NEMATOCERA. 85 



Wiiuiertzia tene/Za, \\"lk. 



This seems only to have been described by Walker,* and is re- 

 corded from England. 



Walker describes the imago as being testaceous, with black 

 antennie. Wings limpid, being narrow towards the base ; veins 

 testaceous ; first longitudinal vein about \ 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. 

 Antennee in (^ i6-jointed, in ? 12-jointed. Oviduct short. 



Life history unknown. 



Sub-Genus. — Asplioudylia^ Lw. 

 Four species of the sub-genus are recorded in England. Walker 

 describes several others, but they are not considered authentic. 



A. sarothamni^ Lw. 

 The larvffi live in galls produced on the twigs of Sarothamnus 

 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 ; 

 antennae 15-jointed in ^, 14-jointed in $. The ovipositor is 

 brownish-yellow and very long in this species. The oviduct, pupa 

 and palpus have been figured by Winnertz.f This species is much 

 smaller than Ulicis, and the ovipositor much longer. PI. ii. (8). 



A. ulicis, Traill. 

 (^ and ? brownish-black, paler on the breast, sides and bases of 

 humerus ; face and palpi yellowish ; abdomen shining-brown, sides 

 paler; antennae 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 ; coxse grayish. (^ genitalia yellow, $ orange. Transverse 

 veinlet indistinct ; wings iridescent, hairy. The larvae form galls 

 resembling flower buds, but larger on Ulex EuropcEus. The galls are 

 lined by a gray pubescence, on which the larvae feed 



A. genistce, Lw.:{: 

 The larvte 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. 

 t Lin. Ent. Tom. 8, Taf! i, figs. 6, 15 and 20. 

 X Vide Ann. Ent. Soc. Fr., 1S70, p. 177. 



