F. H. Gravely : An Account of the Oriental Passulidae. 



259 



1914.] 



suppose, to keep between the bark and the wood of decaying trees instead of workin, 



into the rotten wood as the other Passalidae I know do." 



2. L. BicoLOR var. viciNUS (Perch.). 

 PI. xiii, fig. 56f?. 



Regd. No. 



Ceylon 



Ganiaduwa, Ceylon 

 Dimbula, Ceylon 

 Rangoon 

 Moulniein 



I. M. Mackwood. 



Colombo Museum. 



Museum Collector. 



H334-9 9SH-51 0.i5:i-5 



awM 4037:8 40% I Andamans 



( Stoliczka bequest, 

 ( J. Wood-Mason, etc. 



( Stoliczka bequest , 

 \j. Wood- Mason, etc 



H. E. Andrewes. 



Moti Ram. 



East India Co.'s Museum. 



Sarawak Museum. 



=^ Kuching, Sarawak 



--f Borneo ) 



This form is represented in the Sarawak Museum collection by specimens from 

 Kuching and Matang Road, in the Colombo Museum collection by specimens from 

 Ga.maduwa and Dimbulla, in Mr. Green's collection by specimens from Pundaloya, 

 and in Mr. Andrewes' collection by specimens from Java and Batjan. 



Description.— Length 13-25 mm. Differs from the typical form in the following 

 respects only. Frontal area of head as a rule somewhat more nearly rectangular in 

 shape. Pronotum less strongly punctured ; large specimens with a few sparce punc- 

 tures in anterior angles, a few set very close together in scars and, as a rule, a few 

 more scattered near outer margin ; small specimens more densely punctured, especially 

 in neighbourhood of scars.' Mesosternm-n always highly polished, its scars with 

 inner wall usually longer and more strongly arched. Puncturing of intermediate areas 

 of metastemum sometimes less distinct or more irregular ; central area always highly 

 polished. Lateral punctured areas of abdominal sterna more or less obsolete. 



' The puncturing of the pronotum in small specimens is very like that found in larger specimens 

 of the typical form. I have not seen any with the uniformly dense marginal puncturing found in most 

 small specimens of the typical form. 



