66 PLUTELLID®. 
a. Antenne thickened with scales, towards the base. 1. H1DOPHASTIA. 
aa. Antenne not thickened with scales, towards the base. 
b. Posterior wings with moderate cilia. 
c. Posterior wings rather narrow. 2, PLUTELLA. 
cc. Posterior wings rather broad. 3. Crrostoma. 
4 b. Posterior wings with long cilia. 4. THuristIs. 
Genus I. EIDOPHASIA. 
Expornasta, Step. Entom. 418 (ddd. et Corrig. 1842). Parasemia, 
Step. Ent. 202. 
Caput hirsutum. Antenne supra basim squamis incrassate, ceterum 
crenato-dentate, articulis subelongatis. Haustellum breve, squama- 
tum. Palpi maxillares nulli. Palpi labiales tenues, articulo se- 
cundo infra in fasciculum tenuem producto, tertio aculeiformi. Alee 
oblonga, mediocriter ciliate, apice obtuso. Ale anteriores: vena 
apicalis simplex ante apicem exit, infra eam rami sex, quorum in- 
fimus cum penultimo non coalescit ; cellula secundaria bene indicata: 
vena subdorsalis longe furcata ; ale posteriores : cellula costalis elon- 
gata; vena subcostalis simplex supra apicem exit, cum sequente non 
coalescit ; vena mediana trifida. 
Head rough. Antenne thickened with scales towards the base, the 
remainder almost dentate, with rather elongate joints. Tongue short, 
clothed with scales. Maxillary 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 apew obtuse. 
Tn 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 subdorsal vein is forked for a considerable length. 
In 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 this genus, and of the habits 
of that but little has sell observed; according to Mr. Sircom’s 
remarks, it flies in woods among oaks at dusk, keeping very near 
the ground, 
1. Messingiella, F. v. R. 193. pl. 68. f. 3 (1839).—transversella, 
Step. (Entom.) Alis anticis fuscis, fascia fere recta costam versus at- 
tenuata, dilute lutea, macula coste pone medium, fere obsoleta, pallida. 
Exp. al. 6 lin. 
Head and face ochreous-fuscous. Palpi fuscous; terminal joint 
paler. Antenne fuscous. Anterior wings fuscous, with a nearly straight 
pale yellow fascia, almost in the middle, attenuated on the 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- 
