FIFTH CONTRIBUTION TO THE COLEOPTERA FAUNA OF THE 



PHILIPPINES 



By W. SCHULTZE 



(Manila, P. I.) 



ONE PLATE 



The genus Alcides Dalmann has been so far represented in 

 the Philippine Islands by the following species: 



A. 



albocinctus Blanch. 



A. 



pectoralis Bohem. 



A. 



burmeisteri Bohem. 



A. 



rutilans Roel. 



A. 



crassus Pasc. 



A. 



semperi Pasc. 



A. 



decoratris Eoel. 



A. 



septemdecimnotatus Roel, 



A. 



delta Pasc. 



A. 



smaragdinus Roel. 



A. 



leucospilvs Erichs. 



A. 



waltoni Bohem. 



A. 



ocellatiis Roel. 







The above list seems rather small, in view of the fact that most 

 of the Philippine Alcides are conspicuously colored and marked. 

 Due to their peculiar coloration several authors ^ have mentioned 

 certain species of the above genus in comparison with species of 

 the almost exclusively Philippine genus Pachyrrhynchus. The 

 diversity among certain groups of species ^ of the genus Alcides 

 found in the Philippines as well as among those of other locali- 

 ties is noteworthy. For that reason it would be well to divide 

 this large genus into subgenera should it be treated mono- 

 graphically. 



In the Philippine Islands three main groups ^ of species of 

 Alcides are easily recognized, besides certain rather isolated 

 forms. The first and largest group comprises species that are 

 subcylindrical in general appearance, such as A. albocinctus 

 Blanch, and A. delta Pasc. The second group consists of rather 

 stout species, having greater shoulder width than forms of the 

 first or third group and having for the most part, a conspicuous 



* Pascoe, Journ. Linn. Soc. London (1870), 10, 462. Roelofs, Tijdschr. 

 voor Entom. (1893), 36, 34. Bovie, Wytsman's Genera Insectorum (1908), 

 fasc. 71, 2. 



'Pascoe, Ann. & Mag. Nat. Hist. (1882), 9, 451. 



' This statement is based on over forty Philippine species of Alcides 

 in my collection. 



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