78 CECIDOMYZID.E. 



mostly silvery. Male. Antenna twenty- to twenty-two-jointed, three- 

 fourths of the length of the body ; joints towards the base twice the 

 length of their petioles, but only half as long again towards the mid- 

 dle. Transverse veinlet at the end of the basal half of the subcostal vein 

 not as in C. rosaria at the end of the basal third of that vein. Jem. An- 

 tennaB twenty-two to twenty-four-jointed, half the length of the body. 

 Not rare. (E. S. I.) Forms woody galls on the twigs of Salix 

 aurita and of 8. cinerea, and more rarely on those of 8. caprea. 

 Noticed by De Geer (Ins. vi. 155. 27). 



3. albipennis, Loew, Pr. Pos. Gymn. 35. 24 (1850); Winn. 

 Nigro-fusca, capite nigro, antennis flavido-albis 15-articulatis, thorace 

 cinereo vittis quatuor nigris obscuris, lateribus abdoininisque iucisuris 

 ferrugineis, alis maris praesertim albis, halteribus albis apice fuscis, 

 pedibus subtus tibiis posticis tarsisque posterioribus supra quoque 

 argenteis. Long. 1 lin. 



Body clothed with black hairs. Wings with white hairs and white 

 veins ; costal vein brownish ; cubital vein almost straight, ending at 

 some little distance from the tip of the wing ; second branch of the 

 anal curved to the hind border. Male. Antennas rather more than half 

 the length of the body ; joints almost twice the length of their petioles. 

 Transverse veinlet before the middle of the subcostal vein. Fern. An- 

 tennas rather less than half the length of the body. Transverse veinlet 

 at the middle of the subcostal vein. Oviduct elongated, without valves. 



Inhabits rose-formed galls on Salix alba. 



4. Papaveris, Winn. Linn. Ent. viii. 229. 16 (1853). Nigro- 

 fusca, antennis fuscis 16-17-articulatis, thorace vittis duabus e pilis 

 flavo-argenteis, lateribus nonnunquam carneis, alis limpidis, costa pilis- 

 que nigris, halteribus abdomineque fulvis, hoc fasciis nigris, pedibus 

 fuscis subtus argenteis. Long. -|- lin. 



Transverse veinlet very distinct ; cubital vein bent forward at its 

 junction with the veinlet, beyond which it is convex in front and joins 

 the costal at some distance in front of the tip of the wing; second 

 branch of the anal vein curved to the hind border. Male. Antennae 

 seventeen-jointed, nearly as long as the body ; petioles half the length 

 of the joints towards the base, and three-fourths of the length in the 

 middle and towards the tips ; terminal joint not petiolated. Fern. An- 

 tennas sixteen-jointed, rather more than half the length of the body. 

 Oviduct elongated, without valves. 



Lives in the seed-capsules of Papaver Rhoeas and of P. 



5. albilabris, Winn. Linn. Ent. viii. 217. 4 (1853). Mas, nigra, 

 facie proboscide palpisque flavo-albis, antennis nigro-fuscis 19-articu- 

 latis, thoracis lateribus abdominisque inoisuris fulvis, alis subcinereis, 

 halteribus albidis, pedibus nigro-fuscis, femoribus tibiisque subtus aut 

 omnino albo-flavis. Long. 1 lin. 



Wings with blackish-grey down ; veins brown ; costa stout, black ; 



