398 ^Yorkshire Naturalists' Union : Entomological Section. 



some cases temporarily only and had been followed by a relaxation of the 

 compression. The result had been to produce faults of an anomalous 

 kind. In most faults the down-thrown side turned upward and the up- 

 thrown side turned downward. But in some cases — as at the famous Peak 

 Fault, in the Jurassic rocks at Ravenscar, the opposite effect was noticed, 

 the down-thrown side turning downward and the up-thrown side turning 

 upward. This had been very puzzling to geologists. With the aid of 

 a diagram Dr. Gilligan showed that where an anticline had been faulted 

 diagonally across one limb by a relaxation of the forces of compression, 

 this effect might be pi'oduced. Thanks were accorded to the chairman 

 and speakers. — H.E.W. 



: o : 



YORKSHIRE NATURALISTS' UNION : 

 ENTOMOLOGICAL SECTION. 



On October 26th the members met in the York Museum, Mr. G. T. Porritt 

 presiding. Supplementary reports to those presented for the Annual 

 Meeting of the Union are as follows : — Mr. Willoughby Fabian reports 

 Nemeophila russula and Lithosia mesoniella from Strensall Common and 

 Sphinx ligustri from York. Plusia moneta was common in the same city 

 and Mr. J. Porter reports the same from Hull. At York, oa May :'5th, 

 Vanessa antiopa was taken, Zeuzera pyrini in July, and Chaerocampa elpenor 

 larvae in September is reported from the same place by Mr. E. H. Tye. 

 Mr. Arthur Smith reports Sesia culiciformis, Eupithecia lariciaia from 

 Warthill, a spotless variety of Epinephele hyperanthus, Acidalia emarginaia, 

 Epione apiciaria, E. paralellaria (plentiful) and Cosmia paleacea from Sand- 

 burn, and Dicranitva bifida and Collix sparsata from Askham Bogs. Mr. 

 G. T. Porritt reported the Neuropteron Chrysopa ienella in abundance at 

 Huddersfield after an apparent scarcity for some years. Dr. H. H. 

 Corbett reported Pararge megaera from Doncaster. 



Mr. W. J. Fordham reports that ' Mr. Porritt showed Coniopteryx 

 aleuYodiformis ; Mr. Hewitt showed the beetle Acanthodnus aeditis taken 

 in York (of course imported in timber). Mr. Thompson's list was Acidota 

 cruentata, Demetrias atricapillus, Tachinus proximus, Laihrobhim boreale, 

 L. niuUipunctum, Tvogophloeits elongatulus, Fissodes notatus, Rhizophagus 

 ferruginens, Bruchits rufimanus, Trachyphloeus scaber, Magdalis armigera, 

 M. pruni and Hylastes ater. 



Dr. Fordham exhibited nearly 70 species of Hymenoptera new to 

 the county, including some rare Ichneumons, Diptera and Sawfiies. 

 Also beetles including Bembidium doris and Molorchus minor, both new to 

 Yorks., and a specimen of the ' fife-beetle ' Melanophila acuminata from 

 Crowthorne, Berks. 



Several ichneumons, etc., bred by Rev. C. D. Ash from lepidopterous 

 larva;, were shown, including — 



Apanteles lacteipevinis ? (new) xrussula. 

 Hemiteles fulvipes (new) x grossalariata. 



Promethus sulcator \ Saxton : Both new to Yorks. 

 Perithous divinator J C. D. Ash. 



Clistopv ga incitatur [Askham Bog, W. J. Fordham. 

 Hemiteles cingiUator J Both new to Yorks. 



The parasite (braconid) Spathius exarator which preys on the Death 

 Watch (Anobium) from Saxton (C. D. Ash ; new to Yorks.), and the 

 rolled leaves of Oak rolled by Attelabus curculionoids from Huddersfield 

 district (W. Falconer).' 



Neuroptera. — Mr. Porritt showed Coniopteryx aleyrodiformis and 

 Limnophilus hirsiitus from Huddersfield, and Mr. B. Morley the snake-fly 

 Raphidia notata from Wakefield. 



Lepidoptera. — Mr. Porritt showed Abraxas grossularitata varieties 

 nigra, nigrosparsata and Varleyata nigrosparsata bred from Huddersfield 



Naturalist, 



