324 ACADEMY OF NATURAL SCIENCES 



COLYDIUM Fabr. 



1. C. PARALLELOriPEDCM. — Head with two tubercles ; thorax 

 with two elevations, and an elevated line each side. 



Colydium parallelopipedum Melsh. Catal. 



Body dull rufous ; glabrous, punctured : head with an indented, 

 transverse line, and two hardly prominent [264] tubercles, 

 often obsolete : thorax quadrate, rather longitudinal ; two tuber- 

 cles before, which gradually dilate and disappear behind ; lateral 

 submargin, with an elevated line hardly attaining to the base, 

 and extending on the anterior edge, so as to join the opposite 

 line; exterior edge a little reflected; anterior angles prominent: 

 elytra with hardly impressed, punctured striae, becoming small 

 behind : feet pale rufous. 



Length less than one-fifth of an inch. 



This seems to be allied to C. hidcntatum Fabr., of South 

 America. 



[Belongs to Aulonium Er. — Lec] 



2. C. LONGiuscuLUM. — Dark brownish; antennae and feet 

 Tufous; thorax punctured. 



Cohjdnim longivscidum Melsh. Catal. 



Body linear, slender, elongated, dark reddish-brown : head 

 blackish, eminently punctured ; nasus dull rufous : antennae 

 bright rufous : thorax cylindric, long, minutely punctured, black- 

 ish : elytra with large, deep striae, in which are transverse punc- 

 tures ; interstitial lines convex : beneath blackish : feet bright 

 rufous. 



Length one-fifth of an inch. 



3. C. LINEOLA. — Dark brownish ; antennae and feet rufous ; 

 thorax with an impressed line. 



Colydium lineola Melsh. Catal. 



Body linear, slender, elongated, dark reddish-brown : head 

 blackish, dull rufous before, minutely punctured : antennae 

 rufous : thorax cylindric, long, minutely punctured, blackish, 

 with a very obvious, longitudinal, acutely impressed line on the 

 back: elytra [265] with rather large, deep striae, and transverse 

 punctures, which crenate the interstitial lines : beneath rufous. 



Length less than one-fifth of an inch. 



[Tol. V. 



