464 Mr. F. P. Pascoe on some Australian Colydiiclse. 



sharply defined, interrupted canal, the anterior portion very short and 

 narrow ; elytra seriate-pimctate, with the alternate interstices raised, 

 and the punctures in the striae large and very strongly marked ; body 

 beneath reddish pitchy, with coarse scattered punctures; legs feiTU- 

 ginous, shining. Length 2^ lines. 



The smallest and slenderest of the Deretaphn, and somewhat cylin- 

 diical, or at least its depth very nearly equalling its breadth, although 

 above it is slightly depressed, as in the other species. In the diminu- 

 tion of the anterior portion of its prothoracic canal it resembles 

 DeretajjJinis fossiis, but, notwithstanding its smaller size, it is much 

 more distinct. 



Table of the species of Bothrideres (Australasian). 

 Disk of the prothorax with a deeply impressed continuous line, in- 

 cluding an oblong space. 

 The included discoidal space twice as long as broad . B. anaglypticm. 



' three times as long as broad B. puteus. 



Disk of the prothorax* without a continuous line in- 

 cluding a space. 

 Prothorax with a broad, shallow depression, more or 

 less raised along the median line. 



With a dark sutural stripe B. vittatus. 



Without a dark sutural stripe. 



Glossy chesnut-brown B. vmsivus, n. s, 



Subopake tawny yellow B. merus, n. s. 



Prothorax with a deeply impressed, crescent-shaped 

 mark posteriorly. 

 With a strongly marked anterior impression also. 



Entirely dark-brown, opake B. equiniis, n. s. 



Elytra chesnut-brown, shining ; suture dark 



brown B. taniatus, n. s. 



Without a strongly marked anterior impression. 

 Prothorax with a small lobe at the base of the 



impression on each side B, lobatus, n. s. 



Prothorax without a small lobe at the base of the 

 impression on each side. 



Large, dark brown B. ilbmis. 



Smaller. 

 Fulvous yellow ; posterior impression very 



slightly curved B. senms, n. s. 



Brown; posterior impression strongly curved. B. versiitus, n. s. 



Bothrideres eqtiinus. 



B. fusco-brunneus, subopacus ; prothorace rude punctate, basi sulcato, 



disco biimpresso ; elj-tris concoloribus, 

 Ilab. Melbourne. 



