2 PROCEEDINGS OF THE NATIONAL MUSEUM vol.75 



Based on thig material, a general characterization of the larvae of 

 the Galerucinae has been worked out, and illustrated descriptions 

 are given of the species mentioned. Preceding these descriptions is 

 a key to the larvae (p. 8), and the paper is brought to an end (p. 

 40) with a discussion of the taxonomy of the subfamily.^ 



ACKNOWLEDGMENT 



Several of the descriptions in the present paper, particularly of 

 unintroduced European larvae, are based on material generously do- 

 nated to the United States National Museum by the Danish ento- 

 mological writers, Messrs. E. A. Rosenberg and J. P. Kryger, whose 

 extraordinary ability in the collecting, rearing, and determining of 

 coleopterous larvae are greatly appreciated in entomological circles, 

 both in Europe and America. The American friends of the Na- 

 tional Museum, the prominent entomologist, Dr. George Dimmock, 

 and Mr. E. M. Craighead who has made a special study of chrj'some- 

 lid larvae, have also donated Galerucinae larvae of great interest not 

 formerly represented in the collections. Detailed information about 

 these specimens will be found where the species are described. 



CHARACTERIZATION OF LARVAL TYPE OF GALERUCINAE 



Larva generally of medium size ranging in length between 7 and 

 15 mm., elongate with gmall head and a moderately large pygidial 

 shield; without urogomphi (= cerci) ; body with subparallel sides, 

 but somewhat attenuated both toward the head and the last segment, 

 under side of body rather flat and not fully as long as the upper 

 side. Segments soft skinned, mostly of the same height and width, 

 on each side of the body with one or two small, setae bearing sclerites 

 in all of the areas. Color varying depending upon the dimensions 

 and shade both of the sclerites and the skin between (figs. 4, 7, 9) ; 

 underside of the body generally lighter than the upper side. 



Setae usually moderately long and pointed on the head capsule, 

 the mouth parts, the prothoracic and pygidial shields and the legs; 

 of verj'^ different lengths and shapes on the body sclerites, varying 

 from minute to long and from pointed to capitate; inserted either 

 irregularly or in transverse rows on the surface of the sclerites 

 or radiating from a cone-shaped prolongation of the sclerites. (Figs. 

 10 to 13.) 



Head capgule strongly chitinized, shining, hypognathous ; frons 

 never extending to the occipital foramen, a distinct, usually long 



*No larvae are known from North America representing tlie tribes Scolidinl, with 

 genus Scelolyperua, Luperini, with genus Luperodes, Androlyperini, Metacyclini, and 

 Cerotomini with genus Cerotoma, all of which are listed as Galerucinae according to the 

 Imagines. 



