CIIAtLIODlS. 233 



labiales inediocres, crassiusculi, reciirvi, articulo sccundo subclavato, 

 tcrininali mnlto brcviore, subacuto. llaustellum brcvc, mulura. AUu 

 loiit;-e ciliatic, antcriorcs cloiip;ata', hi dorso sqiiamaio-deul alfP , pos- 

 tcriorcs laiiccolaUe ; antcriorcs: cclliila scciuularia indicnta ; vena 

 apicalis fiircata supra ct infra apiccin exit, infra earn rami quinquo ; 

 snbmediana simplex ; vena subdorsalis brcvis, furca snbobsolcta ; pos- 

 teriores : ccllula costalis valdc am;-ustata : ccUula mediana clausa in 

 costara unicam, in margincm posticum quin([ue vcnas emittit, inter sc 

 non^counexas. 



Head smooth ; the forehead obtuse. Autcnnse longer than the ab- 

 domen, setaceous, with rather short, cloaehj set jobils (the basal joint 

 short), with short hairs. Labial palpi of moderate length, rather thick, 

 recurved ; the second joint subelavatc ; the terminal joint much shorter, 

 rather acute. Tongue short and naked. AVings with long cilia, the 

 anterior elongate, toith toolh-like projections of scales 0)i the ini/cr marf/in, 

 the posterior lanceolate. In the anterior wings the secondary cell is 

 indicated ; the furcate (qjical vein terminates above and below the apex, 

 below it arc live veins; the submedian vein is simple; the subdorsal 

 short, with a rather obsolete fork; in the posterior wings the costal 

 cell is extremely narrow, the closed median c^l emits one vein to the 

 costa and five separate veins to the liinder margin. 



Of this genus wc have {\\\v.c species ; several others arc known 

 to oceui' on the continent. ((Jne of our species, insecnrellKS, shows 

 a slight discrepancy in the ncuration of the -wings; tlic apical 

 vein of the aiiterior wings being sluqJe, and below it arc six 

 veins ; the apex of the submedian is also fhlckeaed.) Little is 

 known of the habits of any of the species except Charoplnillcllus ; 

 this is double brooded, the larva feeding at the end of June and 

 beginning of July, and in September, on several species of Um- 

 le/lifercd ; they generally occur in companies of rarely less than 

 ten on a plant, sometimes as many as fd'ty ; when very young the 

 larvffi mine the leaves, but wlien more fully grown they come 

 from within the cuticles, and devour the lower half of the leat^ 

 tlie upper portion consequently becomes discolourcnl and turns 

 brown. The larvre spina number of small threads about the ])lant 

 on which they feed, and these threads arc covered with a glutinous 

 secretion which collects in minute globules, reminding one, as Dc 

 Geer expressed it, of a spider's web in a fog. When the larva is 

 full-fed it spins an open network cocoon and changes therein to a 

 pupa. The perfect insect appears towards the end of July and 

 begiiniing of August, and in October; the latter brood is far the 

 most numerous, but the specimens are more retired in habit, 

 and are rarely met with till the spring, after hybernation, and of 

 course in wasted condition. The perfect insects of the summer 

 brood may sometimes be met with Hying on calm evenings, with 

 VOL. rii. 2 H 



