ITI-VINAK'IA VITIS. -V) 



Fig. (J. Antenna of young adnlt female. X 140. 

 Fig. 7. Leg of young adult female, x 140. 

 Fig. 8. Anal ring of young adult female. X 250. 

 PI. XLIX, fig. 8. Larva after treatment with potash 



(ventral). X 80. 



Fig. 9. Antenna of the larva. X 300. 

 Fig. 10. Leg of the larva, x 300. 



PULYINAEIA VITIS, YAH. EIBESLE (SigllOret). 



(PL XL VI, figs. 1-14; PL XL VII, figs. 1-76'.) 



P'tdvinaria ribesise, Signoret; Essai, p. 219 (1872). 

 Xec Pidvinaria ribesise, $ only (Signoret), Douglas; 

 Ent. Mo. Mag., s.s., vol. i, p. 240, fig. 3.* 



Adult female at period of parturition (PL XL VI, 

 fig. 2) slightly farinose, dusky yellow, almost covered 

 with dark brown reticulations which often coalesce 

 and form indefinite transverse lines ; median line dusky 

 yellow, sometimes slightly tinged with reddish-brown ; 

 underside dusky yellow, or dull orange-yellow. Form 

 and external character of dorsal area as in typical 

 P. vitis ; but after parturition the females usually 

 change to a dark brown or chocolate-brown colour, 

 sometimes approaching black. Antennae normally of 

 eight joints (PL XL VI, fig. 7), but examples occur 

 sometimes with six or seven joints (PL XL VI, tigs. 

 8, 9) ; normal formula as in P. vitis. The legs (PL 

 XL VI, fig. 10), the dermis (PL XL VI, figs. 5, 6), the 

 mentum (PI. XL VI, fig. 11), and the stigmatic and 

 marginal spines (PL XL VI, fig. 12) are also identical with 

 those of P. vitis. Reticulations of dermis (PL XLVI, 

 fig. 5) very faint and not often traceable; they are 

 also much interrupted. 



Long, 4-8 mm. ; wide, 3-5 mm. 



* The male there described proved afterwards to be the male of a species 

 of Pseudococcus which was living in company with Pulvinaria ribesins. This 

 error was subsequently corrected in the ' Ent. Mo. Mag.,' s.s., vol. iii, p. 

 144. 



