OF PSEUDOCOCCIDAE & ERIOCOCCIDAE 29 



The metathoracic setae : The metapleural (mps) and the postmetastigmatal setae 

 (eps3s) are present in E. buxi only ; the posterior metasternal setae are always 

 absent. 



Wings and Hamulohalterae 



The circular sensoria could not be detected on the wings, and are presumably 

 absent. The hamulohalterae are sometimes absent (0. agavium, Text-figs. 45 & 46) ; 

 the hooked seta is usually subequal in length to the hamulohaltera (Eriococcus spp.), 

 but sometimes considerably shorter (G. spuria). 



Legs 



The fore and the middle legs are usually subequal in length, but sometimes the 

 latter are slightly shorter (G. spuriae) ; the hind legs are always longest. The 

 proximal part of the trochanter (tr) is distinctly longer than the distal. The femur 

 (fern) of the middle leg is always the shortest, and that of the hind leg the longest. 

 The claw (cl) is relatively broad at the base and abruptly tapering towards a sharply 

 pointed tip ; the ungual digitules (udgt) are distinctly apicalfy knobbed. 



Abdomen 



Pregenital segments 



The ostioles are always absent. The abdominal setae are arranged in dorsal and 

 ventral irregular transverse rows, and in pleural clusters ; one dorsal seta on each 

 side of segment VIII is noticeably longer than the others. A dorso-median, trans- 

 verse sclerotization sometimes occurs on segment VIII and anteriorly binds its 

 tergite (E. buxi) ; similar, longitudinal sclerotizations may be also present ventrally 

 along the outer margins of the sternites of the same segment (e.g. E. orariensis, 

 Text-figs. 41 & 42). The glandular pouches (gp) are present only on segment VIII, 

 and their setae (gls) only include a pair of comparatively short tail setae (ts) (the 

 body more than 5 times as long). 



Genital segment and external genitalia 



The structure of the genital segment and the external genitalia is of great 

 taxonomic significance ; it appears to be the most reliable feature distinguishing 

 all forms of Eriococcidae males from those of Pseudococcidae. The basal ridges of 

 the penial sheath are medially continuous and modified into a complete, well 

 sclerotized ring. The basal part of the penial sheath is rather long, intimately 

 fused with the 9th tergite + the 10th segment, forming together a compact, 

 cylindrical genital capsule (gc). The anal opening (an) is comparatively large, and 

 the style (st) is usually short but sometimes rather long (e.g. E. orariensis, Text- 

 figs. 41 & 42) ; the style in lateral view, is either sinuate (e.g. E. araucariae) or 

 straight (e.g. 0. agavium). Ventrally, the slit-like opening of the penial sheath is 

 removed far posteriorly, and the aedeagus (aed) arises at a comparatively large 

 distance from the basal ring of the genital capsule. The aedeagus usually consists 

 of a basal rod (bra) and a sclerotized tube, ventrally accommodated within the 



