196 
[Vol. IV. 
Journal New York Entomological Society. 
Leconte. It is dark blue, elytra reddish yellow with typically a common 
large cruciform post-scutellar spot, an elongate triangular humeral spot 
and a V-shaped subapical. The humeral and scutellar spots are often 
confluent, forming a broad transverse band. The variety has the spots 
broken up into smaller ones and occurs principally in Texas and Kansas. 
Genus Leptinotarsa Stdl. 
Elytra unicolorous. 
Reddish yellow; antennae, palpi, legs and scutellum black; elytra punctate in 
subgeminate striae. (Tex., N. Mex., Ariz., Mex.) 
L. rubiginosa Rogers. 
Dark cupreous green, very large; elytra densely confusedly punctate; intervals 
aciculate. (Southern Calif., Mex.). L. behrensi Harold. 
Black; elytra green or blue, finely irregularly punctate. (Tex., Ariz., Mex.) 
L. haldemani Rogers. 
Elytra vittate. 
Thorax immaculate. 
^Eneous; elytra yellow, irregularly bigeminately punctate, with four mter- 
rupted aeneous vittae. (Tex., Ariz., Mex.)- L. lineolata Stal. 
yEneous black ; ventral surface and legs pale; elytra regularly striate with 
a narrow dorsal and a marginal vitta yellow. (Tex., Mex.) 
L. dahlbomi Stal. 
Rufescent; elytra pale, with suture, two discal vittse and margin piceous. 
(Lower Cal., Ariz. Collection Ulke.)- L. peninsularis Horn. 
Black; elytra pale, regularly striate, each with four dark vittse. (N. Mex., 
M ex ^.L. melanothorax Stal. 
Thorax maculate. 
Ventral surface and legs entirely black. 
Elytra with suture, five vittse and epipleura black; strise of confused 
punctures. (Southern Calif., Mex.) L. undecimlineata Stal. 
Ventral surface and legs yellow, maculate with black. 
Elytral strise of confused punctures; suture and five vittse black. 
Epipleura pale... L. decemlineata Say. 
Epipleura black towards apex (Agua Negra, Tex., Mex.j 
L. multitaeniata Stal. 
Elytral strise regular, punctures in single rows; epipleura pale. 
Elytra each with five vittse, third and fourth approximate, often 
united. (Southern States west to Kansas.) 
L. juncta Germar. 
Elytra each with four vittse, more or less abbreviated, third and 
fourth not approximate. (Brownsville, Tex., Mex.) 
L. defecta Stal. 
Genus Zygogramma Chevrolat. 
Thorax brown with anterior angles pale ; intervals of elytra punctate. 
Oval, brown; elytra pale, with the epipleura, suture and four vittse black or 
brown, the first vitta free ; the second interrupted near apex, leaving a 
