zn.ir.HiA. llU 



ficnus 111. OCNEROSTOMA. ^H-Vl. ^' 



OcNKiiosTOMA, Zcll. L. E. ii. 2'JS (ISl?). JrgijreHlhla p., Zell. Isis, 

 1839. 



Caput comosnin, opistomio Irevi. Antenna; alis anterioribus brcviores, 

 sdacctf, articulo Ijasali crassiusculo. llaustcUuni brcvissiniuin. Palpi 

 Orevhsiiui, bidbiHiformes. AUc auieriores acurniuat:v, postcriorcs lau- 

 ceolata^; antcriorcs : ccUula tliscoidalis acuminata, posticc iniperfcc'ta, 

 vcnas quinqne cmlttcntc ; subdorsalis simplex ; postcriorcs : vena 

 infra apicaIem/«/'ea/fl; mcdiaiui furcata. 



Head rough ; the face smooth. Antenna; shorter than the anterior 

 wings, setaceous; the basal joint rather thick. Tongue hardly per- 

 ceptible. Palpi tYvv/ sJiort, hidhllVifonii. 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 wfurcale vein below the 

 apical vein and the median vein is furcate. 



Only one species is known in this genus; it appears in early 

 spring aiul again in summer, but it is doubtful whether it be 

 double-brooded, the spring specinieus having ])robably liyber- 

 uated; it reposes appressed to the surface on which it rests. 



1. piniariella, Zcll. L. E. ii. 29'J (184-7) ; ^hx.—argcntdla, Zell.; 

 Lienig. — ijulad'ddla, Evers.? Alis anticis nitidis, argenteo-griscis ; \^_ \^ 

 cajjillis griseis ; antennis totis fuscis. Exp. al. 51 lin. _^ 



Head pale grey. Eaco and palpi dark grey. Antenn;e unicolorous ^^ 

 fuscous. Anterior wings unicolorous, shining silvery-grey, with paler 

 cilia. I'osterior wings pale grey, with paler cilia. 



Commou among iir-trees in April, June, aiul July. 



Genus IV. ZELLBRIA. 'H • H • 1^ 



a-c 



Zkllekia, Sta. Cat. p. 22 (1810). 



Capilli hirsuti, cpistomio liKvigato. Ocelli mdli. Antcniuc alis an- 

 tcrioi-ibus breviores, crassinscuhc. llaustellum nudum. Palpi la- 

 bialcs porrccti, vel fere adsccndentcs, hrevliiscidi, squamis bicrasmti, 

 artlcido tertio ohlmo. Ahu longc ciliatsc, antcriorcs subfalcaUe, pos- 

 tcriorcs lanccolattc ; antcriorcs : vena apicalis simplex ante apicem 

 exit, infra cam ven;x! quinque, (punann pcnultinui ct antepenultima 

 ex eodcm puucto prodeunt ; subdorsalis simplex : submcdiame apex 

 incrassatus ; postcriorcs : vena ajjicalis longc furcata supra et infra 

 apicem exit ; mediana trifida. 

 Head rough; the face smooth. Ocelli none. Antenna; shorter than 



the anterior wings, rather thick. Tongue naked. Labial palpi por- 



