from the Eastern Archipelago. 203 



aa, A pectoral canal passing behind tlie anterior cox£e. 



s. Pectoral canal gradually eifaced behind. 



t. Kostrum in repose extending to the abdomen ITiyestetha, Pasc. 



it. Rostrum in repose not passing beyond the interme- 

 diate coxiB Telmtffia, n. g. 



ss. Pectoral canal limited behind. 



u. Intercoxal process veiy broad, the posterior coxae 

 close to the elytra. 



V. Metasternum of moderate length, intermediate and 

 posterior coxse on each side not approximate. 



to. Femora canaliculate beneath, receiving the tibiae in 



repose Idotasia, n. g, 



7VW. Femora not canaliculate beneath Semiathe, n. g. 



vv. Metasternum very short ; intermediate and posterior 

 coxje on each side nearly contiguous. 



.r. Pectoral canal not extending to intermediate coxae . Xychitsa, n. g. 



XX. Pectoral canal extending to the posterior border of 



the intermediate coxae Elichora, n. g. 



uu, Intercoxal process narrower; posterior coxae not 



near the elytra Nyphceba^ n. g. 



Mecopus. 



Sclionherr, Disp. Meth. p. 304; Lacordaire, Gen. vii. p. 157. 



The new species of this genus described below are all very- 

 distinct, and cannot possibly be confounded with any others. 

 This is not the case with M. hisjnnosus'^, Weber, on which 

 the genus is founded, and from which I cannot separate M. 

 Audmeti, Rid. Of the numerous examples in my collection, 

 from seventeen localities, extending from Java and Singapore 

 to New Guinea, I am unable satisfactorily to separate appa- 

 rently different forms which, if taken without the intermediate 

 individuals, would seem to represent good species. Here 

 " natural selection " may be said to have failed to strike out 

 connecting varieties, without which any such graduated series 

 of forms can be considered only to represent a single spe- 



but the following species, not uncommon in Indian collections, brings it 

 into our table : — 



Sphadasmus brahmintis. 



S, breviter ovalis, fuscus, infra griseo-squamosus ; rostro prothorace bre- 

 viore ; funiculi articulo prinio secundo duplo longiore, tertio secimdo 

 fere aequali ; prothorace transverso, subconico, regulariter convexo, 

 medio et utrinque griseo-squamoso ; elytris profunde striato-punctatis, 

 interstitiis latis, convexis, basi ligura transversa triloba, plaga laterali 

 et maculis conjunctis in medio et pone medium sordide griseis notatis; 

 pedibus squamis filifornxibus vestitia. Long. 4j lin. 



Hah. Bengal. 



* Rhynchcenus hispinosiis, Fab. (Syst. El. ii. 475), quoted in Schiinhorr, 

 is surely very diflerent from this. Fabricius connects it with Cionus. 



