THE LEAF BEETIjEP. 1173 



*2171 (6885). DiABEOTicA vittata Fabr., Syst. Kiit, 1775, 122. 



Oblong-oval. Pale yellow above ; head, scutellum, 

 one common sutural and a diSL-al stripe on each ely- 

 tron, black ; under surface, antennte, except the three 

 basal joints, knees, front tlbl», tips of middle and hind 

 tibise and tarsi piceous. Thorax one-fourth wider than 

 long, sides curved in front ; disk smooth but with two 

 deep foveas. Elytra rather broadly striate, the stri:e 

 each with two rows of punctures. Intervals convex, 

 subeostate. Length 4.5-6 mm. (Fig. 5i:;.) 



Throughout the State; common. Known as 

 the "striped cucumber beetles," and very in- 

 jurious to cucumber and melon vines. Hiber- rig 513. 

 nates beneath rubbish in the vicinity of gardens "^ '""^ 

 and melon patches. February 7-Deceinber 11. Elating April 26 in 

 numbers on the flowers of drafngiis and wild plum; also taken at 

 sap. The beetle eats into the stems of the ra< Ion vines at the sur- 

 face and the larv* mines in them a little under oround. "Remedial 

 measures vary and generally result in an effort tn keep away the 

 beetles until the vines are well established. This is sometimes ac- 

 complished by planting an excess of seed so as to allow the insects 

 to kill a number of the plants and yet leave enough for the farmer; 

 sometimes ground tobacco at the base of the plant is used as a repel- 

 lant, and this is good if it be ground fine. The beetles may also be 

 driven away with air-slaked lime or plaster. Occasionally carbol- 

 ized lime or plaster is used, and sometimes kerosene or turpentine 

 is mixed with plaster. All these are unod, and the hest is that which 

 succeeds best with the individual farmer. " * 



XLVII. Paeatri.vrilis Schf. 1907. (Gr., "near + Triarius.") 



This genus Avas established to embrace the long lost Gahrnca 

 dorsata Way which was rediscovered by Dury near Cincinnati in 

 1903. It is a small-sized oblong-oval species having the antenna- 

 longer than half the body, first joint stout, slightly larger than 

 fourth, second small, third and foUnwing subequal, the fifth to 

 seventh broadlj' dilated on outer side in male; elytral punctures 

 confused; leus slender, all the tibia? with minute spurs; first joint of 

 hind tarsi as long as the next three touctlier ; claws deeply bifid, the 

 inner lobes conxergent and touching. 



2172 ( ). PARATRiARirs DORSATA Say. .Tourn. I'hi). Acad. Nat. Scl., Ill, 



1S21. 4.">(;: ibid. II, 221. 

 Oblong-oval. Frunt of head, thorax, under surface, legs and narrow 

 border of elytra iiale yell(jw ; vertex Mack; elytra bluisli-green, shining; an- 



»J. B. Smith, Cat. X. J. Insects, 1899, 310. 



