﻿NEW AND LITTLE KNOWN BRITISH APHIDES. 261 



istic under a f -power, appearing as a pruinose mealy coating under 

 a Coddington lens ; five pairs of more or less prominent dark lateral 

 spots are present, due to the absence of the mealy sculpturing. 

 Cauda black, prominent, coated with farinose matter. Legs and 

 antennae black ; venter dull greenish-brown with much mealy cover- 

 ing. Cornicles short, thick and black. On immersion in alcohol 

 all the beautiful mealy markings go, and the insect becomes a deep 

 reddish-brown. The antennae are shorter than the body, the basal 

 segment is wider but scarcely longer than the second, the third is a , 

 little longer than the fourth, the fourth about equal to the fifth ; 

 the sixth the longest, its flagellum rather more than twice the 

 length of the basal area, the fourth to sixth markedly imbricated, 

 the third less so ; sensoria on fifth and sixth normal. The proboscis 

 reaches to the coxae of the second pair of legs, acuminate, the 

 apical segment twice as long as the penultimate, both dark. 

 Cornicles black, short and rather thick, about the same length as 

 the Cauda or slightly longer, imbricated. Cauda black, slightly 

 constricted at the base, spinose, with four pairs of lateral hairs. 

 Anal plate black and spinose. A small papilla on each side of the 

 pronotum, and another just caudad of the hind wings. Abdomen 

 with a few short hairs, some showing slight apical enlargement. 

 Head flattened in front, with two median frontal hairs, slightly 

 capitate. The surface of the body shows more or less clearly hex- 

 agonal and polygonal sculpturing answering to the white sculp- 

 turing shown when alive. Tibiae with moderately long hairs. 

 Length, 1 mm. 



Food Plant. — Heather {Calliina vulgaris). 

 Locality.— By ockenhur si, New Forest, August 20th, 1915. 

 Observations. — Described from a single colony found in the 

 flowers and flower-heads of the heather in the New Forest. 

 The young are greenish with black legs and antennae ; a few 

 were pale plum colour. It is a very marked and beautiful 

 species when alive and in the adult apterous stage, which alone 

 was found. It appears to be rare, as I have frequently searched 

 both Calluna and the Ericas in England and Wales, and this 

 is the only aphis colony I have been able to find. The only 

 record I know of an aphid on Ericaceae is the species described 

 by Walker from Hardy's MSS. as Aphis erica (List. Homop. 

 Ins. in Coll. Brit. Mus. part iv. p. 1038, No. 307, 1852). This 

 is a small, grass-green, shining, flask-shaped aphid, convex 

 above, very slightly granulose ; legs testaceous ; antennae dusky, 

 longer than the body, the first and second segments greenish, 

 third long, fifth shorter than the fourth. Length | line. Found 

 in Scotland. Clearly quite a distinct insect from the one 

 described here. 



8. Macrosiphum centranthi, nov. sp. 

 Alate viviparous female. — Head brown ; pronotum with a broad 

 brown band ; metathoracic lobes brown, and a spot below the base 

 of the wings deep brown, ground-colour of thorax green to deep 



