l)i;S( IMI'TKtNS OK NKW (il-M-l.'A AM) SI'KCM-S 

 OF I>oN(iI<dl{\ r'oi.EOI'TI-K A IHo.M Si MA ili A 



By C. J. (i A II AN 



The now sjH'cios ot" Loii.ii'iconiia dcscriliod in tlio followinjj: 

 ])ai)oi' nre tliose oljtainod 1)y Dr. Beccari and Dr. Modij^liani in tlic 

 coui'se of their journeys tln'ough Sumatra and the adjacent small 

 islands. Some of these species collected at Engano I. were obtained 

 there also by Mr. Doliert}-. The latter made liowevor, a nuich 

 more extensive colloction of Longicornia in Perak, and when this 

 collection has been fully worked out, we shall l)e in a better 

 position to compare the Longicorn fauna of Sumatra with that of 

 the Malay Peninsula. 



PRIONALLUS iiCM. iiov. 



Female. Antennal tubercles jirominent. flallorod aliove, sepa- 

 rated from one anotlier by a distinct interval, and (^ach encircled 

 at th(^ l)as(> on the inner side by a narrow groove; the interval 

 l)etwoon llioin marked by a deep longitudinal furrow which extends 

 forwards lo the cly])ous and backwards to the occiput. 



Eyes transverse, feebly emarginate in front. Antennae reaching 

 beyond the iiuddle of the elytra ; scajK' moderately long, gradually 

 thickened 1(» ilio apex: third joint a little longer than the scape; 

 fourth scarcely more than half as long as the third, fifth to tentli 

 gradually decreasing in length, eleventh a])()ut one lialf longer 

 than th(! tenth. Protliorax with three spines on each side, one 

 al)out midway i)etween the middle and anterioi- margin, tlu' 

 remaining two, diverging from a connnon elongate base which 

 arises from the middle of the sidi' ; disk \\ilh two closely appro- 

 ximated shining tubercles ]>laced just ixdiind the middle. Scutcdlum 

 rather broad, obtusely rounded behind. Elytra obli(pie at the 

 shoulders, somewhat widened at the middle and roiuided at the 

 ai)ex : the lateral margins turned up so as to fi»rm a channel («n 



