80 Coccidae Observed in Durham and N. Yorkshire. 
what local, both at Birtley and in Middlesbrough. I have 
taken it from both blackthorn and hawthorn but certainly 
not from the plant Salix caprea from which it derives its name. 
Lecamium coffeae (Walker) (=hemisphaericum, Targioni- 
Tozzetti).—My friend Mr. John Baxter, late of Birtley, but 
now in the army, discovered this on a fern of the genus Pteris 
at Birtley. I cannot resist giving Mr. Baxter a word of thanks 
here for help rendered in searching for minute species of all 
groups—help I hope he will be able to continue when the war 
is ended. 
Dactylopius citi (Risso).—This was very common on young 
orange trees, aspidistras, etc., etc., in a greenhouse at Birtley. 
Dactylopius longispinus (Targioni Tozzetti).—With the 
above on various plants, including asfidistra, aralia, etc., at 
Birtley. This, with the preceding, is the Mealy-Bug of 
gardeners. 
Dactylopius walkert (Newstead).—Rather scarce on the 
marram and other grasses on the sandbanks at Redcar and 
Marske. 
Pseudococcus aceris (Signoret).—This species has proved 
unaccountably scarce and has only occurred to me onée, and 
that in small numbers, on blackthorn at Chester-le-Street. 
Ripersia subterranea (Newstead).—When working ant’s 
nests on the sandy ground at the base of the sea banks at the 
Black Hall Rocks, just north of the hotel, I found this sparingly 
on grass roots in the nests of Lasius flavus. I have not, how- 
ever, seen the ant for a year or two, 1.e., since the new Black 
Hall Rocks Colliery was opened. 
Eriococcus insignis (Newstead).—Not common on grass on 
Waldridge Fell, and only on the banks of the burn. 
A pterococcus fraxint (Newstead).—I got this not uncommon - 
ly on an ash in the village of Birtley two years ago. This 
provided the first northern record, but the hopes I formed 
then of finding it well distributed have been unsatisfied. 
Cryptococcus fagi (Barensprung), the Felted Beech Coccid. 
—Common at Ravensworth, but rare nearer Birtley in Durham. 
Quite common in Guisbrough Park Wood, near Ormesby and 
Marton in Yorkshire. On beech (Fagus sylvatica) of course. 
Newsteadia floccosa (De Geer).—This interesting and curious 
looking creature has occurred, although not freely, amongst 
Polytrichum, at Eston (Yorks.) and on Waldridge Fell (Dur- 
ham). It occurred in much drier spots than its relative 
Orthezia cataphracta. 
Orthezia cataphracta (Shaw).—This occurs everywhere on 
the moors, amongst very damp sphagnum, in this district. In 
Durham it is just as abundant in similar spots on Waldridge 
Fell, although rarer on Birtley Fell, occurring there rather 
amongst Polytrichum and rushes. 
Naturalist, 
