110 Rev. F. W. Hope on some rare and 



provisionally named sulphureus, plumbeus, argillaceus, cervinus, and miniatus. 

 The three first are from Assam, the next is from the Tenasserim coast, and 

 the last from Japan. The oriental Monohammi evidently belong to a peculiar 

 section, and should be separated from the European species and formed into 

 subgenera. 



Purpuricenus. 



Sp. 12. Purpuricenus rubripennis. Tab. X. fig. 6. 



Violaceus, elytris rubro-marginatis macula subquadrata in medio disco insig- 

 nitis, pedibus concoloribus. 



Long. lin. 15 ; lat. lin. 4. 



Habitat in Silhet. 



Antenna nigro-violaceae. Thorax concolor, rugosus et tomentosus. Scutellum cyaneum. 



Elytra rubro-miniata, maculis irregularibus nigris insignita. Totum corpus infra vio- 



laceum. 



The genus Purpuricenus has not yet, I believe, been noticed as occurring in 

 the East Indies. The above insect deviates from the typical species : it may 

 remain, however, for the present arranged under that genus, until the species 

 are more thoroughly investigated. One from Gozo, near Bombay, in my col- 

 lection is named after Colonel Sykes, and a second, from Japan, is called 

 Titsingii by De Haan. It is probable also that Cerambyx sanguinolentus of 

 Olivier belongs to the same genus. 



Zonopterus*, Hope, n. g. 



Caput mandibulis arcuatis, fronte declivi, cornu brevi utrinque ad basin antennarum. An- 

 tenna e medio oculorum surgentes, ll-articulatae, articulo basali apice crassiori, 2do 

 minimo, 3tio longissimo, 4to fere dimidio minori, 6 sequentibus fere asqualibus, ultimo 

 longiori acuto. Thorax depressus, capite duplo longior. Elytra thorace triplo longiora, 

 parallela, apicibus rotundatis. Pedes femoribus 4 anterioribus incrassatis, posticis duplo 

 majoribus subcompressis ; tibiae posticae subincurvse. 



* From t,avr\ a belt, and Ttrepbv a wing, or belted winged beetle, a characteristic of the majority of the 

 species. 



