Buprestis, Trachjs, and Elatcr. 2q.> 



lower part of the front ; slightly punctured : thorax equal, 

 with the exception of a dilated indentation on each side, 

 with distant punctures in which is a raised centre : scutel 

 large, flat, impunctured, polished : elytra with wide, irregu- 

 lar, not deeply impressed punctures, without any appear- 

 ance of a regular series ; no appearance of elevated lines ; 

 a profound excavation behind the humerus, without any 

 sinus of the edge ; humerus prominent. 



Length rather more than one-tenth of an inch. 



This is the smallest species I have met with, and of a shorter 

 form. 



2. T. gracilis. Oblong, blackish ; elytra with regular series 

 of punctures. 



Description. Body rather slender, oblong, blackish-brassy : 

 head a little concave, but not profoundly so : thorax inequal, 

 with a slight impressed line before, and a wide indented 

 space occupying half the thorax behind ; on each side is a 

 raised, arcuated, obtuse line, extending nearly from one 

 angle to the other : scutel moderate : elytra with regular 

 series of rather large, profoundly impressed punctures, 

 which are obsolete at tip. 



Length less than three-twentieths of an inch. 



A comparatively slender species. I found it on a myrtle 

 bush at Senipuxten island, in September. It exhibits an un- 

 usual regularity in its series of punctures. 



Elater. 



1 . JE. abruptus. Black, covered with minute hairs ; junction 

 of the thorax and elytra deeply excavated. 



Description. Body black, polished, covered with minute 

 punctures, which a:ive rise to very short brown hairs, which 



