4 Mr. C. O. Waterliouse's descriptions of 



lobe and tlie eye is entirely occupied by a round, ratlier 

 deep, sliining excavation, and on tlie outside of this excava- 

 tion is a triangular notch, which is an outlet of the excava- 

 tion beneath the head in which the antennee are inserted. 

 Thorax nearly ^ broader than long, scarcely narrowed in 

 front, all the angles rounded ; the disk (which has a central 

 longitudinal impression) is thickly, closely, and somewhat 

 roughly punctured ; the lateral margins are almost impunc- 

 tate and are slightly reflexed. The elytra are very 

 strongly, rather thickly, and irregularly punctured ; the 

 margins at the base are slightly reflexed. The legs are 

 short, compressed, and shining ; the tarsi are very short, 

 slightly narrowed towards their apex. 



Hab, — Batchian (J. C. Bowring, Esq.). Brit. Mus. 



ELATERIDiE. 



Alaus nodulosus, sp. n. 



Elongatus, piceo-niger, opacus, dense fulvo-tomentosus ; 

 thorace longitudine ^ angustiori, antice vix angustato, 

 margine antico medio binodoso; elytris basi thorace vix 

 angustioribus at duplo longioribus, apicem versus gradatim 

 angustatis ; singulo elytro plaga laterali nigra. 



$. Elytris ad apicem emarginatis; abdominis segmento 

 quinto apice truncate. 



$ . Elytris ad apicem vix truncatis ; abdominis segmento 

 quinto apice rotundato. 



Long. 11—16 lin. ; lat. 3^ — 4f lin. 



Closely allied to A. initridus, and like it in form and 

 appearance. The thorax is of the same form and similarly 

 raised along the middle, but the anterior margin is fur- 

 nished with two approximate tubercles v/hich project over 

 the head (much larger, more prominent, and closer toge- 

 ther than those in A. putridiis) ; the elytra are more or less 

 spotted with brown, and have a large broAvnish-black spot 

 on the lateral margin; there is also an elongate paler spot 

 near the base of the 4th interstice. 



In the male the apex of each elytron is emarginate as 

 in A. putridus; the penultimate segment of the abdomen 

 is truncate. The female has the apex of the elytra nearly 

 rounded, and the penultimate segment of the abdomen is 

 rounded at the apex. 



Hah, — Andaman Is. (R. Meldola, Esq.) Brit. Mus. 



