SYSTENA. 281 
SYSTENA (p. 322). 
Systena nigroplagiata (p. 324). 
To the localities given, add :—Mexico, Chilpancingo, Omilteme, Amula, Tepetlapa, 
Xucumanatlan, all in Guerrero (H. H. Smith) ; GuatemMaua, Duefias (Champion). 
Several other varieties of this species have since been obtained at Omilteme and Chil- 
pancingo; in one of these the elytra have a sutural and also a submarginal longitudinal 
band, the former being widened at the base and at the middle, and the latter anteriorly 
widened below the shoulder (corresponding to the small spot at the same place in the 
type); in another variety the elytra are without spots, but have a narrow sutural 
and also a submarginal black stripe of equal width; in another variety the elytra are 
entirely testaceous, and in another they are entirely black. Of the two specimens 
figured on Tab. XIX., fig. 23 is taken from an example from Duefias, fig. 24 from one 
from Juquila. S. wndulata, Jac.,a specimen of which from Cerro de Plumas was figured 
on Tab. XIX. fig. 22, is probably a variety of S. nigroplagiata. 
12. Systena teniata. 
Altica teniata, Say, in Long’s Second Exped. p. 294°; Complete Writings, 1. p. 195. 
Systena teniata, Horn, Trans. Am. Ent. Soe. xvi. p. 278, t. 7. figg. 5-8”. 
Systena elongata, huj. op. p. 327 (nec Fabr.) 
Systena discicollis, huj. op. p. 331, Tab. XX. fig. 5. 
Systena semivittata, huj. op. p. 335, Tab. XX. fig. 9. 
Systena capitata, huj. op. p. 336, Tab. XX. fig. 6. 
According to Dr. Horn (op. cit. p. 274), 8. discicollis, 8S. capitata, and S. semivittata 
are probably varieties of the widely distributed and variable S&. teniata (Say). Dr. 
Horn has described the known varieties, and I have not much doubt about the 
correctness of his views. JS. ¢eniata stands as a synonym of Phyllotreta vittata, Fabr., 
in Gemminger and Harold’s Catalogue. 
Systena chloropus (p. 328). 
To the localities given, add:—GuvateMaLa, between Tactic and Tucuru in Vera Paz 
(Conradt). 
17 (a). Systena viridilimbata. 
Black; the head and thorax closely punctured, the basal margin of the latter testaceous; elytra closely punc- 
tured, testaceous, the sutural and lateral margins greenish-black. 
Length 24 lines. 
Head closely and somewhat rugosely punctured, black, the lower portion flavous, the carina acutely raised ; 
the antennz extending to the middle of the elytra, black; thorax about one half broader than long, the 
sides constricted near the base, rounded in front, the surface rather closely punctured, piceous, the basal 
margin testaceous, preceded by an obsolete transverse groove ; scutellum black ; elytra slightly widened 
BIOL. CENTR.-AMER., Coleopt., Vol. VI, Pt. 1, Suppl., December 1891. 20 
