598 Longicornia Malayana. 



of the elytra ; * (2) — The prothorax unarmed ; and (3) — 

 The basal joint of the posterior tarsi at least a third longer 

 than the two next together. It is also necessary that the 

 anterior cotyloid cavities be open behind^ and those of 

 the intermediate angulate outwardly. Even thus limited, 

 the Glytince are one of the largest and most dispersed of 

 all the subfamilies of Longicorns. They are mostly 

 active, gaily-coloured insects, frequently with lines or 

 bands of yellow or white on a dark ground, sometimes 

 forming a pattern of complicated character very difficult 

 to describe. 



Genera. 



Elytra vertically declivous posteriorly. . . Sclethrus, Newm. 

 Elytra not vertically declivous. 



Prothorax globose ...... Clytus, Laich. 



Prothorax oblong. 



Head with one or more raised lines in front. 



Elytra with epipleiaraj. .... XylotrecJius, Chev. 



Elytra without epipleurte . . . Thranodes, Pasc. 



Head without raised lines in front. 

 Antenna approximate at the base. 



Posterior tarsi stout. . . . Clytanthus, Thoms. 



Posterior tarsi slender. . . . Rhapliuma, Thoms. 



Antennae not ajjproximate at the base. . Perissus, Chev. 



{Genera mcertce sedis.) 



Demonax, Thoms. 

 Acrocyrta, Pasc. 



Clytus. 



Clytus, Laicharting, Tyrol. Insekt. ii. 88 ; Lacordaire, 

 Gen. ix. 67. 



Caput antice verticale, planatum, paulo productum. 

 Oculi emarginati. Antennce corporis dimidio gequales, 

 muticae, subfiliformes, articulo tertio reliquis paulo 

 longiore. Protliorax subglobosus. Elytra vix elon- 

 gata, subcylindrica, apicibus truncatis. Pedes me- 

 diocres, postici elongati ; femora in medio incrassata ; 

 tarsi postici articulo basali caeteris conjunctim gequali, 



* Species of four genera, however, viz. : — Cyllene, Euryscelis, Perissus, 

 and Sarosesthes, have the antennas in the males nearly as long as or longer 

 (in Cyllene nebulosa) than the body. All these genera are included in the 

 Clytince. The last named species has also a distinct tooth on each side of 

 the prothorax. 



