I'l.F.ruOTA. 151 



apex ; the first branch ol' the iiicdiaii vein is hVkjIiIIij cnrvcd ; the suh- 

 ine(h"aii is remote IVoni tlic median ; the subdorsal vein is furcate. 



This genus has only one representative in tliis country, which 

 is found commonly on heaths in June and Jidy. Nothing is 

 known of its primary states. 



1. bicostella, Linn. K S. \V.\% (1701); Sco]). ; Iliib. Tin. 115 ; ^~\r 

 Haw.; Treit. ; Dup. ; Step.; Curt. — munjuwlla, Fab. — vidnclla, Scop.? 

 Alis anticis allns, grisco-fusco valde snll'usis, ])nccipue dorsum versus, J_ ' 

 stria (juxta costam albam non sufl'usam) a basi usipie ad apiccm 

 f'usca, punctis duobus disci, uno ante, altero pone medium nii^'ris. Kxp. 

 al. 10-11 lin. 



Head and face white, mixed with grey. l*alpi greyish-white; ter- 

 minal joint white, with the base and apex grey. Antennre dark fus- 

 cous. Anterior wings wliite, nuich dusted with greyish-fuscous, espe- 

 cially towards the inner margin ; the eosta alone remaining narrowly 

 ])ure white ; inunediately below it is a fuscous streak from the base to 

 the apex; beneath it arc two black s})ots on the disc, one Ijeforc and 

 the other beyond the middle ; under the first is a small dark fuscous 

 spot on the fold, and under the second a fuscous cloud ; tlu; hinder 

 margin is spotted with dark fuscous; cilia gre}ish-wlute. Posterior 

 wings pale greyish-fuscous, with paler cilia. 



Common througliout the country on heaths, from the end of 

 May to the middle of July. 



Genus XVIII. HARPELLA. ^^^ Z 



ILuiPELLA, Schr. F. V,. ii. 1G8 (1802) ; Zell. Alahonm, Step. FmI- 

 costoma, Dup. Alabonla p.. Hid). Ju'curvaria p.. Haw. ytJcIa \^., 

 Treit. 



Capilli deprcssi, postico subcrccti ; frons lata. Ocelli nulli. Antennae 

 lennes, corpore non brcviores, ^ ciliattc. Palpi labialcs longi com- 

 pressi, articulo sccundo parum curvato, pilis ai)prcssis, tcrtio tenui 

 adscendente acuto. Haustcllum breve, sc|uamatuni. Ahc anteriores 

 obloiiga), posteriores oblongo-ovatic mcdiocriter ciliata^ ; anteriores : 

 veucc apicaHs ramus inferior in apiccm exit ; cellula secundaria nulla; 

 vena subdorsalis furcata ; subnuidiana a mcdiana distat, in apicc in- 

 crassatur. 



Head smooth, with the scales behind sliglitly erect ; forehead broad. 

 Ocelli none. Auteniuc ■slender, not shorter than the body ; in the (^ 

 ciliated. Labial palpi loi/ff, compressed ; the second joint slightly curved 

 with appressed scales; the third joint slender, (iscend'nif/, pointed. 

 Tongue short, clothed with scales. Anterior wings oblong ; posterior 

 wings oblong-ovate, with moderately long cilia, in the aiUerior wings 

 the lower branch of the apical vein terminates in the apex (in some of 



