/HT. L> HEP:TLE larvae of GALERUCIXAE — BOVING 37 



larger and flatter than in prothorax, no seta; posthypopleural scle- 

 rite (^epinieron) convex and similar to that of prothorax, one seta 

 present. Eusternal sclerite crescent-shaped, with two or three small 

 setae. Each stet-nellar sclerite distinct but small, carrying one 

 seta. Mesothorax with a well developed, chitinized poststernellar 

 area ( = spinisternmn, Crampton) ; metathorax without this area. 



FivHt to eighth ahdomlnal segment>; (fig. 14). — Dorsally divided 

 into three distinct transverse areas, namely, the prescutiim, the scu- 

 tum, and the scutellum. Ventrally likewise divided into three trans- 

 verse areas, namely the eusternum, the sternellum, and poslernellum, 

 the last-mentioned area forming an intersegmental band. Interior 

 prescutal sclerite fused vvith the corresponding sclerite oi' tlie other 

 side into a single, median, transverse, oval, compound sclerite with 

 two setae on each side; exterior prescutal sclerite well developed, 

 broadly oval to circular, carrying two setae. Scutal sclerite trans- 

 verse, elongate-oval to lanceolate, in the sagittal line approaching 

 the scutal sclerite of the opposite side but not fused with it, carrying- 

 two setae. Interior scutellar sclerite fused with the interior sclerite 

 of the other side into a median, transverse, compound sclerite, in size 

 and form very similar to the prescutal sclerite. two setae on each 

 side; exterior scutellar sclerite distinct, circular, nearer the sagittal 

 line than exterior prescutal sclerite, considerably smaller than the 

 latter and carrying onty one seta. Parascutal area with (1) a well 

 developed anterior sclerite carrying one seta, (2) a ring-shaped 

 sclerite surrounding the spiracle located directly behind the anterior 

 sclerite, and (3) a posterior sclerite, twice as large as the anterior 

 sclerite, nearer the sagittal line than this sclerite and carrying two 

 setae. Epipleural sclerite large, convex, with three setae. Hypo- 

 pleural sclerite similar to the epipleural sclerite, and with three 

 setae. Eusternum with a large, oval, median, unpaired sclerite with 

 three or four setae on each side, and also with an accessory sclerite 

 at each end of the median sclerite; accessory sclerite without setae. 

 Sternellar sclerite (or, probably, parasternal and sternellar sclerites 

 fused) well developed, paired, with two setae. Posternellar sclerite 

 thin and without setae. 



Ninth ahdomlnal segment. — Pygidial shield smoothly and uni- 

 formly chitinized, transverse, elliptical, small, only half as long as 

 wide. Five setae on each side in a single row along the posterior 

 margin, two similar setae in the central portion of the shield. Ven- 

 tral part of segment with a single, transverse, narrow sclerite with 

 three small setae on each side. 



Tenth ahdormval segmer^t. — With a ring shaped chitinization at 

 base. 



