OF PSEUDOCOCCIDAE & ERIOCOCCIDAE 135 



genital segment : Dorsally, 3 small setae always present on each side near the base of the style ; 

 ventrally 4-5 (44) similar setae, and 4-5 (43) minute setal sensilla occur on each side of the 

 penial sheath. 



Material : 10 specimens examined, obtained by K. Boratynski in a laboratory 

 culture on Potato, in London during vi.1961. 



Remarks : Wilkey and McKenzie (1961) attempted to reveal the long puzzling 

 identity of P. maritimus and whether more than one species of mealybug is involved 

 under the so-called P. maritimus-malacearum complex. They carried out a 

 morphological investigation on the females primarily based on the shape of the 

 hind legs and the number of the translucent dots on the leg segments ; this investiga- 

 tion led to the conclusion that P. maritimus and P. obscurus are distinct species, 

 P. bakeri Essig and P. omniverae Hollinger being synonyms of the former, and 

 P. capensis Brain, P. longispinus var. latipes Green and P. malacearum Ferris of the 

 latter. Accordingly, Beardsley (1963) realized that the species long believed to 

 be P. maritimus in Hawaii, whose males were described as such by him in an earlier 

 paper (i960), was in fact obscurus. 



Beardsley's description of this species indicates that it is identical with P. obscurus 

 here studied, and both entirely agree with " P. maritimus Ehrhorn, type B " 

 described by Giliomee (1961) ; therefore, "P. maritimus, type A" at present is 

 uncertain and may perhaps be the true P. maritimus. 



Pseudococcus citriculus Green 



(Text-figs. 23, 24) 



Winged forms only known ; living specimens not available. The males are comparatively 

 slender, of medium or large size, with short antennae and moderately long legs. When 

 mounted, total body length 1232-1400 (1302)0, width at mesothorax 280-322 (294)1* ar, d 

 wing expanse 2016-2338 (2128)0. 



Body setae and pores : The body antennae and legs with fleshy and hair-like setae, about 

 27|jl long. Quadrilocular and quinquelocular disc pores present on the head, thorax and 

 abdomen, 6-90 in diameter. 



Head : Subtetrahedron ; triangular in dorsal and front views ; ventral preocular depression 

 well pronounced in lateral view. Length from apex to postoccipital ridge 122-140 (128)0 ; 

 from apex to neck 171-214 (186)0 ; width across the genae 201-229 ( 2I 4) U - Dorsal arm of 

 midcranial ridge anteriorly detached from other arms, and posteriorly meeting or almost 

 meeting the postoccipital ridge. Ventral and lateral arms forming together a Y-shaped ridge. 

 Postoccipital ridge not reaching the preocular ridges anteriorly. Preocular -f- interocidar 

 ridges well developed ; ventral rudiment of the former hardly indicated by a weak sclerotization. 

 Preoral ridge slender. Eyes : Dorsal simple eyes not projecting beyond the outer margins of 

 the head in dorsal view ; their corneae 21-24 ( 2 3)M- m diameter, and separated by 92-119 

 (104)0., i.e. 3-8-5-0 (4-3) times their corneae apart. Ventral simple eyes 24-27 (26)0. in diameter, 

 and 18-37 l 2 ?)^ apart. Lateral ocelli well developed. Cranial apophysis with truncate apex ; 

 tentorial bridge slender. Dorsal head setae : 8-1 1 (9-3) f.s. and 9-12 (10-5) h.s. on each side 

 anterior to the postoccipital ridge ; each gena with 16-23 ( I 9'°) fleshy and 2-4 (3-0) hair-like 

 genal setae. Ventral head setae on each side : 2-3 (1-3) h.s. between the ventral eyes ; 7-10 

 (8-8) f.s. and 2-5 (3-3) h.s. forming on both sides a transverse band in the area of the ventral 

 preocular depression ; ventral part of ocular sclerites with 4-7 (3-8) fleshy ventral ocular setae ; 



