ABT. 2 



BEETLE LARVAE OF GALERUCINAE BOVING 21 



Tenth abdominal segment. — Anteriorly carrying a transverse, nar- 

 row unpaired eclerite; on each side a lateral, paired, small, and more 

 rounded sclerite armed with a few setae. 



Leg (fig. 5). — Coxa black; trochanter, femur, and tibia reddish 

 brown with black distal ends ; claw black. 



Habits. — Feeds on the leaves of most species of elm ( Uhnus) , skele- 

 tonizing them from below, at times completely denuding the trees. 

 Transforming to pupa at the bases of trunks or in crevices in the 

 ground, etc. ; no cocoon. 



Literature. — 



Bbitton, W. E. 



1907. Connecticut Agr. Exp. Stat., Bull. 155. 

 Maelatt, C. L. 



1908. U. S. Dept. of Agr., Bur. Ent., Circ. No. 8, new ed. (Species intro- 

 duced into United States about 1837.) 



SiLVESTKI, F. 



1910. Boll. Lab. Zool. R. Scuola Super. Agr. Portid, vol. 4, pp. 246-290. 

 (Eggs, the three larval stages, pupa, imago; life-history; seasonal his- 

 tory ; parasites, Lehia scapularis feeding on eggs, larvae, and pupae of 

 the species ; many figures of habitus and details.) 

 Hekrick, Glen W. 



1913. New York, Ck)rnell Univ. Agri. Exp. Sta., Bull. 333, p. 491. 

 Woods, W. C, 



1924. Maine Agric. Exp. Sta., Bull. 319, p. 136. 



GALERUCELLA species 



(U. S. Nat. Mus. ; described from lai-va in vials marked: *' Galerucella 

 sp., destroying elms, Nanking, China, June 13, 1911. Rec. by U. S. 

 Dept. Agri., July 10, 1911, from A, W. Bowler (?) of the University of 

 Nanking.") Not reared. 



Length about 12 mm. The larva of this species is slightly dif- 

 ferent from the larva of G. luteola, as known in this country, the 

 setae of the undetermined species being somewhat stronger and the 

 color of the body being clear lemon-yellow with a single, broad, 

 median, longitudinal, black band. The sclerites are all black and a 

 rather large black spot in the skin surrounds the abdominal spir- 

 acles. The pygidial shield is yellow with black marks in the discal 

 part. 



GALERUCELLA VmURNI Paykall 



(U. S. Nat. Mus.; larvae described from vial marked: " Donse, Seeland, 

 Denmark ; larvae found June 7, 1896 ; imago developed July 4, 1896 ; 

 E. A. Rosenberg leg. et ded.") Reared. 



Mature larva (fig. 23). — ^About 8 mm. long. 



Head shining dark brown, labrum black with an anterior, light- 

 brown median spot. Body with membranous parts greenish yellow ; 

 prothoracic shield light yellowish with dark chitinous specks, me- 



