72 Mr. E. Meyrick on the classification o 



23. Cataclysme, Hb. 



Face with more or less slightly projecting scales. Palpi moderate, 

 porrected, rough-scaled. Antennse in S' ciliated, sometimes dentate. 

 Thorax glabrous beneath. Posterior tibiaj with all spurs present. 

 Fore wings with areole double, but posterior wall absent between 

 7 and 8. Hind wings with 8 anastomosing with cell from near 

 base to beyond middle. 



A close development of Hydriomena, not at present 

 known to occur outside the European region. 

 virgata, Rott. 

 Hntersecta, Stgr. 

 uniformata, Bell. 

 riguata, Hb. 

 comparata, Stgr. 



24. Hydriomena, Hb. 



Face with more or less slightly projecting or loose scales, or with 

 conical tuft. Palpi moderate, porrected or subascending, rough- 

 scaled. Antennaj in ^ ciliated, rarely dentate or naked. Thorax 

 often crested, glabrous beneath. Abdomen not crested, or with 

 crests on two basal segments only. Posterior tibise with all spurs 

 present. Fore wings with areole double. Hind wings with 8 

 anastomosing with cell from near base to beyond middle. 



A very large genus, principally characteristic of tem- 

 perate regions in both hemispheres. In so large a 

 number of species there is naturally some slight struc- 

 tural variation in most details, but the gradations are so 

 slight that I have not been able to subdivide the genus 

 further ; and, as here restricted, it is not, in fact, so 

 large as to be unmanageable. 



occllata, 1j. pauperaria, Ev. 



simulata, Hb. deyeculata, Ld. 



variata, Schiff. picata, Hb. 



jiiniperata, L. Hudificata, Stgr. 



cupressata, H.-G. miata, L, 



sagittata, F. siterata, Hufn. 



fulvata, Forst. sordidata, F. 



dotata, L. trifasciata, Bkh. 



Fixseni, Brem. literata, Don. 



agues, Butl. {=festinaria, truncata, Hufn. 



Christ.). immanata, Hw. (prob, 



Daniloci, Ersch. =pr{ec.). 



