1914- ] F. H. Gravkly : An Account of the Oriental Passalidae. 249 



except the anterior margin ; this is flat or slightly convex on both sides ; the left 

 outer tubercle is simple and truncate ; the right one is similar but broader, its trun- 

 cation somewhat concave ; two smaller pointed denticles are developed between this 

 tubercle and the right anterior angle of the head. Prothorax, mesothorax and meta- 

 thorax as in Trapezochilus nohilis. Posterior parts of hind coxae rough. Abdominal 

 sterna polished. Grooves nearest inner margin of elytra scarcely punctured, next 

 pair somewhat more distinctly punctured, puncturing of lateral grooves very strong 

 — quite as strong as in G. hurrneisteri . 



Gnaphalocnemis burmeisteri (Kaup). 

 PI. xiii, fig. 49. 



Described from specimens from Deli, Pedong, Peinan, Soerian Plantation (nr. 

 Solok), Battak Mountain, Kepahiang, Redjaug-Lebong, and Java (the type and two 

 other specimens) in the Berlin collections ; specimens from Deli and Somgei Lalah 

 in the Hamburg collection ; and a specimen from Sarawak in the Sarawak Museum 

 collection. 



Description. — Length 41-51 mm. Differs from the following species only in 

 having grooves 5-7 of the elytra narrower^ simply punctured without any defined 

 flattened surface, transverse punctures, or longitudinal roughened lines. 



Gnaphalocnemis monticulosus (Smith). 

 PI. xiii, fig. 49a. 

 I have not seen the specimen which Stoliczka says he received from Sumatra ; 

 the specimen which he collected in Penang, though not referred to in his paper, is 

 evidently of this species and appears to have been identified by him. 



Regd. No. '~ Penang F. Stoliczka. 



I have also examined specimens from Kuching and Sadong belonging to the 

 Sarawak Museum; specimens from Tengah Mountain, Deli, Tandjong Morawa, Solok, 

 Medan, Sarawak and Mt. Kina Balu in the collections in Berlin; and a specimen 

 from Lampung in the British Museum. 



Description. — Length 38-44 mm. Anterior margin of lahriim slightly concave, 

 sometimes almost straight, usually with a distinct denticle in the middle; angles 

 rounded, the left inclined to be slightly more prominent than the right. Upper 

 margin of mandibles usually more or less convex or angular behind upper tooth; 

 upper tooth distinct, more or less rectangular on left side, usually acute on right ; 

 no trace of right anterior lower tooth present ; left anterior lower tooth and left lowest 

 terminal tooth more or less fused at base, each distinct and well developed at apex. 

 Mentum usually somewhat narrower and more convex between the scars than in 

 Trapezochilus dorsalis {=nobilis). //"eafi polished throughout, more or less rugose in 

 front of parietal ridges. Outer tubercles complex, somewhat variable in form (compare 

 figs. 49 and 49a'). Anterior border excavate between left outer tubercle and front of 



' Prepared from specimens belonging to two different species ; but the structure and range of varia- 

 tion of the outer tubercles appears to be the same in both, and also in the larger G. tridens (fig. 50). 



