NATURAL HISTORY SOCIETY OF GLASGOW. 13 



to Prof. Westwood, the bushes, after having been devastated by 

 these larvae, do not produce a proper supply of fruit for two or 

 three years. There is a brood in July and August, and a second 

 is met with from September to tlie end of October. Zaddach 

 mentions that they mine the leaves of Geum urhanum, and Kalten- 

 bach (Pflanzenfeinde, p. 582) that " the larva lives in the green, 

 hard, projecting leaf-galls on Salix capreo^,'^ where it passes the 

 winter, emerging as a fly in July. There is surely some mistake 

 about this last observation. 



C Frontal sutures deep. Antennae long; marginal nervure almost 

 joined to 2d sub-marginal. Terebra exserted. Feet yellowish-testaceous. 



7. Phaenusa betulae. 



Fenusa hetulae, Zaddach, Besclir. neuer oder wenig bekannter 

 Blattwespen, 29 (1859). Phyllotoma mellita, Newman, Healy, 

 Ent., v., 1-7. 



Black, shining, covered with a fuscous pile, especially on the head 

 and thorax. Antennae longer than the head and thorax, covered 

 with a microscopic down ; the joints thicker at the apex than at 

 the base; distinctly separated from one another; the 1st with a 

 conspicuous petiole at the base, globular, considerably larger than 

 the 2d, which is thin at the base, truncated at the apex; 3d 

 longer than the 4th; the rest shorter; the 9th conical, thinner and 

 longer than 8th. Head scarcely narrower than the thorax ; face 

 densely covered with fuscous pubescence ; sutures on the vertex 

 distinct ; frontal foveae large, and moderately deep ; the central 

 round, the lateral longer and thinner ; labrum testaceous ; palpi 

 pale testaceous. Thorax black, shining; tegulae testaceous. Abdo- 

 men shining, as long as the head and thorax, covered with a fuscous 

 pile, shorter than that on the head and thorax; apex truncate; the 

 blotch invisible ; saw projecting, sheath very hairy. Wings faintly 

 fulvous-coloured, if anything clearer at the apex; 1st marginal 

 cellule longer than 2d ; marginal nervure nearly, if not quite, 

 interstitial, i.e., joined to 2d sub-marginal; 2d sub-marginal cellule 

 not much shorter than the 1st, the sides above straight, not 

 curved, in length much longer than broad ; at the lower end of 

 the 1st sub-marginal cellule is a small black dot. Legs yellowish- 

 testaceous ; coxae, trochanters, and base of femora black; posterior 

 tarsi fuscous. 



Length 2 lines. 



