Dec, 1919.] Shaeffer: Notes on Chrysomelid.f. 321 



All the different color forms are often found together on the same 

 plant and interbreed. I have taken a male with red prothorax in 

 copula with a female with black prothorax. 



If Lacordaire's equestris should prove to be the same as balteata 

 the latter name becomes a synonym. 



Lema opulenta G. & H. 

 Lema ornata Baly. 

 Lema lebioides Linell. 



In Proceedings of the U. S. Nat. Mus., vol. XX, p. 474, Linell 

 described L. lebioides from a single specimen taken by Prof. Town- 

 send in Brownsville, Tex. I have taken a moderately large number 

 of this species near Brownsville, Texas, but I am unable to find any- 

 thing in Baly's description of his ornata to differentiate the two. The 

 head and prothorax may be entirely reddish or more or less black or 

 piceous ; the lateral vitta of each elytron is internally dilated at its 

 posterior end but does never extend to the apex nor does it unite with 

 the common sutural spot at the extreme apex. The dilated portion 

 of the vitta sometimes extends to the suture or the vitta may be 

 broken up into two spots, one linear, humeral, and a larger, rounded 

 spot a little below middle, the spot at the extreme apex and the 

 elongate, sub-scutellar spot seem to be quite constant. 



This species is figured in Biol. Cent. Am. Col., vol. VI, pt. I, pi. I, 

 fig. 3, as L. ornata; a name preoccupied in the genus and changed to 

 opulenta by Gemminger and Harold. 



Lema confusa Chev. 

 var. trabeata Dej. 

 var. omogera Horn. 



Horn's omogera is the extreme variation of the variable confusa. 



Typical confusa are black, elytra yellow, an entire sutural stripe, 

 confluent with an internally oblique, common, apical spot, and a sub- 

 marginal vitta, abbreviated at apex and base, black. This has been 

 taken at Enterprise and Crescent City, Florida, by Messrs. Hubbard 

 and Schwarz and at Biscayne Bay, Florida, by Mrs. A. T. Slosson. 



The variety trabeata has the elytra black with a large subtriangu- 

 lar basal spot, a subapical oblique fascia and lateral margin, which 

 is confluent with the basal and subapical spot, yellow. I have taken 

 this form in Arizona (Huachuca Mts.) and have also a specimen 



