OF WASHINGTON, VOLUME XVI, 1914 OO 



On the Abdominal Structure of the Beetle Larvae of the Campodei- 



formType.. Dr. Adam Boving 



Ceratopogoninae Sucking the Blood of Caterpillars Frederick Knab 



Notes on Some Forest Coleophora with Descriptions of two New 

 Species Carl Heinrich 



A Revision of the North American Species of the Family Perilampidse 



J. C. Crawford 



ON THE ABDOMINAL STRUCTURE OF CERTAIN BEETLE LARVAE 

 OF THE CAMPODEIFORM TYPE. A STUDY OF THE RELA- 

 TION BETWEEN THE STRUCTURE OF THE INTEGU- 

 MENT AND THE MUSCLES. 1 



BY A. G. BOVING, Ph.D., Bureau of Entomology. 



Doctor Hopkins' classical monograph of the genus Dendroctonus, 

 1909, 2 was the first successful attempt to formulate a complete 

 and practical terminology for the external structure of a Coleop- 

 terous larva, and may well serve, as Doctor Hopkins expressed 

 it in his introduction, "as a guide to the determination of further 

 facts relating to insect anatomy in general." The need of such a 

 uniform terminology for the Coleopterous larva as elaborated by 

 Doctor Hopkins in this monograph, had long been felt, because a 

 truly comparative description is not possible without a defined 

 terminology comprising all the body parts. The descriptions of 

 even Schiodte, the unsurpassed master of larval classification, 

 are lacking in this respect. The work of Doctor Hopkins was 

 readily appreciated by students of the subject. Thus Henrik- 

 sen 3 Kemner 4 Rosenberg, 5 and the writer 6 have at once adopted 

 his terminology in so far as it was found applicable to the so- 

 called compodeiform larval type with which these authors worked. 

 The external skeleton of the abdominal parts of this campodei- 



1 Contribution from Division of Forest Insect Investigations. Bur. 

 of Ent., U. S. Dept. of Agric. 



2 Hopkins, A. D., The genus Dendroctonus. (U. S. Dept. Agric., Bur. 

 of Ent., Tech. Ser. no. 17. Part I, Washington, D. C., 1909, pp. 57-64. 



3 Henriksen, Kaj L., Danske Elateridelarver, Entomologiske Meddelel- 

 ser, II ser., vol. iv, 1911, pp. 225-331. Idem, Pragtbiller og Smeldere ' 'Dan- 

 marks Fauna," published by Dansk Naturhistorisk Forening, 1913. 



4 Kemner, A. Beitrage zur Kenntnis einiger Schwedischen Koleop- 

 terenlarven, Arkiv fur Zoologie, Bd. 7, no. 31, 1912, p. 1-31. 



5 Rosenberg, E. C., Bidrag til Kundskaben om Billernes Levevis, Udvik- 

 ling og Systematik. Ill, Billefauna i Dyreboer, Entomologiske Meddelel- 

 ser, vol. 10, 1913, pp. 37-76. 



6 Boving, Adam, Nye Bidrag til Carabernes Udviklmghistorie I Ento- 

 mologiske Meddelelser, II ser, vol. in, 1910, pp. 219-376. Idem, Nye 

 Bidrag til Carabernes Udviklingshistorie, II. Entomologiske Meddelelser 

 II, ser. vol. iv, 1911, pp. 129-180. 



