()C PLUTKT.LTD.?;. 



a. Antennas thickened witli scales, towards the base. 1. Eidopiiasia. 

 a a. Antennpe not thickened with scales, towards the base. 

 b. Posterior wings with moderate cilia. 



c. Posterior wings rather narrow. 3. Plutella. 

 c c. Posterior wings rather broad. 3. Cerostoma. 

 b b. Posterior wings with long cilia. 4. Tiieuistis. 



Genns I. EIDOPHASIA. fC-^.^'^^' 



Eidopiiasia, Step. Entom. 418 {Add. et Corrhj. 1842). Parasemia, 

 Step. Ent. 202. 



Caput hirsutum. Antennre sujn'a basim squamis incrassatce, coeterani 

 crenato-dentatse, articulis subelongatis. llanstellum breve, squama- 

 tum. Palpi maxillarcs nuUi. Palpi labiales tenues, articulo sc- 

 cundo infra in fasciculum tenuem producto, tertio aculeiformi. Aire 

 oblonijfp, mediocriter cilialac;, upice ohtuso. Alse anteriores : vena 

 apicalis simplex ante apicera exit, infra earn rami sex, quorum in- 

 iimus cum pcnultimo non coalescit ; cellula secundaria bene indicata: 

 vena subilorsalis longe furcata ; ala; postcriores : cellula costalis clon- 

 gata ; vena subcostalis simplex supra apiccm exit, cum scquente non 

 coalescit ; vena mediana trifida. 



Head rough. Antennae tJuckened with scales to?oards the base, the 

 remainder almost dentate, with rather elongate joints. Tongue short, 

 clothed with scales. INIaxillary palpi undeveloped. Labial palpi slen- 

 der, with the second joint produced beneath in a slender tuft ; third 

 joint acuminate. Wings oblong, with moderate cilia ; the apex obtuse. 

 In the anterior wings the simple apical vein runs into the costa before 

 the apex ; below it six veins run into the hinder margin, of which the 

 lowermost is not united with the penultimate ; the secondary cell is 

 well indicated ; the stibdorsal vein is forked for a considerable length. 

 Tn the posterior wings the costal cell is elongate, the simple subcostal 

 vein runs into the costa before the apex, and is not united with the fol- 

 lowing ; the median vein is trifid. 



Only one species is yet known in tins genus, find of the habits 

 of that but little has been observed ; according to Mr. Sirconi's 

 remarks, it flies in woods among oaks at dusk, keeping very near 

 the ground. 



1. Messiiigiella, E. v. E. 193. pi. 68. f. 3 {\>^Z^S).—transwrseUa, 

 il-i Step, (bjutoni.) Alis auticis fuscis, fascia fere recta costara versus at- 

 toiiuata, dilute lutea, macula costal pone medium, fere obsoleta, pallida. 

 Exp. al. T) lin. 



Head and face ochreous-fuscous. Palpi fuscous; terminal joint 

 paler. Aiiteiiii;e fuscous. Anterior wings fuscous, with a nearly straight 

 pale yellow fascia, almost in the middle, attenuated on tlie costa, where 

 it is rather nearer to the base ; a small nearly obsolete pale spot lies on 

 the costa beyond the middle; cilia pale fuscous. Posterior wings grey- 



■Ck-C- 



