Tech. Series 15, Bureau of Entomology, U. S. Dept. of Agriculture. 



Plate III. 



IXODOIDEA, OR TiCKS, OF THE UNITED STATES. 



Fig. 1— Ixodes cookci, larva. Fig. 2.— Ixodes cookei. base of palpu.s of nymph from below. 

 Fig. d.— Ixodes cookei, tip of palpas of nvmph. Fig. 4.— Ixodes cookei, capitnlnm of female. 

 Fig. b.— Ixodes cookei, tarsus I. Fig. G— Ixodes cookei, coxa I. Fig. l.—Ixnili.< mnb i. stigmal 

 plate of female. Fig. H— Ixodes cookei. snield of female. Fig. 9.—Ixode-< liniim, /(.-■. i-apitu- 

 lum and shield of female. Fig. 10— Ixodes marxi. capitnlnm, coxae, and shield, ol lemale. 

 Fig. n.— Ixodes hexaqonus. coxs of female. Fig. VI.— Ixodes di.vcrsi/ossus, capitnlnm ot 

 female. Fig. U.— Ixodes hexagonus, capitnlnm and shield of female. Fig. \i.— Ixodes diversi- 

 fossus, shield, tarsns I, stigmal plate, coxee I and II, and tooth beneath rostrum— all ot 

 female. (Original.) 



36657— No. 15—08 3 



