224 



Fi(i. 230. The Common Red 



Spkler, Tetninychus binKicuhitus, 



female. Greatly enlarged. (.Ilar- 

 vey.) 



Fii:. 237. The t'oninion Red 

 Spider, Tetrani/chus bimitciilnlus, 

 male. Greatly enlarged. (.Har- 

 vey.') 



tills point of view may he l\)Uii(l in the Twoiity-lii'st Kcporl of ihi.s ollico 



(pag-e 58). 



Tho.so insects are believed to Avinter as adults amoni>- dead leaves, 



in the cn^vices of stieks, and in similar shelters. They l)egin to breed 

 as soon as tiu> weather favors their mnltiplieatiou and 

 cotitinue active tlirou,<ilioiit the season. The ecsis are 

 red and are laid on buds and twigs. 



TiOTKAXVcms HiM.vci'L.vTUS Harv. 

 This is by far th(> most abnndant and ti-onblesome 

 species of red spidei* throuiihout th«- I'liittvl States. 

 It is the species mentioned as found by us on corn 

 and on su,i!,ar-be(>ts. It is also nn'orded by Hanks as 

 occurring!; on corn at W'ashinuton, 1). C. 



Tetranychus modestus Banks. 

 Via. 238. The This sjiecies was ilesoribed from examples found 



?ier"'^''Tcu^unSl causiug a rust-Hke appearance on blades of corn at 



b i m a c II I a t u s, 

 foot. (Harvey.) 



Washington, D. C., in Auiiust. 



