 which tliese organs project beyond the head to any notable 

 extent: "jamais elles ne depassent notablement le chaperon 

 en avant," remarks the great systematist * of the Coleoptera, 

 when discussing the mouth-parts of Lamellicornia in general. 

 In this fine new insect, however, the apical one of the two 

 teeth into which, in most of the true llutelida?, the extremity 

 of the mandibles is externally divided, is enormously produced 

 and curved forwards f;ir in front of the head, much after the 

 manner of the tusks in several extinct elephants. In Pepe- 

 ronota Harringtonii, Westw,, its nearest ally, the secondary 

 sexual characters of the males take a different form, the middle 

 of the hinder margin of the pronotum being in this case pro- 

 duced backwards, upwards, and downwards into a hugedecurved 

 horn, the extremity of which is lodged in a depression of the 

 suture of the elytra. 



I beg to propose for this remarkable form the name of 



Didrepanephorus hifalcifei'-\^ gen. et sp. nov. 



Body short and thick-set as in Peperonota and Parastab a. 

 Integument brown, covered with a very short and moderately 



* Lacordaire, 'Gen. des Coleopteres,' t. ii. p. 51. 



t From hi-, "two," et dpeTrai/^j^idpos, "bearing a sickle"' (apfix hpenavt]- 

 ^opov, Xen. Anab. I. 10) ; and bi-, "two," etfalcifcr, "bearing a sickle.'^ 



