2 Ins, 
INSECTA. 
monograph of Phaneropterides , and that, although the monograph itself 
was published only thirteen years ago, the number of new genera and 
species in this supplement is very largo. Redtenbacuer’s monograph 
(087) of the Conocephalidea — another subfamily of the Locimtidce — likewise 
includes an extremely large proportion of novelties. Albauda’s account 
(4) of the characters and synonymy of the Baphidlides is remarkable for 
the elaborate manner in which it is worked out. A very large number of 
new species of the Butterfly family Hesperiidce have been published in a 
somewhat unsystematic manner by Mabille (549); it is doubtful whether 
such a work contributes in the long run to the progress of entomological 
knowledge to an extent at all adequate to the labour and industry that 
must have been expended on its production. 
Scudder’s Index (786) will doubtless be welcomed as a treasure by all 
who are interested in Palaeoentomology. 
Fabre has published a fourth volume (252) of his charming work on 
the habits and instincts of Insects, and a second edition (253) of his first 
volume has been produced. Chobaut has made an interesting though 
somewdiat brief and imperfect contribution to the same subject, and has 
favoured the French people with five almost simultaneous editions 
of it (140-144). To Ex.neu we arc indebted for another step in 
Insect-optics (251). He contributes to a knowledge of the structure of 
the outer parts, and discusses the function, concluding that the Insect 
optical organ is specially elaborated for perception of changes of position 
of objects external to itself, resultant from either their movements or 
those of its individual possessor. 
Graber has published another of his important papers on embryology 
(340) ; it deals with a variety of points in the earlier development of 
several genera of Coleoptera , Urthoptera , Lepkloptera , and Hymenoptera . 
Ciiolodkovsky’s paper on the embryology of Blatta is accompanied by a 
chapter of considerable general interest to zoologists. The entomo- 
logical portion of Korschelt & Hejder’s work (482) is a well-executed 
sketch of the present state of our knowledge of Insect development. 
Petersen (648) has made a suggestive contribution on the subject of 
colour in the pupae and cocoons of Lepidoptera ; and Busgen’s paper on 
honey-dewand points of entomological interest connected therewith (114) 
is well worth perusal. 
The Recorder has more than once taken the liberty of urging on 
Entomologists the importance of indicating definitely what portion of 
the synonymy they give in their works is new. Some writers already do 
so, and as there can be no doubt as to the advantage of the course they 
pursue, it would be well that their example should be more generally 
followed. 
