642 Coleopterological Notices, VII. 



mentum very nearly 3^ as wide as the entire head, the lobes very strongly and 

 obliquely cariniform. Frothorax as in mniszechi, but with the apical angles a 

 little less rounded. Elytra suboval, more vertical at the sides than in mnis- 

 zechi and flattened above, finely and feebly striate, becoming deeply so inter- 

 nally ; striae finely punctured toward the sides and apex, but impunctate, or 

 with the faintest trace of punctures, toward the suture. Under surface as in 

 mniszechi, except that the intermediate tibiae generally have but two external 

 spinules, the posterior one. Length of body <? 73.0; width of head 21.5;. 

 length of prothorax 20.0, width 27.5; length of elytra 37.5, width 26.3 mm. 

 Length of body J 66.0; width of head 20.0; length of prothorax 18.0, width 

 24.5; length of elytra 33.0, width 25.8 mm. Honduras. 



Larger and more elongate than mniszechi and with notable di- 

 vergence in the structure of the mandibles, mentum and elytral 

 striae. The minute tubercles near the frontal margin are more 

 widely separated than in mniszechi, and, in that species, the men- 

 tum is smaller, being but slightly more than ^ as wide as the head 

 and the elytra more evenly convex, with the striae not much deeper 

 toward the suture and having the strial punctures equally distinct 

 throughout. In magister the male is larger than the female, with 

 larger head and prothorax and notably more elongate elytra, while 

 in mniszechi the two sexes are much more similar in shape, the 

 head and prothorax of the male being simply a little larger. The 

 mandibles and antennae are not affected sexually. I have before 

 me both sexes of the two species here compared. 



Proculejoides crassulus. — Stout and very convex, highly polished 

 throughout and deep black, the pubiferous punctures of the inflexed sides 

 of the prothorax fine and only moderately dense, wanting internally to- 

 ward apex ; metasternum and elytra completely glabrous ; tibiae sparsely 

 pubescent externally. Head slightly more than % as wide as the pro- 

 thorax, the ambient posterior impression feeble ; horn narrow, small and 

 cariniform, with a small angulate and slightly prominent elevation at each, 

 side, the tip horizontal and but just visibly protuberant over the frontal 

 impression, the latter limited by very broadly swollen, extremely widely 

 diverging and indefinitely limited ridges ; clypeal margin straight and 

 transverse, with a minute and very feeble median sinus and ending at 

 lateral fourth in an acute tubercle, the margin thence angularly receding to 

 the eyes ; supra-ocular ridge large, cariniform above, longitudinally excavated 

 at its posterior end ; labrum sparsely punctured toward tip, the latter almost 

 rectilinear ; mandibles broadly angulate on the upper edge, the apex triden- 

 tate, with the two upper teeth much more advanced ; scar of the mentnm 

 feebly defined ; antennal club trilobed, the lobes slender, the first joint 4 timea 

 as wide as long, the second nearly similar, the third evenly arcuate externally, 

 3 times as wide as long. Prothorax slightly more than )4 wider than long, 

 the apical angles obtuse but only slightly rounded, the apex transverse ; mar- 



