DYNASTIN^E 245 



and there are three or four regular double series of more close-set 

 punctures, the series completely unimpressed. 



Group II. 

 Subgenus Strategodes nov. 



The species of this subgenus can be distinguished at onoe from 

 all those of Strategus proper by the smaller and broader, rather less 

 convex body, higher and more slender mandibular teeth, more 

 slender, generally much longer and more curved posterior horns 

 of the prothorax, general absence of the sutural stria of the elytra 

 and other features, giving to them a marked peculiarity of habitus. 

 In the structure of the apex of the hind tibiae the two groups are 

 radically different; the crenulation of the external sinus sometimes 

 becomes nearly obsolete, but in all cases the four stiff setae remain in 

 their full normal development. Mormon Burm., although a re- 

 markably isolated species, is a member of this subgenus quite 

 unmistakably, or else constitutes a special subgenus allied thereto t 

 and why it should have been associated more particularly with 

 splendens, which, excepting in the strong sutural stria, it resembles, 

 in scarcely any other than a superficial way, is not easy to under- 

 stand. The species are rather numerous, those in my collection 

 being as follows: 



Elytra without a sutural stria, except at and near the apex; middle tooth 

 of the mandibles differing sexually, moderately high and slender in 

 the male, much shorter in the female 2 



Elytra with a coarse and deep entire sutural stria; middle tooth of the 

 mandibles very long and slender and similar in the sexes 8 



2 Sides of the prothorax toward apex not or only very feebly sinuate. . 3 



Sides deeply or at least very distinctly sinuate toward the apex, which 

 is sometimes almost subtubularly produced 7 



3 Posterior thoracic horns widely diverging. Body large, oblong, 

 polished, black, the elytra blackish-castaneous, the under surface 

 paler, castaneo-rufous, the legs and tarsi slightly more obscure; 

 head small, very coarsely, densely rugose, smooth at base, the tip 

 of the clypeus smooth and with sparse punctures; front with a fine, 

 feebly elevated, transverse and irregular raised line, not attaining 

 the sides; clypeus at apex not reflexed, the apex broadly rounded, 

 with a very acute reflexed median angulation: middle mandibular 

 tooth about twice as high as wide, rounded at tip; antennal club 

 not as long as the preceding six joints, the under face of its first joint 

 evenly convex, not medially angulate as in the preceding subgenus; 

 mentum convex, extremely coarsely punctate and subrugose, with 



