Dactylopiince. 3 7 ^ 



D. A more or less complete marginal series of ceriferous tracts. 

 {a) Tarsus of mid leg approximately half length of tibia. 

 (ay) Anal lobes with two spines only. 



{or) Caudal setae much longer than those on anal 

 ring. Spines on terminal segments short. 



Marginal tassels short citri. 



{b-) Caudal seta; scarcely longer than those on 



anal ring. Marginal tassels long citriculus. 



{b^) Anal lobes with from four to six spines monticola. 



[b) Tarsus of mid leg exceeding half length of tibia. 

 {aS) Ceriferous tracts indefinite ; dorsal osteoles in- 

 conspicuous filamentosiis var. corymbatus. 



(b^) Ceriferous tracts well defined ; dorsal osteoles 

 large and conpicuous. 

 (a-) Eighteen pairs of ceriferous tracts ; all with 



spines of approximately equal size lilacimis. 



{fP) Seventeen pairs of ceriferous tracts ; posterior 



spines enlarged brotnelics. 



{c) Tarsus of mid leg less than half length of tibia. 

 {a\) A single elongated seta on anal lobes. 



{a?) Tibia of hind limb without translucent pores longispinus. 

 {b'^) Tibia of hind limb with conspicuous trans- 

 lucent pores. 

 {a?) Hind tibia markedly dilated; translucent 



pores crowded maritimus. 



ij^) Hind tibia not dilated ; translucent pores 



scattered comstocki. 



(^') Several elongated seta; on anal lobes ; marginal 



fringe of tassel short debregcBsics. 



PSEUDOCOCCUS VIRGATUS? Ckll 

 (Plate CXLIX.) 



Dactylopius virgatus, Cockerell, The Entom.^ Vol. XXVI. p. 178 (1893). 

 Daclylopius ceriferus, Newstead, Ind. Mus. Notes, Vol. III. No. 5, p. 24 



(1895)- 



Dactylopius talini, Green, Ind. Mus. Notes, Vol. IV. No. i, p. 7 (1896). 



Pseudococcus marchalli, Vayssiere, Bui. Sac. Ent. Fr., Vol. XVII. p. 366 

 (1912). 



Pseudococcus bicaudatus, Keuchenius, Medel. v. h. Bessekisch Proefstation,^ 

 Djemba, No. 16, p. 63 (191 5). 



Adult female (figs. 2, 3, 4, 5) at first dull orange, afterwards purplish, paler 

 beneath. In each stage, after a change of skin, the insect is yellowish, gradually 

 assuming the darker tint before the next moult. (Newstead describes D. ceri- 

 ferus as being olivaceous beneath and paler above.) Dorsum powdered with 



