4 Ins. 
XIII. INSECTA. 
Diptera are very interesting. Verhoeff has continued his studies on 
the morphology of the abdomen and sexual organs of Coleoptera ; he 
considers that the lady-birds ( Coccinellidm ) are so different from other 
beetles that they should form a primary division of the order. 
Peytoureau (863) has brought into collective form his studies on the 
external parts connected with the genital structures, and has accompanied 
them with some general considerations on the various views that are held 
as to the morphology and phylogeny of Insects. Spuleii has given a 
very interesting paper (1096) on the scales and colour of Lepidoptera. 
As the result of an examination of the male organs of Vespa germanica , 
Kluge (608) finds them so variable that he considers species should only 
be based on such distinctions with much caution. 
Heymons has produced a very important work (502) on the embryo- 
logy of Orthoptera, introducing us to new aspects on very important 
points. The same author’s work (503) on the segmentation of the body, 
puts his views, on this apparently simple matter, in a concise form, though 
it is clear much still remains to be said on this subject. 
Hart’s paper (489) on the entomology of the Illinois river makes a 
considerable and pleasing addition to the literature of Insect transforma- 
tions. Janet (556) has given us another of his valuable studies of 
Hymenopterous life. Bruce’s report (150) renders it probable that the 
Tsetse fly is only a secondary agent in the spread of the disease so much 
dreaded in Africa. Cu^not has published an important paper on the 
physiology of Orthoptera (267). P^rez (851) has discussed a number of 
points in connection with the instincts and habits of Hymenoptera ; some 
of his criticisms deal with points that have been traditional for perhaps 
too long. Weismann (1229) has roturued to a favourite subject, the 
seasonal dimorphism of butterflies, and has published the results of some 
interesting experiments. The second part of Eimer’s work (326) dis- 
cusses some of the wider points in connection with variation, ho being 
strongly opposed to the ordinary views as to natural selection. Those 
who wish for an idea of some of the modern suggestions as to mimicry, 
phylogeny, variation, and the meaning of various terms proposed for use 
iu discussion of these subjects will do well to refer to this work. 
I.— TITLES* 
1. Abeille, E. de Perrin. Description d’un Buprestide nouveau. 
Bull. Soc. ent. France, 1895, p. x. [Coleoptera.'] 
2. . Deux nouvelles esp&ces de Coleopteres. T. c. pp. xxiii & xxiv. 
3. . Buprestides palearctiques reputes nouveaux. T. c. pp.cxvi-cxxvi. 
[ Coleoptera .] 
* An asterisk prefixed to a quotation indicates that the Recorder has not seen the 
Journal or Work referred to. 
