COLEOPTERA. 31 



maxillaries is elongated. The outer side of the two anterior tibiae 

 presents two teeth. 



Pl/ATYGENIA, MacL. 



The body much flattened ; thorax almost cordiform and Avidely 

 truncated at both ends; maxillae terminated by a pencil of hairs, the 

 internal lobe triangular and cmarginate at the end ; last joint of the 

 palpi ovoido-cylindrical ; montum almost square, emarginated in the 

 middle of its superior edge, and slightly on the sides ; inner sides of 

 the posterior tibiae densely pilose*. In 



Cremastocheilus, Knoch^ 



The thorax nearly forms a transversal square ; the maxillae are 

 terminated by a strong hooked or falciform tooth, with setae or little 

 spines in lieu of an inner lobe ; the last joint of the palpi is very long 

 and cylindrical ; and the mcntum in the form of a widened heart, or 

 of a reversed triangle, with its superior angles rounded and without 

 any sensible emargi nation f. 



There, the mentum is in the form of a much widened heart, with- 

 out a discoidal cavity, and its superior margin emarginate or sinuous. 

 The anterior extremity of the epistoma, in the males, is divided into 

 two lobes, in the form of truncated or obtuse horns. The thorax is 

 nearly orbicular. 



Goliath, Lam. Kirh. — Cetonia, Fah. Oliv. 



A subgenus which, according to M. de Lamarck, is composed of- 

 large and beautiful species, some of which inhabit Africa and the 

 East Indies, and the others, tropical America. Messrs. Lepeletier 

 and Serville — Encyc. Method., article Scarabei'des — have separated 

 the latter from it under the generic appellation of Inca. The epi- 

 mera is not prominent. The inner sides of the thighs of the two 

 anterior legs are furnished at base with a tooth and an emargination. 

 The middle of the superior margin of the mentum is strongly emar- 

 ginated ; this part in the true Goliaths presents four lobes or teeth, 

 two superior and the two others lateral. The labial palpi are in- 

 serted on its edges in the eniarginations of these latter lobes. All 

 the known species are large; but M. Verreaux, Jun., the nephew 



* Hor. Entom., I, p. 151 ; Trichius harhatus, Schoeaherr, Synon. Insect., I, iii, 

 App. 38. 



t Lat, Gener. Crust, et Insect., p. 121. M. Dupont, naturalist to the Duke of 

 Orleans, whose collection of Coleopterous Insects, next to that of Count Dejean, is 

 the most extensive iu Paris, has received from Lamana — French Guiana — an Insect 

 presenting all the essential characters of a Cremastocheilus, but iu which the epi- 

 mera or axillary pieces are more apparent when the animal is viewed from above. 

 The anterior tibiae are arcuated, and have a strong dentiform projection on the inner 

 side. All the tarsi are short, thick, cylindrical, and terminated by two very long 

 hooks. The anterior extremity of the epistoma is turned up in tlie manner of an 

 almost square blade. The posterior extremity of the head presents an elevatiou 

 divided into two teeth or tubercles. The Insect is about an inch long, black, with a 

 red spot on each elytron. 



The Cetonia elongata, of Olivier, appears to be a Cremastocheilus. 



