320 ACADEMY OF NATURAL SCIENCES 



cently received an individual from Dr. T. W. Harris of Milton, 

 Massachusetts. 



[I have a species of Ifyhsinns which agrees with this descrip- 

 tion, but the elevated punctures are hardly more distinct at the 

 tip. Phlceotn'liiK liminaris also agrees, except that the front is 

 concave with two distant small acute tubercles. — Leg.] 



APATE Fabr. 



A. PUNCTATUS. — Black-brown : posterior declivity of the ely- 

 tra carinate on the exterior submargin. 



Apate punctatus Melsh Catal. 



Body conflucntly punctured : head rough : antennae piceous, 

 three exterior joints yellowish, decidedly transverse : thorax be- 

 fore rough, with elevated, thick points, which disappear towards 

 the base, and are there supplied by discoidal punctures : elytra 

 with large, impressed punctures, which can hardly be traced 

 into a series; tip rather abruptly declining, [259] with prostrate 

 yellowish hairs, and a carinate line on the exterior submargin. 



Length more than three-twentieths of an inch. 



CLYPEASTER And. Latr. 



C. FASCIATUS. — Thorax yellowish, with a dusky disk ; elytra 

 black, with a yellowi.sh band. 



Body rather oblong-oval, depressed, with fine prostrate hairs : 

 antennae dusky at tip : thorax honey-yellow, blackish on the disk ; 

 anterior margin regularly rounded ; posterior margin but little 

 undulated : elytra very obtusely rounded at tip, almost truncate, 

 black, with a honey-yellow band a little beyond the middle, and 

 the edge of the tip somewhat dull yellowish : beneath dusky : 

 feet honey-yellow. 



A'ar. a. Elytra honey-yellow, with a paler band. 



Length about one-twentieth of an inch. 



I refer this little insect to the present genus, by its form of 

 body. It is very like a small Cassida, and the head is equally 

 concealed by the clypeiform thorax. 



[The name Clypeaster being preoccupied for a genus of Echi- 

 noderms, I have given the name Sacium to this genus ; Proc. 

 Acad. Nat. Sci., Phila., 6, 144.— Lec] 



[Vol. V. 



