OF PSEUDOCOCCIDAE & ERIOCOCCIDAE 203 



(1) Comparatively small species, less than 1000 [i long. Dorsal and ventral 

 simple eyes subequal in diameter ; the former separated by 45 or more 

 times their diameter. Structures of obscure homology absent on the head. 

 Third antennal segment less than 34 times long as wide ; terminal segment 

 only with 3 antennal bristles. Scutellum slightly shorter than scutum. 

 With a minute lateropleurital seta. Total length of the body usually more 

 than 21 times the length of the hind legs. Sternites of abdominal segment 

 VIII laterally bounded with longitudinal heavy sclerotization. Genital 

 capsule 2-6 or more times long as wide, and the body less than 79 times its 

 length; style rather straight in lateral view . . . E. orariensis (p. 171) 



Comparatively large species, more than 1000 (i long. The dorsal eyes larger 

 than the ventral, and separated by less than 35 times their diameter. A 

 body of unknown homology present on each side of the midcranial ridge. 

 Third antennal segment 34 or more times long as wide ; terminal segment 

 with 3 large and 2 smaller antennal bristles. Scutellum longer than scutum. 

 Lateropleurital setae absent. Total body length less than 21 times the 

 length of the hind legs. Sternites of abdominal segment VIII without 

 differentiated heavy sclerotization. Genital capsule twice or less times as 

 long as wide, and the body 7-9 or more times its length ; style sinuating in 

 lateral view . . . . . . . . E. araucariae (p. 167) 



Brachypterous Males 

 GOSSYPARIA 



Key to Species 



Capitate sensory setae entirely absent. Usually with 7 or more metatergal setae. The 



fore and the middle legs subequal in length . . . G. salicicola (p. 190) 



Capitate sensory setae present on the antennae. Usually with less than 7 metatergal 



setae. The middle legs shortest ...... G. spuria (p. 186) 



Apterous Males 



Only two species whose apterous male forms were studied, Saccharicoccus sacchari 

 and Pseitdochermes fraxini. While the macropterous males of the former were 

 also studied, only the apterous form of the latter was available which is obviously 

 degenerate. The comparison therefore would not serve any useful purpose. 



LETTERING USED IN TEXT-FIGURES 



(A) General dorso-ventral view of the body. (F) Hind leg. 



(B) Front view of the head. (G) Hind claw and distal end of tarsus 

 (B x ) Lateral view of the head. showing the tarsal digitules (if 



(C) Terminal 3 antennal segments showing present) and the claw digitules. 



the antennal bristles, few sensory setae, (H) Lateral view of the genital segment, 



one fleshy and one hair-like setae. (Hi) Ventral view of the genital segment. 



(D) Mesoprephragma (anterior view) and (I) Tentorium and cranial apophysis, 

 mesopostphragma (posterior view). (X) Structures of obscure homology. 



(E) Disc pores. 



