OF PHILADELPHIA. 343 



closely allied to the G. philadelphica Fabr., but is smaller, and 

 the sutural line is always common ; whereas in the philadelphica 

 there is a slender subsutural line on each elytron always insu- 

 lated from the suture throughout its whole length. 



It has also a general similarity to the multipunctata nobis, but 

 that species is larger and more oblong, the elytral spots more 

 numerous, and arranged in a different manner, and the head and 

 thorax are of a different color. [ 298 ] 



HELODES Fabr. 



H. TRiviTTATA. — Blue-black ; margin of the thorax and two 

 elytral vittae yellow. 



Body punctured : head entirely blue-black, with an impressed 

 frontal line divaricated before : thorax with somewhat sparse 

 punctures ; lateral margins yellow, this color being contracted in 

 the middle on the inner side : elytra with punctured stirse : su- 

 tural margin yellow ; vitta on the middle not reaching the tip, 

 and exterior edge blue-black : feet immaculate : venter with the 

 caudal segment margined behind with dull yellowish. 



Length more than one-fifth of an inch. 



This insect was sent me by Mr. Charles Pickering, of Salem. 

 It is so closely allied to the H. phellandrii Linn., in size, form, 

 description, and disposition of colors, that I have hesitated to 

 consider it as distinct. The chief difference which I have been 

 able to discover, consists in the circumstance, that the feet in the 

 phellandru are partly yellow, whilst those of the present species 

 are perfectly immaculate. Still it is highly possible that it may 

 prove to be a variety of that well known insect. 



[This is a Chrysomela of the division Prasocuris. — Lec] 



GALLERUCA Fabr. 



1. Gr. RUFOSANGUINEA. — Entirely rufo-sanguineoug, punc- 

 tured. 



Head punctured, with an impressed frontal line passing down 

 between the antennae, and more dilated [ 299 ] above ; an in- 

 dentation each side near the eyes ; antennae black, dull rufous at 

 base : eyes deep black : thorax with rather large numerous punc- 

 tures, a large, indented spot each side, and a dilated longitudi- 

 1826.] 



