A NEW MYRMECOPHILOUS APHID FROM AFRICA. 3371 
Micaria pulicaria, Sund.—Captured running on a bank on Barnes 
Common with 8 8 of D. nigra on April 19th. 
Micryphantes beatus, Camb. g .—Dr. Randell Jackson tells me this 
is the name of a small spider I captured at Woking on May 29th run- 
ning on a bankin company with 8% % of Tapinoma erraticum. In life 
the spider was so remarkably like the ant, that I actually bottled it 
under the impression that it was one of the ants. (The colony of the 
ant was subsequently dug up and contained some nine or ten queens. 
One of the & 8 was sheenrall, carrying a minute yellow insect, which 
proved to be the larva of a Thrips.) 
A new Myrmecophilous Aphid from Africa. 
By FRED. V. THEOBALD, M.A., F.E.S. 
APHIS PHEIDOLEI, NOY. sp. 
Apterous viviparous feinale. 
Antenne less than half the length of the body; sixth segment and the apex 
of the fifth darkened ; the first segment larger than the second; the third a little 
longer than the fourth and much shorter than the sixth ; the fourth about as long 
as the fifth; the latter with the usual sub-apical sensorium ; ; the sixth longer than 
the fourth and fifth, its basal area about one-fifth the length of the flagellum ; the 
third to the sixth imbricated, the latter markedly so. 
Head slightly protuberant in the middle and at the sides. 
Pronotum with a papilla on each side. 
The more or less ovate abdomen has a lateral papilla between the meso- and 
meta-thoracic legs; one on the abdomen before the cornicles and one larger one 
between the cornicles and the cauda. 
The cornicles are short and thick, not as long as the cauda, and are somewhat 
expanded basally ; faintly imbricated. 
Cauda with four pairs of lateral bristles, somewhat irregularly placed, and one 
or more irregularly placed dorsal ones ; slightly spinose. 
Anal plate somewhat quadrilateral, with some scattered long hairs. 
Apparently from the spirit specimens of a dull greenish to greenish-brown 
colour; the antennz being dark at the apex of the fifth and on all the sixth 
segment. 
The cornicles are dark; the cauda appears dusky and also the anal plate. 
The legs are the same colour as the body, except the apex of the tibiz and the 
tarsi, which are much darkened. 
Length.—1‘3mm. to 1-9mm. 
Alate viviparous female. 
Apparently of similar colour to the apterous female. The thoracic lobes, 
cauda and cornicles dark. 
The short, thick cornicles are about two-thirds the length of the cauda, im- 
bricated and laterally serrated. 
The cauda is spinose and has three pairs of lateral hairs and one medio-dorsal 
sub-apical one. 
Wing venation normal ; veins apparently brownish; the inner border of the 
stigma darkened more than the rest of the stigma. 
The veins where they join the wing border have dusky areas around them on 
the membrane. 
Length.—1:‘9mm. 
Locality.—M wengwa, N.W. Rhodesia, Africa. ix. 1913. 
Notes.—Found by Mr. Dollman in the nests of an ant—Pheidole, 
sp. The specimens in spirit were sent me by Mr. Donisthorpe. There 
