1896.] ENTOMOLOGICAL NEWS. 45 



described in the paper. In Lepidoptera, on the other hand, the 

 number of new generic names is very large, 170 having been 

 proposed in one paper by Warren. 



Hubbard's sketch of the Insects inhabiting the burrows of a 

 tortoise, points out a new field of observation; Wachtl's paper 

 on the larva of "the nun," suggests an important function dis- 

 charged by some of the hairs; -while Blanc has given an elaborate 

 study of the head of a Lepidopterous larva, conveying much 

 anatomical and physiological information. This paper was pub- 

 lished in 1891, a periodical devoted to technical rather than to 

 scientific matters, and has only recently come to the Recorder's 

 notice. Hansen's paper on Hemimerus shows that enigmatical 

 insect in quite a new aspect, and introduces us to what appears 

 to be a mode of viviparous reproduction previously unknown in 

 Insects. Binet's memoir on the structure of the ventral chain 

 of nerve ganglia is accompanied by experimental observations. 

 C. Janet has given excellent descriptions and figures of the 

 stridulatory organs in one of our common ants. Gonin's lucu- 

 bration on the metamorphosis of Lepidoptera, and the formation 

 of their wings is interesting, and touches some very important 

 and difficult points. 



Considerable attention has been devoted to the anatomy and 

 morphology of the terminal segments of the abdomen and their 

 sexual modifications by Verhoefly Escherich and Peytoureau. 

 This last memoir includes a summary of the subject, with criti- 

 cisms and suggestions. 



Nassonovv has been able to elucidate, to some extent, the very 

 obscure question of the development of Strepsiptera; and Nagel's 

 paper makes a valuable addition to the subject of the senses and 

 sense-organs of Insects. Lowne's comprehensive work on the 

 blow-fly, designed by the author as a resume of the principles 

 of anatomy, physiology and morphology as applied to Insects, 

 has been completed. 



Bateson's work on variation includes several entomological 

 sections, and will be found valuable even by those who are not 

 prepared to become disciples of " discontinuity," until that term 

 shall have received a more definite application. 



Plateau has contributed some sensible remarks on the subject 

 of the "protection" of Abraxas grossulariata. Redtenbacher's 

 paper on the different kinds of migratory locusts gives informa- 



