DUTCH DORNEO-EXPEDITION. 137 



1874, but the mandibles are of equal 

 development in both specimens. Parry's spe- 

 cimen measured 17 mm. in length, that 

 from Mt. Liang Koeboeng 15V2 mm. 



Gen. Aegus mc. leay. 



1. capitatus Westwood, Trans. Ent. Soc. London, IV, 



1847, p. 275; pi. 20, fig. 5, ^. — Ritsema, 

 Notes Leyd. Mus. XI, 1889, p. 229. 

 Sekedau River, October 1894, 1 cT (Moret). 

 Singangi: Ketoengau District, 4 cf cf and 3 QQ (Moret). 

 One cT (from Singangi) belongs to the forma 

 media, the others belong all to the forma 

 major. 



2. malaccus Thomson, Rev. et Mag. de Zool. (2) VIII, 



1856, p. 527, cT et Q. — rectangulus VoUenho- 

 ven, Tijdschr. v. Ent. IV, 1861, p. 114; pi. 7, 

 fig. 7^ cf. — Id. Tijdschr. v. Ent. VIII, 1865, 

 p. 156. 

 Southern foot of Mt. Kenepai, January 1894, I cf 



(Büttikofer). 

 Singangi : Ketoengau District , 15 cTcT and 1 Q (Moret). 

 The length of the males (the mandibles inclu- 

 ded) varies from 16 mm. to 8 mm. The 

 female specimen has a length of 9 mm. 



3. amictus H. Deyrolle, Ann. Soc. Ent. Beige, IX, 



1865 1), p. 35; pi. 2, fig. 7, cf- 

 Singangi: Ketoengau District, 4 cTcT (Moret). 



These specimens seem not to belong to the 

 forma major, the lateral margins of the 

 prothorax being straight and parallel , not 

 notched near the anterior angles. The man- 

 dibles are very slender and straight, and 

 those of the two largest specimens, which 

 measure (the mandibles included) 11 mm.. 



1) Published in 1866. 



Notes from tbe Xjeyden IMuseuixi, Vol. XVII. 



