1914-] F. H. Gravely : An Account of the Oriental Passalidae. 219 



side and a larger blunter projection on right, from each of which a low ridge extends 

 backwards toward middle lower tooth, this ridge elevated in about the middle of its 

 length to form an additional very blunt tooth on left side but not on right. Mentum 

 as described in definition of Chilomaziis (p. 196). Head polished, punctured in front of 

 and behind parietal ridges. Left outer tubercle slightly more prominent than right ; 

 profile of former obliquely, of latter almost vertically truncate at apex; ridge 

 connecting outer and inner tubercles not defined by a groove parallel to it. Parietal 

 ridges sharply crested, their crests more or less distinctly continued on to sides of 

 central horn; supra- orbital ridges also very sharply crested, crest continued along 

 outer limb of anterior fork which descends abruptly at angle of somewhat over 120°, 

 inner limb of fork rudimentary or absent. Anterior angles of head approximating 

 to 120°, but not altogether constant; canthus rounded at its extremity. Frontal 

 area somewhat variable in form, the frontal ridges being to a variable extent 

 oblique and S-shaped, while the transverse ridge between the inner tubercles is either 

 concave, straight or prominent in the middle. Prothorax as in Episphenus moorei, 

 but frequently with a group of strong punctures at upper end of scar on each side 

 of pronotum; lateral plates of lower surface not quite so perfectly smooth in front. 

 Scutellum indistinctly punctured in anterior angles, often obscurely grooved in middle 

 line in front, posterior angle smooth. Mesothoracic episterna punctured above and 

 along extreme anterior margin ; below smooth, or obscurely punctured in posterior 

 angles. Scars of mesosternum dull, the rest of this plate more or less polished, and as 

 a rule finely punctured either in lateral angles, in middle or throughout ; other vari- 

 able markings sometimes present. Metasternum as in Episphenus pearsoni, but with 

 lateral areas as a rule still further enlarged behind. Hind coxae and scars of abdo- 

 minal sterna almost smooth. Grooves of elytra normal, punctured ; shoulders slightly 

 hairy. 



2. E. COMPTONI var. flachi (Kuwert). 



Regd. No.^ (13 spirit specimens). | Patipolla, «. 6000 ft., Cent.l 



,„,.,,, .jr.,- ..Si / Prov., Ceylon, in rotten ) N. Annandale. 



. ^i^--:^ (pinned). | wood (13-15-X-1911) / 



( Patipolla, a.ôoooft., Cent. \ 

 »479-80 9töä ) Prov., Ceylon; in rotten [ ü tx r> 1 



' ~^^ I wood (first week in July,/ F. H. Gravely. 



I 1910) j 



'^ Ceylon H. Nevill. 



Mr. Green's collection contains specimens from Hakgalla and Namunakuli Hill. 

 Description. — Length 32-37 mm. Not otherwise different from the typical 

 form. In No. "'^' the process of the lower lip by which the genus is distinguished 

 is paired instead of single. In the absence of any other distinguishing characters, 

 however, I feel unable to regard this as more than an abnormality. 



Habits. — These insects live in galleries under the bark of fallen and decaying 

 tree-trunks. Dr. Annandale tells me that the natives at Patipolla say that they 

 live in pairs; but, as they are gregarious, satisfactory proof of this is not very easily 



