1S94.] 137 



It is now over 13 years since Dr. Adler published his remarkable memoir, 

 proving that many gall-flies which had previously been considered not only distinct 

 species, but also distinct genera, are merely alternating generations of one and the 

 same species. This has since been so abundantly proved by independent observers, 

 that doubt, if there were any, has long been dispelled. A French translation by 

 Lichtenstein appeared in 1881. Hather late in the day, but none the less welcome, 

 we have now an English translation by Mr. Straton, with a copious editorial intro- 

 duction, in which is embodied a lucid explanation of the theory of alternation of 

 generations, with notes on the pathological questions involved in gall production, 

 with a chapter on Cynips Kollari, a synoptical table of galls, &c. One of the three 

 folded plates is anatomical ; the others are coloured, and will enable the student to 

 identify almost any British Oak Grall with certainty. The type, paper, &c., are 

 perfect, and we have no doubt the book will be studied with interest and advantage 

 by the now somewhat numerous students of Bi'itish Galls and their producers, and 

 that they will thank Mr. Straton for having placed so remarkable a memoir before 

 them in English dress. 



#bttuarj). 



Lucien Frangois Lethierry. — We regret to announce the death of this eminent 

 French entomologist on April 4th, at Lille, aged 64. He had been a Member of the 

 Entomological Society of France since 1857, and was well known as an authority on 

 Hemiftera, more especially Homoptera. Latterly he had commenced, in conjunction 

 with Mons. Severin, of Brussels, a general Catalogue of the Hemiptera of the world, 

 of which the first part appeared in 1893. 



Dr. Jacob Spangherg. — Equally we regret to announce the death of this well- 

 known Swedish entomologist, who held a professorial appointment at Grefle. He 

 took a warm interest in the foundation of the Swedish Entomological Society, and 

 was principally an Hemipterist, but he published a Monograph of the Scandinavian 

 Psoeidce, and other papers outside his speciality. We are without particulars ; but 

 he was a comparatively young man, and visited London when on a European tour 

 not many years ago. 



oqi^tics. 



BlBMINQ-HAM ENTOMOLOGICAL SOCIETY : April IQth, 1894. — Mr. G. H. 

 Ken RICK, President, in the Chair. 



Mrs. Petley, Pedmore Lodge, near Stourbridge ; Mrs. P. W. Abbott ; and Miss 

 Titley, Four Oaks ; were elected Members of the Society. 



Mr. Colbran J. Wainwright showed a collection of Diptera made at Wyre 

 Fo rest at Easter ; amongst others there was a large series of an EcMnomyia, perhaps 

 Mr«i'«a, which had been extremely abundant throughout the Forest, more particularly 

 on the sallows ; there were also short series of Cheilosia yrossa and flavicornis, and 

 larger ones of Syrphua lasiophthalmus and Melanostoma quadrimaculata, all taken 

 on ; he sallow bloom. He roiiiarked on the boc-likc appearance of the Echinomyia 



