DISCUSSION OF GENERA AND SPECIES 



17 



normally 7-segmented, rather long and slender. Legs likewise rather 

 slender, the claw without a tooth, and the posterior coxae without pores. 

 Ducts (Fig. 3D) with a rather broad and deep 'cup. 



Notes: Of the species known to me this most closely resembles E. coccineus 

 Ckll., which is found on cactus, bui the latter differs in having the marginal spines 

 more numerous and in having a few large spines on the dorsum of the cephalo- 

 thorax. 



Eriococcus bahiae Ehrh. 



Fig. 4 



Originally described from the roots of Eriophyllum (=Bahia) con- 

 fertiflorum, from this area. It occurs quite commonly on this host, and 



Fig. 4. Eriococcus bahia Ehrh.: A, dorsal aspect of adult female; B, anal lobes, 

 dorsal aspect left, ventral aspect right; C, antenna of adult female; D, types 

 of spines ; E, wax duct. From specimen from type material. 



