TRACHELIZUS CYLINDRICORNIS. 187 



NOTE XXII. 



DESCRIPTION OP A NEW SPECIES OF THE FAMILY 

 BRENTHIDAE FROM SUMATRA. 



G. POWER. 



Trachelisus cylindricoriiis , sp. n. 



Omnino castaneo-fuscus , parurn nitidus, sutura macu- 

 lisque 2 obsoletis in elytris magis saturatis. Capite lati- 

 tudine vix breviore , autice angustiore , ad basiu tuberculis 

 4 instructo ; rostro supra infraque sulcato , ad apicem parum 

 dilatato ; antennis ante rostri medium insertis , subcylin- 

 dricis , artieulis 2 — 8 transversis, perfoliatis , 9 — 10 magis 

 elongatis, 11 longitudine duobus precedeutibus conjuuctis 

 fere aequali acuteque attenuato. Thorace sulcato, impunc- 

 tato, Elytris subparallelis , apice rotundatis ibique prope 

 suturam leviter excisis , profuude sulcatis. Corpore subtus 

 impunctato, metasterno abdominisque segmentis duobus pri- 

 mis sulcatis. — Long. Vj^ mm., lat. 1^/. mm. 



Entirely of a chestnut color , hardly shining. The head 

 is rounded above, about as long as broad and narrower 

 anteriorly than at the base , where it is provided with four 

 protuberances with notches between them. Eyes large, 

 rather prominent and touching the base. Rostrum about 

 2^/2 as long as the head, furrowed from the base nearly 

 up to the apex , Avhich is very little dilated ; at the under 

 surface the head and the basal portion of the rostrum are 



Notes from the Leyden. ]VIuseuiTi, "Vol. II. 



