Coleojjterous Group " Ileptapliylliui." 31 



for a single species, unknown to the author, but characterized 

 by the possession of tarsi with only four joints, a phenomenon 

 unknown in any other Lamellicorn beetle. Referring to the 

 original description by Friedenreich of this anomalous beetle, 

 in tlie '■ Stettiner entomologische Zeitschrift'' for 1883 

 (p. 375), I was glad to find not only the beetle but also its 

 larva described in detail. Many of the characteristics of 

 both, however, are such that I have no iiesitation in rejecting 

 the insect, not only from the Trogids, but from the Lamelli- 

 corn suborder. Ileptaphylla fungicola, Fried., is a minute 

 beetle found in fungi in Brazil. It is 2^ mm. long, and has 

 antennae of 11 joints, of which 7 are lamellate. The right 

 mandible is simple and acutely pointed, while the left is 

 strongly bifid. These, as well as its other structural features, 

 unmistakably identify it with the genus RhipidandruSj 

 Leconte [Eutomus, Lacordaire), belonging to the Malaco- 

 dermatous family Cioidce. The species hitherto placed in tliis 

 genus lange from the United States of America to the northern 

 part of ISoLith America, and Friedenreich's insect may be 

 regarded as another species extending this range farther 

 southward. The genus was characterized by Lacordaire 

 under the name of EiUomus in 1866 ; but Leconte's name, 

 although stated by Fleutiaux and Salle to be of later date, 

 was really published by him in 1862 in part 1 of his ' Classifi- 

 cation ot the Coleoptera of North America^ (p. 236). The 

 claim of the name lihipidandrus over the other two is there- 

 fore indisputable. A second genus, Cherostas, has been 

 created by Mr. Waterhouse for two Old- World forms very 

 nearly related to the American insects. They have the 

 lamellae of the antennal club much shorter, and all the tibia) 

 are armed with spines at their ends. Lacordaire's species, 

 Bhipidandrus micrographuSy which was described from 

 northern South America^ has been recorded from Guadeloupe 

 and St. Vincent. I have seen no specimens from the former 

 island, but those from the latter, which are in the British 

 Museum, do not agree with Lacordaire^s description, all the 

 tibise having spinose prolongations, while the antenna) have 

 the first joint quite short, instead of reaching to the middle of 

 the eye, and the lamellae quite short. It theretbre agrees 

 better with Cherostus, and I propose to call it 



Clerostus cornutus, sp. n. 



Breyiter cylindricus, piceus, clypco pedibusque rufis, antennis testa- 

 ceis, clypco la^vi, nitido, fronte grossc, baud profunde, sed crcber- 

 rirae punctata, medio late imprcsso, femina' deprcssioue brevitor 



