68 AN ACCOUNT OF BRITISH FLIES. 
Legs almost black, white beneath. Oviduct long, the third segment 
yellow. Male genitalia dark. 
C. galeobdolontis, Wtz.* = C. Strumosa, Bremi. 
The larve live in the stalks of Galeobdolon luteum, and form woolly 
galls. The description of this species is taken from Inchbald’s paper 
quoted below. 
6 Antenne with joints not pedicelled as in the 2. Wings limpid,. 
gray pubescence in both sexes, the anal fork extending to the inner 
margin, more deeply coloured in ¢ than in 9. MHalteres darker 
(than 2). Abdomen prominently hl pape Legs longer in com- 
parison of its size. 
? Antenne fuscous, 13-jointed, pedliceliated. Thorax with disc 
pale fuscous. Halteres pale yellow. Oviduct pale yellow. Brermi 
in his monograph gives a good figure of the gall of this species 
(Pl. II., Fig. 26), and says concerning it: “In den gallen, welch ich 
dieses Jahr Ende Februaris fand, und welch vorziiglich gross und 
ganz frisch waren beobachtete ich die Larren bereits eingesponnen, 
aber noch nicht in nympten verwandelt.”} 
The imago appears in May and June. 
C. salicina, Schrk. = C. Frischit, Bremi. 
ZImago.—Brownish-black ; face and palpi brown, yellowish bands. 
on the side of thorax. Abdomen pinkish-brown, with black bands on 
the dorsum ; tawny beneath in the 2. Costa of wings thick and 
almost black ; second longitudinal vein very nearly straight, ending 
near tip of wing. Antennz, 16-17-jointed in 4, as long as body ; in 
the @ always 16-jointed, about half the length of body. Legs with 
silvery hairs on under-surface ; halteres white, gradually becoming 
dusky at the apex. 
Walker says, “‘ The larvee live in the withered tips of the young 
shoots of Salix Caprea and S. alba, and also according to Muller.” 
They live in the young terminal leaflets of the shoots, which wither 
away and form a bud-shaped nidus, three to eight larvz in each. 
C. serotina, Witz. 
The larve live in the tops of the shoots of Hypericum humifusum ; 
they drop to the earth before pupating. 
Imago. — Blackish-brown; head, antennze and palpi brown; 
antenne, r6-jointed in ? ; 16-17-jointed in ¢. ‘The halteres are 
pure white in the living specimen, drying yellowish white. The 
abdomen of ¢ is sometimes tawny; each segment having black 
hairs on the posterior border ; in ? the abdomen is flesh-coloured, 
* For more detail refer to Ent. W. Int., 1861, p. 69. 
+ See Ent. W. Int., 1861, p. 56. 
t Ent. Mo. Mag., vi., 1869, p. 109. 
