OF PSEUDOCOCCIDAE & ERIOCOCCIDAE 139 



Abdomen : 403-433 (4i8)[i long and 266-304 (281)11 wide. Tergite of segment I small ; 

 those of segments VIII and IX + X large. Sternites of segment VIII ill-defined. Ostiohs 

 large and prominent, 43-49 (45) \jl long at orifice. Abdominal setae on each side : Dorsal setae : 

 Fleshy setae 2-3 on segments I to III, 3-4 on segments IV to VI, and 2-4 on segments VII 

 and VIII ; hair-like setae 2-3 on segment I, 3-4 on segments II to V, 2-3 on segments VI and 

 VII, and 2-4 on segment VIII. Pleural setae : Fleshy setae 2-5 on segment I, usually 1-2 

 on segments II to VII (sometimes 3 on segments II and V), and 4-6 on segment VIII ; hair- 

 like setae 1-3 on segment I, 4 on segment II, usually 5 on segments III to VII (sometimes 

 6 on segment VI), and 3-5 on segment VIII, including one conspicuously longer seta. Ventral 

 setae : Fleshy setae on segments II and III, 3-5 on segment IV, 3-4 on segment V, 2-3 on 

 segments VI and VII, and absent on segment VIII. Abdominal pores : Segments I to VII 

 with 3-6 (4-3), 1-2 (1-3), 1-2 (1-3), 1-2 (1-5), 1-2 (1-5), 1-3 (i-8), and 3-4 (3-8) pleural pores 

 respectively. 



Glandular pouch well developed ; seta of glandular pouch comprise a pair of 336-366 (354)^1 

 long tail setae and one 64-79 (73) \i long seta ; the ratio length of the tail setae to the total 

 length of the body 1 : 34-40 (37). 



Genital segment : Comparatively large ; triangular in dorso-ventral view. Style more or 

 less straight in lateral view ; apically rounded. Penial sheath 183-214 (ig8)(i. long and 104- 

 107 (io5)(jl wide, i.e. the ratio length to width 17-21 (19) : 1, and the ratio its length to the 

 total length of the body 1 : 6-3-6-9 (6-6). Basal ridge of penial sheath and its projection well 

 developed ; process of penial sheath absent. Aedeagus comparatively long and slender, 

 anteriorly reaching the cavity of abdominal segment VII and tapering to a sharply pointed tip. 

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

 the style ; ventrally, 10-15 ( I2 '3) much finer setae scattered on the penial sheath. 



Material : 4 specimens only were available, collected by C. R. Wallace, on Citrus, 

 in Sarawak, xi.1963 (received from Dr. D. J. Williams). 



DYSMICOCCUS Ferris, 1950 



Dysmicoccus alazon Williams 



(Text-figs. 25, 26) 



Only the winged forms known. These are greenish brown with dark red eyes. A relatively 

 long and slender species, with short antennae and moderately long legs. . Mounted specimens 

 1274 — 1470 (1358)11 long, 280-322 (294) [x wide at mesothorax and 2632-3094 (2800) \i wing 

 expanse. 



Body setae and pores : Body and appendages with numerous fleshy and hair-like setae, 

 about 24JJ. long. Cjuadrilocular and quinquelocular disc pores occur on the head, thorax and 

 abdomen, 6-9 (x in diameter. 



Head : Subtetrahedron ; subtriangular in dorsal and front views ; ventral preocular 

 depression well pronounced in lateral view. Length from apex to postoccipital ridge 116-134 

 (i25)(x ; from apex to neck 168-198 (i8o)(x ; width across the genae 198-229 (214)^. Dorsal 

 arm of midcranial ridge anteriorly separated from other arms, and posteriorly fading out before 

 reaching the postoccipital ridge. Ventral and lateral arms forming a Y-shaped ridge. Post- 

 occipital ridge anteriorly confluent with preocular ridges. Dorsomedial part of epicranium 

 slightly raised. Preocular -\- interocular ridges join the postocular ridge below the ocellus ; 

 ventral rudiment of the preocular rige indicated by a weak sclerotization. Preoral ridge slender. 

 Eyes : Dorsal simple eyes projecting beyond the outer margins of the head in dorsal view ; 

 their corneae 21-27 ( 2 4)^ m diameter and separated by 101-116 (iio)|a, i.e. 3-9-5-3 (4-5) times 

 their diameter apart. Ventral eyes 24-31 (27)^ in diameter, and 21-34 ( 2 &)\>- apart. Lateral 



