484 Mr. E. Bergrotli on 



colour-markings of the scutellum none o£ the numerous 

 varieties of artensis seems to be similar to the single known 

 specimen of the Bornean species. 



The species of Coleotichus principally inhabit the islands 

 of the Pacific Ocean. One species is known from Sumatra, 

 but none had previouslj been found in any of the other great 

 Sunda islands. 



Fam. Pentatomidae. 



Subfam. Arminm. 



Schouteden has divided Canthecona, Am. S., into two 

 genera, sej^aratiiig the Asiatic species as a distinct genus, 

 Catitheconidea. The latter genus he divides into two sections, 

 A and B, corresponding to Stal's division aa and aaa of 

 Canthecona. These sections differ much more inter se than 

 the section B of Cantheconidea differs from Canthecona, and 

 must in my opinion be regarded as distinct genera with the 

 following characters : — 



The sides of the metasternum strongly cari- 



nately raised above the level of the coxae, 



freely produced forward and backward 



between the coxae. Tibiae cylindrical, only 



toward the apex flattened or slightly sulcate. 



The males with no sericeous patches ou the 



venter ; apical margin of sixth male ventral 



segment broadly bisinuate. (Type : Cjavana, 



Dall.) Cantheconidea, Schout. 



The sides of the metasternum a little raised, but 



not produced forward and backward. Tibiae 



conspicuously sulcate down their whole 



length. The males with a large sericeous 



(stridu^atory ?) patch on each side of the 



venter extended through the fourth and fifth 



segments ; apical margin of sixth male ventral 



segment broadly unisinuate. (Type: C.fur- 



cillata, Wolft') Eocmithecona, gen. nov. 



Asopas chrysopterus, H. Sch., from the island of Guam, 

 has remained unknown to later authors, but has in all 

 cataiooues been placed in Canthecona, and later in Canthe- 

 conidea ; yet from the description and figures, and from the 

 fact that Herrich-Schaffer placed it in a division characterized 

 by *' Vorderscheiikel ohne Dorn," it is clear that it has 

 nothing to do with this group of genera. There can be 

 little doubt that it belongs to an uudescribeJ genus. 



