BY P. NAG EL. 



Aegus McLeav. 



877 



1. Ae. amictus Deyr. 



Ann. Soc. Ent. Belg. ix. 1865, p. 35, t. 2, fig. 8. 

 Mt. Muriid, 3 cf . 



2. Ae. falcicornis nov. spec. (Fig. 8.) 



cj' . Piceus, nitidus, Aeg. hamato Jakowl. appropinquans. 

 Capite transverso, opaco, teniiiter et sparsim pimctato, valde 

 fornicato, et in medio leviter depresso ; hie puncto singiilo 

 prof undo et magno instructo, lateiibus parallis, angulis 

 anticis posticisque rotundatis, margine antico late excavato. 

 Cantlio angustissimo. Mandibulis capite fere duplo longio- 

 ribus, valde incurvatis et elevatis, dente basali magno et 

 truncato, ante medium dente secundo instructis. Prothorace 

 transverso nee capite latiore, lateribus tenuiter punctatis et 

 postice convergentibus, in disco nitio, angulis anticis rotun- 

 datis, posticis truncatis. Scutello impunctato. Elytris 

 prothorace angustioribus, nitidissimis, 9 — striatis, striis 8 

 externis punctatis et aureo-pilosis. Subtus piceus, omnibus 

 partibus nitidissimis. Mento opaco, excavato, sparsim et 

 tenuiter punctato. Abdomine punctato. Tibiis anticis glabris 

 et 2 — 3 dentibus parvis instructis, 4 posticis striato-pilosis. 

 intermediis spina minuta, posticis inermibus. Long. corp. 

 (mand. excl.) 12 mm; mand. 3 mm; latit. max 5 mm. 



9 ignota. Hab. Mt. Penrissen, Sarawak, Borneo Septen- 

 trionalis. 



This species is allied to Aeg. hamatits Jakowl. and to Ae. 

 malacciis Thoms. Pitchy black, legs somewhat clearer. The 

 head is dull and much vaulted, its centre slightly depressed, 

 so that on each side of the head a large gibbosity is formed ; 

 some of the very fine punctures may be seen only with the 

 glass ; in the middle of the head exists a singular deep puncture. 

 The anterior margin is broadly excavated, the ocular canthus 

 very narrow. The mandibles are much rounded and elevated; 

 they are nearly twice as long as the head and stronger than in 

 Aeg. malacco ; the denticulation has the inversed form as in 

 Aeg. hamato. The large truncated median tooth of Ae. 

 hamatus is placed at the base in the new species and its median 

 tooth is slender, triangular and forwards. The prothorax has 

 the sides dull and finely punctured, the disc very shining ; 



