FAMILY Llll. CHRYSOMELID^E. 



i 



Lake County; rare. May 12-May 30. Described from Gar- 

 laud, Colorado. 



2215 (7020). PIIYLLOTBETA BiPUSTULATA Fabr., Syst. 



Eleut., I, 1801, 464. 



Oblong-oval, rather robust. Piceous without me- 

 tallic lustre; elytra each with a large oval humeral 

 spot, touching base but not including the uinbone, and 

 a subapical more elongate and narrower spot, yellow; 

 antenna 1 piceous. the basal five joints paler; legs red- 

 dish-yellow, the hind femora darker beneath. Thorax 

 one-third wider than long; disk finely alutaceous, 

 rather finely and sparsely punctate. Elytra distinctly 

 wider at base than thorax and with coarser punctures. 

 Length 2-2.5 mm. (Fig. 527.) 



Throughout the State, frequent; more so in 

 Fig. 527. (After Chittenden the southern counties. April 14r- July 13. Taken 



in Bull. 33, N. Ser., U. S . , .,. 



Div. Ent.) by sweeping and sitting. 



221G ( -). PHYLLOTRETA ARMORACI.E KOfll, 



Ent. Heft., II, 1803, 75. 

 Elongate-oval, convex. Head, thorax and 

 under surface black, shining; elytra dull yel- 

 low, with a common sutural stripe and very 

 narrow side and apical margins, black; an- 

 tenna? and femora piceous, the basal three 

 joints of former and tibia? and tarsi dull 

 brownish-yellow. Thorax one-third wider 

 than long, sides curved and rounded to apex ; 

 surface finely and sparsely, that of elytra 

 more coarsely and densely, punctate. Length 

 3-3.5 mm. (Fig. 528.) 



A recently introduced European spe- 

 cies, several specimens of which have 

 been taken by Wolcott in the washup of 

 Lake Michigan, near Pine, Lake County. 

 May 28. From its specific name I judge that it preys upon horse- 

 radish. 



2217 (7019). PIIYLLOTRETA PicTA Say, Journ. Phil. Acad. Nat. Sci., IV, 



1824, 87; ibid. II, 228. 



Oval, slightly oblong, feebly convex. Head and thorax pale reddish- 

 yellow ; elytra bright bluish-green, shining ; antenna? pale, the outer joints 

 fuscous; abdomen and metasternum piceous; legs yellowish, the hind fe- 

 mora often darker. Thorax nearly twice as wide as long, surface very 

 finely, sparsely and indistinctly punctured. Elytra slightly wider at base 

 than thorax, uinbone rather prominent, smooth; surface finely, closely and 

 indistinctly punctured on disk, smoother at sides and apex. Length 2- 

 2.5 mm. 



Fig. 528. (After Chittenden in Insect 

 Life VII.) 



