374 
Plant Galls — Thorner to Collingham. 
malphigii Kieff. and P. acercrispans Kieff. are second occur- 
rences. Andricus testaceipes Htg., listed below, occurs 
plentifully in the Huddersfield district, but prolonged search 
on several occasions has not resulted in the discovery of the 
alternate generation, A. sieboldi Htg. Possibly it may 
have been so well concealed as to elude observation, but 
nevertheless the question suggests itself, “ Do any of the 
parthenogenetic cynipidae sometimes, and in some districts, 
omit the agamous generation ? ’ Asterodiaspis quercicola Bche. 
again turned up, but more sparsely. Evidently the ‘ pit 
maker ’ is more widely diffused in Yorkshire than one would 
anticipate, and would be found if properly looked for. 
Eriophyes galii Karp, is not mentioned anywhere as affecting 
crosswort in the same manner as it does goosegrass. Examples 
examined contained gall mites without any trace of aphides. 
Similar specimens were obtained at Cawthorn last year. 
LIST. 
Bracken. 
Dip. Anthomyia signata Brschk. Occupation Road, Wothersome. 
W.P.W. 
Spruce. 
Hom. Adelges abietis Kalt. Near Collingham and on the Bramham 
Road, in Lendrick Hill Plantation. 
A . strobilobius Kalt. Near Collingham. Plentiful also in 
Deffer Wood, Cawthorn. 
A . (?) viridis Ratz . Growth of shoot unchecked and without 
the slightest bending at level of the gall ; on the Bramham 
Road with first -named. W.P.W. 
Willows . 
Hym. Pontania proximo, Lepel. Thorner, 5. fragilis ; S. caprea and 
cinerea, Dalton Lane. 
Dip. Rhabdophaga terminalis H. Low. Bramham Road, 5. fragilis ; 
Iteomyia capreae Winn, and var. major Kieff, Dalton Lane, 
S. caprea and cinerea. 
Ac. Eriophyes salicis Nal. Scarcroft Hill and Dalton Lane, S. caprea. 
Aspen. 
Dip. Harmandia tremulae Winn. In the angle of the Bramham and 
, E. Rigton roads. W.F. 
Lep. Nepticula argyropeza Zell. Swellings on the petiole just below 
the leaf. As the last. G.F. (see ante), 
Birch. 
Dip. Massalongia rubra Kieff. and Contarinia betulina Kieff. Dalton 
Lane. 
Alder. 
Ac. Eriophyes nalepi Fckn. and E. laevis Nal. Occupation road, 
Wothersome^. 
Hazel. 
Ac. E. avellanae Nal. Big bud, Thorner and Dalton Lane. 
Naturalist 
