SB 



818 



C578 



ENT 



No. 88. 



fssucrl May 14, 1907 



nited States Department of Agriculture, 



BUREAU OF ENTOMOLOGY, 



L. O. HOWARD, Entomologist and Chief of Bureau. 



THi: TURK A PIN SCALE. 



Eulecaiiiun 



I'.v .1. 



i nigrofasciatvm Pergi-uiile. 

 • r. Sanders, . Issistant. 



From every State easl of the Mississippi River," and from Missouri. 

 Arkansas, Louisiana, Tex- 

 as, Minnesota, and the 

 Province of Ontario. Can- 

 ada, the terrapin scale has 

 been reported and authen- 

 tic specimens have been 

 received by this Office.. It 

 is noteworthy that this spe- 

 cies of scale, more conspic- 

 uously marked than any 

 other of the genus, is the 

 most generally injurious 

 one. In consequence of its 

 wide range of food plants, 

 including both wild and 

 cultivated trees, it must be 

 considered a dangerous 

 pest, which may be con 

 trolled but never eradi- 

 cated. 



This scale insect can be 

 recognized and identified 

 especially well in the hiber- 

 nating winter stage (tig. 1). 

 when it appears as a red- 

 dish hemispherical scale 2 

 mm. in length, mottled 

 with radiating streaks of 

 black which are especially 

 conspicuous about the mar- 

 gin. Sometimes these radi- 

 ating streaks eoa lesce, 

 forming a subdorsal dark band surrounding the central reddish boss. 

 Occasionally individuals are found which are entirely red or black. 



. 29931— No. 88—07 



Fig. 1.— Terrapin scale i Euleeanium nigrofatciatum) . Adult 

 females on twig oi peach. Enlarged aboul three times 



. ina 1 i. 



