1918.] F, H. Gravely : Passalidae of the World. 81 



The pronotum is at most sparsely punctured in the anterior angles and in and near the 

 scars. The marginal grooves are widely discontinuous in front and somewhat less widely 

 behind ; they are very narrow and are unpunctured except at their anterior ends, which 

 are slightly enlarged and directed a little backwards from the anterior margin. The median 

 groove is very fine, and is incomplete in front. The sides and angles are lightly rounded. 



The scutellum is smooth and glossy. The mesothoracic epimera are smooth and glossy 

 antero-dorsally, punctured and glossy below and behind this, then unpunctured and matt,, 

 and finally smooth and glossy along the oblique ventral margin. The mesosternum is 

 glossy throughout, but is sometimes indistinctly punctured in the more or less rudimentary 

 scars. 



The intermediate and lateral areas of the metasternum are fused and are densely 

 punctured. They are hairy except on the greater part of the space corresponding to the 

 posterior intermediate areas, where the punctures are specially coarse. The abdominal 

 scars are strongly and extensively, but somewhat finely, punctured. The elytra are 

 united ; they are lightly convex between the shoulders, short in proportion to their length 

 and lightly convex at the sides, being distinctly broader behind than in front ; the grooves- 

 are strongly and uniformly punctured, about as strongly as are the lateral grooves of M.. 

 rotundifrons or the dorsal ones of M. crenatipennis. 



Macrolinus batesi, Kuwert. 



Macrolinus batesi, Kuwert, 1898, p. 187. 



Four specimens from Perak, Malay Peninsula, and large numbers from Mana-Riang, 

 Renau, Palembang, Sumatra, 3,000 ft. and from Bng. Proepoe, Pad. Bovenland (^interior 

 of Padang), Sumatra, ca. 1,600 ft.. Mr. Holman-Hunt has sent specimens for examination 

 from the Selangor-Pahang boundary, ca. 3,000 ft., Malay Peninsula ; and M. Guy Babault 

 from Medan, Sumatra. Length 25-30 mm. 



In my " Account of the Oriental Passalidae " M. batesi was regarded as identical with 

 M. latipennis. The specimens which I now refer to the former are distinguished by the 

 relative shortness of the second antennal lamella, whose apex does not fall in line with the 

 apices of the first and third lamellae when the antennae are furled ; by the small 

 unpunctured frontal area ; by the more or less distinctly shouldered outer tubercles ; by 

 the large inner tubercles with strongly concave instead of straight or convex connecting 

 ridge ; by the narrow marginal grooves of the pronotum, which are hairless except below 

 the scars ; by the matt but entirely unpunctured mesosternal scars ; and by the coarser 

 puncturing of the lateral grooves of the elytra. 



Macrolinus depressus, n. sp. 



Fig. IX, 2. 



One specimen from Java, 33 mm. long. Closely allied to M. batesi, but larger and 

 proportionally flatter. The outer tubercles are strongly shouldered. The pronotum is un- 

 punctured except in the small round hairless scars, and between these and the posterior 



M 



