NIGIDIUS HAGENI. 



NOTE I. 



DESCRIPTION OF A SUMATRAN SPECIES OE THE 

 LUCANOID GENUS NIGIDIUS. 



C RITSEMA Cz. 



N ig idiu s H a g e n i, nov. spec. <ƒ. 



This species, the second hitherto described from the 

 Malayan Archipelago ] ) , belongs to Parry's 2 ) Section A 

 (mandibles robust, with a recurved process at the base), 

 a (prothorax punctate, with a central fovea), *(anterior 

 angles of the prothorax non-emargiuate), and is therefore 

 allied to cornatus Macl. , distinctus Parry and obesus Parry. — 

 From the latter it differs by its narrower and more elon- 

 gate shape , by its finer punctuation , by the otherwise 

 shaped sides of the head and front angles of the protho- 

 rax, by the presence of a tubercle on the centre of the 

 front margin of the thorax , etc. — From cornutus and 

 distinctus it differs in the shape of the mandibles, of the 

 sides of the head and of the prothorax ; this latter shows 

 moreover a much finer punctuation , whereas the central 

 fovea is smaller and very shallow. 



Length (without mandibles) 15 mm., breadth at the 

 shoulders 5 3 / 4 mm. — Elongate, parallel, glossy black. — 

 The head very densely punctured on the raised occipital 

 parts, much finer and sparser on the anterior portion of 

 the depressed part, the flattened sides vaguely punctured, 



1) Notes Leyd. Mus. Vol. I (1879). p. 129: Nigidius Licht ens teinii Rits. 

 from North Celebes. 



2) Trans. Ent. Soc. London. 1873. p. 343. 



Notes from the Leyden Museum, Vol. XI. 



1 



