-OF THE- 





VOL. II. BROOKL YN, MAY . 1879. No. 1. 



List of the 



described coleopterous larvae of the United States 



with some remarks on their classification. 



BY F. G. SCHAUPP. 



The present essay on coleopterous larvae owes its existence to a 

 desire I myself felt to know something about them. In prepar- 

 ing it, I made free use of the below named works upon the subject. 



We should expect, that a systematic classification of the larvae 

 would ^correspond with that of the imagines ; for instance the 

 larvae of Buprestidae and Elateridae would be very similar, but 

 this is uot the case. 



The larvae have 13 segments, head, prothorax, meso thorax, 

 metathorax and nine abdominal segments, the last three of which 

 form the genital apparatus. 



The greater part have three pairs of legs, on the second, third 

 and fourth segments and a proleg at the last segment. The Bu- 

 prestidae, Rhynchophoridae, and some Cerambycidse have no legs 

 at all. 



The legs consist of five or six joints, coxa, trochanter, femur, tibia, 

 tarsus and moveable claw, or instead of the last two only of a claw- 

 shaped tarsus. Cicindelidae, Carabidae, Dytiscidae and Hydrophi- 

 lidae have two claws (also some Meloidae in the first stages) and 

 are thereby distinct from all other larvae, which have but one claw. 



BIBLIOGRAPY. 



"W. It. Erichson. Zur Systematischen Kenntniss der Insect enlarv en. 

 Archiv fuer Naturg. VII. p. 60 VIII. p. 363. XIII. 275. 



Candeze et Chapuis. Catalogue des lanes des Coleopteres eonnues jus- 

 i(ii'a 1853. Mem. Soc. de Liege VIII. p. 341. 



J. C. Schioedte. De Metamorphosi Eleuth. observationes. Kroyers Nat- 

 nrhistorisk Tidsskrift. VIII. p. 165. 



Westwood. Introduction to a modern Classification of Insects. 



