Dadylophnce, 3S; 



PSEUDOCOCCUS LONGISPINUS, Tanr. 

 (Plate CLVIII.) 



Dactylopius longispinus, Targ., Catalogue, p. 32 (1869). 

 „ adonidutn, „ „ „ „ 



„ „ Sign., Ann. Soc. Ent. Fr. (5), Vol. V. p. 306 (1875). 



„ longifilis, Comst., Rep. U.S. Dep. Ag., 1880, p. 341 (1881). 



Adult female elongate ovate ; at first dull pinkish orange ; older examples 

 greyish orange {figs. 2, 3). Limbs yellowish. Dorsum thinly covered with 

 white mealy secretion, almost completely hiding the colour of the insect. 

 Margin with a complete fringe of white tassels (seventeen on each side), 

 which are shorter in front, and increase in length towards the posterior 

 extremity, the terminal four being exceptionally long, sometimes exceeding the 

 length of the body of the insect. Two short flattened filaments, together 

 forming a tube, proceed from the anal ring, and lie between the long caudal 

 processes. Under surface almost nude {fig. 3). Antenna {fig. 4) eight-jointed, 

 eighth, considerably the longest ; first, second, and third next longest, and 

 approximately equal ; fourth to seventh shortest, but varying in their relative 

 lengths. Legs {fig. 5) rather long, the tibio-tarsal joints exceeding the length 

 of the femur and trochanter ; tarsus approximately one-third length of tibia. 

 Claw {fig. 6) falcate and acutely pointed ; ungual digitules moderately dilated 

 at extremity ; tarsal digitules slender, scarcely preceptibly knobbed at 

 extremity. Margin with seventeen ceriferous tracts on each side. Cerarial 

 spines stout, conical and sharply pointed ; the first three tracts each with 

 three (occasionally four) spines, the remainder with two spines only ; those 

 on the two last segments of the body markedly larger than the others 

 (compare figs. 2ia and Zb) ; sometimes the spines on the ante-penultimate tract 

 also are slightly enlarged ; the ceriferous tracts on the terminal and penultimate 

 segments are defined by more densely chitinous areas. There is an isolated 

 spine on the frons at a short distance behind each of the anterior ceriferous 

 tracts. Cerarial pores in compact groups, especially on the terminal and 

 penultimate tracts. Anal ring with six long stout setae, approximately equal 

 in length to but more slender than the caudal setae (see fig. 7). 



Length (of Ceylon examples) 2*5 to 3*25 mm. Elsewhere the insect is said 

 to attain a length of 4 mm. 



Adult male {fig. 9) dull brown, dusted with minute curling white filaments, 

 except on the scutellum and sternal plate, which remain smooth and shining. 

 Wings iridescent. Caudal filaments opaque white, shorter than the body. 

 Antenna ten-jointed, clothed with short hair ; terminal joint with one or more 

 longer slender knobbed hairs projecting laterally from near the apex. Ocelli 

 four, black ; those on the lower surface larger and contiguous. Length ap- 

 proximately I mm. 



Male puparium white, tubular, formed of felted woolly secretion. 



Eggs pale yellowish, hatched almost immediately after extrusion. The 

 eggs and young larvae are covered by the body of the female, mingled 

 with a small amount of woolly secretion. I have observed no definite ovisac. 



