collected in Algeria by Rev. A. H. Eaton. 101 
Tichtensia eatoni, Newstead, 2. 
On Olea europea, and Plillyrea media, at Constantine, 
in Oct., 1895. 
Ceroplastes rusci, Linn., 2. (Plate IV., figs. 20-23.) 
@ Adult. Antenne (fig. 20) of 6 joints, of which the third is 
much the longest. Anal lobes short, conical ; after treatment with 
potash somewhat triangular and obtusely pointed, each with two 
gland-pits near the centre towards the apex. 
Stigmatic area (fig. 21) with about 12 large, irregular, pocket- 
like processes (fig. 22), near the margin a group of 3-4 circular 
spinnerets ; and on the margin an irregular row of conical spines 
(fig. 23). The external characters are not given here, as Signoret 
(Essai, p. 191) very clearly describes them ; but as he gives no 
structural characters of the adult ¢?, the description and figures 
given above may be of use for future reference. 
Hab. ‘** Constantine, 18, x., 795, near the source of Sidi 
i >) 5} d 3 
M’ cid.” . 
Ceroplastes nerii, sp. n. (Plate IV., figs. 24, 25.) 
2 Adult. External covering dull white, with a beautiful 
roseate hue ; there are one dorsal and eight marginal plates, all 
clearly defined and outlined in dark grey, the grey shading off 
and extending into the plates; nuclei pure white. Anal lobes 
slightly protruding through the covering. Dermis after treatment 
with potash non-chitinised, transparent. Antenne (fig. 24) of 7 
joints; 3 longest, 4,5, & 6 shortest, and equal. Anal lobes with 2-4 
long, slender hairs, each arising from a transparent gland towards 
the apex. Stigmatic area (fig. 25) with 20-25 grouped spinnerets ; 
margin with large, very obtuse, conical spines, arrang2d two deep 
at the centre. 
Legs normal. Long. 3°5 ; wide 2°50-3°50 ; high 1-7-2:25 mm. 
Hab. ‘ Constantine, 23, x., 795, on Neriwm oleander. 
Very local, and found only on young healthy shoots of 
this year’s growth.” 
‘This is a large handsome species, and apparently quite 
distinct. Itis like C. furidensis, Comst. (Report, 1881, 
p- 331), in having a non-chitinised skin, but differs 
in having fewer and shorter stigmatic spines, and 
marginal hairs; in C. floridensis the latter are closer 
together and much longer. 
