ZELLERIA. 191 
Genus III. OCNEROSTOMA. 
Ocnerostoma, Zell. L. E. ii, 298 (1847). Argyresthia p., Zell. Isis, 
1839. 
Caput comosum, epistomio levi. Antenne alis anterioribus breviores, 
setaceee, articulo basali crassiusculo. Haustellum brevissimum. Palpi 
brevissimi, bulbilliformes, Ale anteriores acuminate, posteriores lan- 
ceolate: ; anteriores: cellula discoidalis acufninata, postice imperfecta, 
venas guingue emittente; subdorsalis simplex; posteriores: vena 
infra apicalem fwrcata ; mediana fureata. 
Head rough; the face smooth. Antenne: shorter than the anterior 
wings, setaceous; the basal joint rather thick. Tongue hardly per- 
ceptible. Palpi very short, bulbilliform. Anterior wings acuminate ; 
posterior wings lanceolate. In the anterior wings the acuminate dis- 
coidal cell is posteriorly imperfect and emits five veins; the subdorsal 
vein is simple; in the posterior wings there is a furcate vein below the 
apical vein and the median vein is furcate. 
Only one species is known in this genus; it appears in early 
spring and again in summer, but it is doubtful whether it be 
double-brooded, the spring specimens having probably hyber- 
nated ; it reposes appressed to the surface on which it rests. 
1. piniariella, Zell. L. B. ii. 299 (1847) ; Sta.—argentelia, Zell.; 
Lienig.—galactitella, Eivers.? Alis anticis nitidis, argenteo-griseis ; 
capillis griseis; antennis totis fuscis. Bxp. al. 5% lin. 
Head pale grey. Face and palpi dark grey. Antenne unicolorous 
fuscous. Anterior wings unicolorous, shining silvery-grey, with paler 
cilia. Posterior wings pale grey, with paler cilia. 
Common among fir-trees in April, June, and July. 
Genus IV. ZELLERIA. 
ZELLERIA, Sta. Cat. p. 22 (1849). 
Capilli hirsuti, epistomio levigato. Ocelli nulli. Antenne alis an- 
terioribus breviores, crassiusculee. Haustellum nudum. Palpi la- 
biales porrecti, vel fere adscendentes, breviusculi, sguamis incrassati, 
_articulo tertio obtuso. Ale longe ciliate, anteriores subfaleate, pos- 
teriores lanceolatee; anteriores: vena apicalis simplex ante apicem 
exit, infra eam venee quinque, quarum penultima et antepenultima 
ex eodem puncto prodeunt ; subdorsalis simplex: submediane apex 
inerassatus ; posteriores: vena apicalis longe furcata supra et infra 
apicem exit; mediana trifida. 
Head rough; the face smooth. Ocelli none. Antenne shorter than 
the anterior wings, rather thick, Tongue naked. Labial palpi por- 
* 
ae a, 
