oj some Exotic Lamellicorn beetles. 33 



Pedes medlocres, tibite anticas extus 4-dentatis, tibia3 

 intermedite et posticas dentate. 



Having in the 4tli volume of the Transactions of the 

 Entomological Society published the characters of some 

 interesting forms of Lamellicornia allied to Phileurus^ 

 I have the gratification of adding another equally curious 

 from Nicaragua, collected by Mr. Belt at Chontales. It 

 appears most nearly allied to Actinoholus (1. c. PL II. 

 fig. 2) in the structure of the maxilla and mentum, but 

 the front of the head in that genus (ib. fig. 2b) is radiated, 

 whilst the mandibles (ib. fig. 2d) are armed above only 

 with a short obtuse tooth. The males of Leptognatltus* 

 (ib. fig. 4) have the front of the pronotum rather retuse, 

 but the fi'ont of the head is bilobed in both sexes, and the 

 mandibles (ib. fig. 4«) have the outer lobe produced to a 

 fine point, and the inner lobe large, oval and setose, the 

 maxillte also (ib. fig. 4e) want the strong armature of the 

 apical lobe. 



Species unica, Ambhjodus taurus, n. sp. (PI. II. fig. 1.) 



Niger, nitidus capitis cornubus glabris supra deplanatis 

 apice extus elevato-curvatis obtusis, pronoto antice retuso, 

 varioloso rugoso ; postice glabro utriuque elevato, angulis 

 posticis acutis punctatis, elytris punctato-striatis. 



Long. Corp. lin. 11. 



Habitat in Nicaragua, Chontales. D. Belt. 



Genus Pantodinus, Burm. 



Pantodinus Klugii, Burmeister Handb. d. Ent. v. 

 p. 291. (PI. II. fig. 2a.) 



No figure of this very interesting insect having hitherto 

 been published I have taken this opportunity of giving a 

 representation of it, together with its trophi,from sketches 

 made by Dr. Burmeister. The genus was founded on 

 an unique male from Guatemala in Mr. Melly's Collec- 

 tion, and was placed by its author in conjunction with the 

 genera Lejitognathus (under the name of Crypiodontes) 



* I do not recognize the necessity of rejecting the name Leptognatlms, 

 ■which I proposed for this genus (in order to avoid the confusion ai'ising 

 from the use of the name Cnjptodon, given to it in MSS. by Latreille, with 

 that of Cryjitodus, given to another Lamellicorn gemis by MacLeay), in 

 consequence of there having been a genus of fishes previously named 

 Lej}to(jnathus by Swainson. 



TRANS. ENT. SOC. 1878.— PART I. (aPR.) D 



