AET. 2 BEETLE LARVAE OF GALEEUCUsTAE BOVING 31 



tinct chitinization around the spiracle. Epipleural sclerite with two 

 setae. Hypopleural sclerite rather small, with one primary and one 

 smaller secondary setae. Eusternal sclerite with one seta on each side, 

 sternellar sclerite indistinct. 



Eighth dbdoTimial segvient. — ^With interior and exterior scuto- 

 scutellar sclerites fused into a single plate carrying two setae on 

 each side. 



Ninth abdominal segment. — Pygidial shield with free margin reg- 

 ularly arched. Five long, pointed setae on each side in or near the 

 margin ; primaiy discal setae not developed. 



Tenth abdominal segment. — Normally developed. 



Habits. — Skeletonizes and eats holes through the leaves of species 

 of Sallx and Betula. Pupates in the ground. 



TaxonoTnic comments. — In general the larva of Lochmuea capreae 

 is very similar to the larva of Galerucella vihurni, as a comparison 

 between the above-given descriptions will show; they differ, how- 

 ever, in the two following characters : The exterior prescutal sclerite 

 of mesothorax and metathorax is without a seta in LochTnaea capreae 

 but carries one seta in Galemcella viburni, and the anterior parascutal 

 sclerite is absent in the abdominal segments of capreae but present and 

 carrying one seta in vibv/rni. There is, as far as the larva is con- 

 cerned, slight reason for the creation of a separate genus for Loch- 

 maea capreae as it is nearer to some of the species of the genus 

 Galerucella^ for instance G. viburni and G. notata than these latter 

 are to other species of their own genus, particularly G. luteola and 

 G. nym^phaeae. 



Literature. — 



Henriksen, K. L. 



1927. Danmarks Fauna No. 31, p. 346. (The author did not have a speci- 

 men of the larva before him and therefore has only quoted the few vague 

 and incorrect statements found in the literature; for instance, that it is 

 similar to the larva of Melasoma populi, which is not the case.) 



GALERUCA TANACETI Linnaeus 



(U. S. Nat. Mus. ; described from a larva in a vial marked : " Larvae found 

 26 June, 1895 ; pupa 4 July, 1895 ; imago developed 12 June, 1895. Skov- 

 rod Dam, near Copenhagen, Denmark. E. A. Rosenberg legit and dedit "). 



Mature larva (fig. 10). — From 12 to 14 mm. long. 



Head shining, blackish brown, labrum unicolored; frontal su- 

 tures whitish with an elongate whitish spot adjacent to their ante- 

 rior halves and often with a large whitish spot dorsally at each ocellus ; 

 margins of head capsule, epistoma included, shining black. Sagittal 

 carina of frons indicated by a fine black line, each ocellus surrounded 

 by a ringshaped blackish spot. Body on the upper side having 



