36 Mr. C. 0. Waterhouse on new Pectinicorn Goleoptera. 



late in outline, very narrow towards the scutellum and at the 

 extreme apex. 



$ . This resembles the female of M. occipitalis, but is more 

 strongly punctured throughout, the punctuation at the sides 

 of the thorax (and especially at the anterior angles) being 

 coarse and crowded together, whereas in M. occijritalis the 

 punctures are separated from each other. The spot on the 

 disk is large, and in one specimen extends from the base to 

 the anterior margin. The elytra have the black at the suture 

 very broad at the middle (about 2 lines in width), gradually 

 narrowed to the scutellum and apex. 



Dorcinm. 

 JEgus Bcepstorffi. 



2E. acuminato affinis et similis. Piceo-niger. 

 $ var. max. Sat nitidus. Mandibulis capite longioribus, arcuatis, 



depressiusculis, basi dente valido, medio dente parvo instructis. 



Capite tboraceque minus nitidis. Elytris fortiter punctato- 



striatis, interstitiis parce subtilissime punctulatis, marginibus 



rugoso-punctatis. 

 Long. (mand. incl.) 14^ lin. 

 c? var. minor. Mandibulis medio dente nullo. Capite thoraceque 



fortiter punctatis. Elytris interstitiis crebre sat fortiter punc- 



tatis. 

 Long. (mand. incl.) 8 lin. 

 2 • Capite thoraceque crebre fortiter rugoso-punctatis, hoc lateribus 



arcuatis, ante basin oblique sinuatis. Elytris striatis, interstitiis 



crebre fortiter seriatim punctatis ; lateribus leviter arcuatis. 

 Long. 7-9 lin. 



Hah. Andaman Islands (Rapstorjf) . 



This species is very similar to 2E. acuminatus. The large 

 males may at once be distinguished by the position of the 

 tooth at the middle of the inner margin of the mandibles. 

 The punctures on the thorax are rather larger. The elytra 

 have the strife more strongly punctured, but the margin has 

 only a narrow border of very strong punctuation. The 

 smaller males with simple mandibles have the head and thorax 

 more strongly punctured than the females of JE. acuminatus. 



JEgus Curtisii. 



d . Nigro-iuscus, parum nitidus, subtus rufo-piceus. Mandibulis 

 capite paulo longioribus, ad apicem arcuatis, basi dente sat valido 

 acuminato, medio supra dente minore instructis. Capite sat 

 opaco, antice trisinuato, subtiliter sat crebre punctulnto, genis 



