NEMATOCERA. 85 
Winnertzia tenella, W\k. 
This seems only to have been described by Walker,* and is re- 
corded from England. 
Walker describes the ‘mago as being testaceous, with black 
antenne. Wings limpid, being narrow towards the base; veins 
testaceous ; first longitudinal vein about 4 length of wing; second 
longitudinal vein curved towards the tip of the wing, parallel to the 
border, ending near the tip ; first branch of third longitudinal obso- 
lete ; second curved abruptly and slightly obliquely to the border. 
Antenne in ¢ 16-jointed, in 9 12-jointed. Oviduct short. 
Life history unknown. 
SuB-GENuSs.— A sphondylia, Lw. 
Four species of the sub-genus are recorded in England. Walker 
describes several others, but they are not considered authentic. 
A. sarothamnt, Lw. 
The larve live in galls produced on the twigs of Savothamnus 
scorparius. ‘The galls are small bud-like structures, and in these the 
metamorphosis takes place. The perfect insect is dark gray, with 
tawny head, scutellum, pectus and metathorax. Wings brownish ; 
antennz 15-jointed in ¢, 14-jointed in 9. The ovipositor is 
brownish-yellow and very long in this species. The oviduct, pupa 
and palpus have been figured by Winnertz.+ This species is much 
smaller than U/icis, and the ovipositor much longer. PI. ii. (8). 
A. ulicis, Traill. 
d and 2? brownish-black, paler on the breast, sides and bases of 
humerus ; face and palpi yellowish ; abdomen shining-brown, sides 
paler; antennz 13-jointed, not so long as body ; the joints following 
the two basal ones decrease in length until the last two, which 
are stout and form a knot. Halteres and-legs yellowish, varying to 
brown ; coxz grayish. d genitalia yellow, ¢ orange. ‘Transverse 
veinlet indistinct; wings iridescent, hairy. The larve form galls 
resembling flower buds, but larger on Ulex Europaeus. ‘The galls are 
lined by a gray pubescence, on which the larvz feed. 
A. genista, Lw.t 
The larve form green galls on Genista Germanica, and meta- 
‘ morphose there. This species is larger than the above. 
* Vide Schiner, Die Fliegen, vol. ii., p. 406. 
+ Lin. Ent. Tom. 8, Taf. 1, figs. 6, 15 and 20. 
t Vide Ann. Ent. Soc. Fr., 1870, p. 177. 
