292 APPENDIX. 



Length 'h lialf an inch, 2 three-fifths of an inc'li. 



This appears to have some resemblance to the miicro- 

 natus of South America, but the elytra are not obviously 

 mucronate, the markings also of the superior surface of the 

 body materially differ. 



MOLORCHUS, Fabr. 



M. marginalis. Yellowish ; elytra dusky on the disk ; 

 antennae shorter than the elytra. 



Inhabits United States. 



Body with numerous minute hairs ; head yellow ; ver- 

 tex, palpi, blackish ; antennse short, hardly reaching the 

 tip of the elytra, and excepting the three basal joints, 

 blackish ; eyes prominent, black-brown ; thorax short, 

 transversely oval, yellow with a dusky disk ; elytra much 

 abbreviated, rounded at tip, yellow ; disk dusky, reaching 

 to the base ; the margin at tip is broad so as to resemble a 

 yellow spot on each ely trum ; edge, like that of the thorax, 

 a little elevated, particularly at tip ; abdomen long, yel- 

 low ; segments more or less tinged with rufous at base ; 

 tail dusky or black ; feet more or less dusky, with yellow 

 incisures, sometimes nearly all yellow ; venter somewhat 

 sericeous. 



Length three-tenths of an inch. 



This species is not uncommon in Pennsylvania, and it 

 is also an inhabitant of the North-west Territory. 



HISPA, Linyi. 



H. vittata, Fabr. This species varies much in colour, 

 so much so indeed, that more than one species might be 

 formed of it by a naturalist who relied implicitly on the 



