AQUATIC INSECTS IN NEW YORK STATE 289 
Rupertsberger, Mathias. Biologie der Kifer Huropas. Bine Ueber- 
sicht der biologischen Literatur gegeben in einem alphabetischen Person- 
en- und systematischen Sach-Register nebst einem Larven-Cataloge. Linz 
a.d. Donau. 1880. O. 295p. 
Die biologische Literatur tiber die Kafer Huropas vcn. 
1880 an. Mit Nachtrigen aus friiherer Zeit und einem Larven-Cataloge. 
Linz a. d. Donau und Niederrana. 1894. O. 310p. 
The two papers given above include the references to the literature on 
the transformations of Huropean Coleoptera. They are useful to the 
American student for the references to the species common to Europe and 
North America that they contain. The larger families of Coleoptera are 
found in both countries, and, by looking up these references, it is possible 
to determine the type of larvae to be expected in the American fauna in 
‘those families where they are unknown. 
Schiodte, J. C. De Metamorphosi Eleutheratorum observationes: Bidrag 
til insekternes udeldviklingshistoire. Kjobenhaven. 1861-83. 2v. O. 86pl. 
Each volume is made up of a number of separate parts which were 
originally published separately in the Saertryk af Naturhistorisk Tidsskrift. 
Though this work deals entirely with European insects, yet the families 
and genera in most cases are found in this country. The text is written 
in Latin, the descriptions are very full and suggestive. The figures are 
excellent; they are printed from copper plates and show the entire form 
of the larva and pupa, together with many useful structural details. 
(Perris, Edouard. Larves de Coleopteres. Paris 1887. gr. O. 590p.. 
14pl. with 579fig. 
This work consists mainly of descriptions of larvae and pupae, and the: 
figures deal almost entirely with structural details. 
In hope of interesting and aiding others in the study of the 
transformations of the Coleoptera, the following table has been 
prepared. It is based in great part on the facts contained in 
the papers mentioned above and deals only with the more 
important families. No one can be more conscious of its imper- 
fections than the writer; but a poor tool is better than no tool. 
KEY TO FAMILIES OF COLEOPTEROUS LARVAE! 
a Tarsi with two claws 
b Mandibles of the usual type, with teeth at the base or at middle 
c¢ Abdomen not provided with long, slender lateral filaments 
d Cerci present, in some cases small; ocelli six 
e Abdomen and legs ambulatory; abdomen with eight pairs of 
SUE OLERIN Se Sho are oh Marta a eaten sa Wp ee me a wee Carabidae 
ee Abdomen and legs natatory; abdomen with seven pairs of 
SLs rtiate ay ase PR een ese 0 week ke ae pes Amphizoidae 
dd Cerci wanting; ocelli four;*with hooks on the dorsum 
Cicindelidae 
ce Abdomen provided with long, slender lateral filaments which serve 
MUCH CRIS DtiRate tev ath oAN v umlislaiss dace uleta’as f Week wis +yrinidae 
1In the following table the term setae is applied only to those small 
hairs that arise from a single hypodermal cell like those of the Dermes- 
tidae, Cerambycidae, and Buprestidae; and the term spine is restricted to 
the strongly chitinized hairs that are developed as projections of the body 
hepa like those of the Coccinellidae and the Cassidinae of the Chrysomel- 
} ae. ; 
