﻿260 THE KNTOMOLOOIST 



Alate viviparous fmiale. — Black and shiny with a band covered 

 with snow white meal at the base of the abdomen, beneath which it 

 is pure white, creamy white, pale pink and more rarely pale greenish, 

 and on this pale area are a few dark spots ; the posterior part of the 

 abdomen may be pale colour, with narrow transverse dark bars, and 

 there are two pairs of submedian papillae behind and five pairs of 

 lateral black papillaB before the cornicles ; the venter is pale whitish- 

 pink covered with white meal. The black antenna are shorter than 

 the body, the third segment having 64-70 sensoria ; the fourth with 

 25-30. The proboscis reaches to the third pair of legs. Cornicles 

 black, rather short, cylindrical, imbricated, in some slightly expand- 

 ing at the base. Cauda black, blunt, with two pairs of lateral hairs. 

 Legs black, except base of femora, which are yellow. Insertions 

 of the wings yellowish. Length 1-8 to 2 mm. 



The apterous females vary from dark blackish- or greyish-green to 

 black, and are covered with white meal ; when denuded some are 

 shiny ; antennae shorter than the body, of five segments only, the 

 third very long ; venter deep greenish. Cauda black. Cornicles 

 short and black. Legs black. Length 2 mm. 



The nymphcB are either fawn-coloured and mealy, with dark eyes, 

 dusky legs, black cornicles, and wing pads of pale to deep green with 

 similar coloured legs, &c., to the former. 



The food-plants are Cratcsgus, Pyrus mali and Pyrus com- 

 munis, as described by Xaltenbach. They gall or blister the 

 leaves of the hawthorn and apple, which become yellowish and 

 red and rosy-pink ; at one time the midrib region is deformed, 

 at others the leaf may be bent over at the edges, or any part may 

 become abnormal ; beneath or between the galled areas the plant 

 lice feed and breed. 



6. Aphis symphiti, Schrank. — This aphid, described by 

 Schrauk (Fn. Boic. ii. 107, 1801), and redescribed by Kalten- 

 bach (Mono, Pflauz. p. 61, (1843) from Sympkitum officinale, is 

 also referred to and described by Koch (Die Pflanz. p. 72, 

 figs. 98 and 94), from the same plant. In July, 1914, I found 

 this species in my garden in small numbers on Anchusa italica. 

 Most were apterae and a few nymphae. They occurred on and 

 inside the blue flowers, in some cases three or four mature 

 females and many young. Lichtenstein records this aphid 

 from Anchusa. The apterous females varied much in colour, 

 some being pale yellow, others pale yellowish-green, a few 

 reddish, and others dark brown and brown and green. None 

 answered exactly to Koch's figure of the apterous female, but as 

 those I found varied so much there is little doubt that it is the 

 same species. The same insect was found at Wye in July, 

 1915, on Borago officinalis, and in August, 1889, on Anchusa 

 officinalis at Ottery St. Mary, S. Devon. 



7. Aphis callunce, nov. sp. 

 Apterous viviparous female. — Black, marked with a fine mealy 

 white hexagonal and polygonal sculpturing, which is most character- 



