620 Longicornia Malayana. 



apice haud clavatis ; scapo breviusculo ; articulis3-ll 

 plus minusve aequalibus (tertio breviori excepto), 

 3 et 4 apice spinosis, ultimo integro. Prothorax elon- 

 gato-ovatus, muticus. Elytra elongata, subparallela, 

 apicibus truncatis. Pedes elongati, antici brevius- 

 culi ; femora leviter incrassata ; tihiee rectae ; tarsi 

 postici articulo basali duobus sequentibus conjunc- 

 tim duplo vel triple longiore, Acetahula intermedia 

 extus angulata. Abdomen elongatum. 



As I have already stated, M. Thomson, in his latest 

 work (Syst, Ceramb. p. 191), unites this genus to Acro- 

 cyrta, from which it appears to me to be essentially dif- 

 ferentiated by the form of its antennaB (the joints not 

 thickened or clavate at the tips, as in Acrocyrta), the 

 longer elytra, and the different habit. The genus 

 thus limited contains a number of species, the greater 

 part sufficiently homogeneous, but including at present 

 two or three forms which I hesitate to propose as genera 

 in the absence, in the limited number of specimens be- 

 fore me, of any trenchant characters that can be relied 

 on as permanent, although they evidently belong to 

 distinct natural groups. 



Demonax nigro-fasciatus. 



J. Thomson, Essai, p. 227 (1861) . 



Clytus jpatromis, Pascoe, Journ. of Ent. i. 358 (1862). 



D. flavo-ferrugineus, elytris pallidioribus, nigro-trifas- 

 ciatis, fasciis duabus basalibus obliquis interruptis ; 

 subtus omnino unicolor. 



Hah. — Batchian. 



Yellowish-ferruginous, paler on the elytra; prothorax 

 oblong-ovate ; elytra with three black bands, the first two 

 interrupted in the middle, oblique, the last transverse ; 

 body beneath, and legs, yellowish-ferruginous; antennae 

 ( cJ) longer than the body, yellowish at the base, paler at 

 the extremity, darkest in the middle. 



Length 7 lines. 



Demonax prcecursor. 



D. flavo-ferrugineus, elytris pallidioribus, nigro-trifas- 

 ciatis, fascia prima interrupta, lata ; subtus flavo- 

 ferrugineus, utrinque maculis tribus ochraceis. 



