318 A. H. Yerrill — New Species of Dynastes. 



In the arrangement of thoracic horns it resembles D. Nejp- 

 tunus from South America, but from this species it differs 

 very materially. It appears to be very rare in Dominica, for 

 during two years collecting in the island I have procured but 

 few specimens, and it is unknown to most of the natives, who, 

 as a rule, are fairly familiar with the fauna of the island. 



Dynastes Lagaii sp. nov. Figure 1. 



Male. — Much smaller than either Dynastes Hercules or 

 Vulcan and averaging scarcely if any larger than Dynastes 

 tricornis. 



Elytra brownish olive, with a bright metallic luster in living 

 specimens, sparsely and irregularly spotted with circular mark- 

 ings of deep brown, most numerous near the posterior extrein- 



Figxjre 1. Dynastes Lagaii. Male, natural size. Type; phot. A. H. V. 



ity and lateral and anterior edges. Thorax, head, abdomen, 

 legs, ventral surface, edges of elytra and a broad band across 

 anterior portion of elytra, rich chestnut-brown. Thorax with 

 a short, cylindrical, slightly curved process. 



Head with a stout, short, crescent-shaped process. Thoracic 

 "horn" with a minute, scarcely perceptible process on either 

 side at base. Occipital " horn " without protuberance of any 

 sort except a very minute notch or tooth on the dorsal surface 

 near the base. 



Entire dorsal surface thickly and conspicuously pitted' and 

 everywhere covered with short, yellowish brown hair which 

 becomes longer and conspicuous around the base of the occi- 

 pital process, posterior portion of thorax, and along the 

 median line of elytra. Ventral surface of thoracic process 



