;i/6 STAG-BEETLES (FAAf. LUCANIDAE) 



Gn. velutino 9 appropinquat, sed illo maxime differt : 1. 

 mandibnlis supra canaliculatis, clypeo producto rotundatoqiie, 

 mento rugoso ; 2 capite longitiidinaliter depresso et tuberculo 

 instructo ; 3. prothoracis latitudine lateribus hand parallelis ; 

 4. interstitiis elytrorum lineis 2 longitudinalibus a basi fere 

 usque ad apicem instructis ; 5. tibiis intermediis posticisque 

 unidentatis. 



Lonoitudo corp. 17 mm ; latitudo elytr. 7 mm ; 



Hab. Mons Dulit (Sarawak) Borneo Septentr. 



This species is allied to Gn. velutinus Thorns. (Ami. Soc. 

 Ent., France (4) ii, 1862, p. 426), but clearly distinguished 

 from it by several characteristic signs. The head is more 

 finely punctured, the clypeus porrected and rounded, not broad 

 and short. Between the eyes we may observe a longitudinal 

 groove and in the middle of the head is provided with a 

 transverse oval tubercle. The mandibles are channelled and 

 not rounded on the upperside ; if they are closed, the clypeus 

 fills out the whole space* between them. Mentum rugose. 

 The prothorax is smoother, its sides convergent anteriorly. 

 The squamose 5 costae upon each elytron are not developed so 

 distinctly as in Gn. velutinus, but the two intermediate lines 

 between the costae reach from the base nearly to the tip, 

 which is rounded. The undersurface is brown and deeply 

 punctured and rugose ; each point bears a golden bristle, which 

 is short on the abdomen, but longer on the metasternum. The 

 four posterior tibiae are armed somewhat below the middle 

 with one spine. 



1 9 • The type in the Sarawak Museum's collection. 



Aegotypus Parry. 



1. Ae. trilobatus Parry. 



Pro. Ent. Soc. London 1862, p. 113; Trans. Ent. Soc. London, (3) 

 II, 2864, p. 59, t. 7, fig. 7 cf; 1. c. 1874, p. 371. 



Mt. Murud, 11 cf , 4 9 . Mt. Duilt, 1 cf , 2 9 . 



Male specimens in all degrees of development from 11—13, 

 5 mm. Major Parry has said in his diagnasis from the mandi- 

 bles : "mandibulis robustis, intus ad basim unidentatis". The 

 mandibles of the largest males are slender, but they have 2 

 small teeth near the base ; in all other parts they are completly 

 conformable with the smaller specimens. 



