— 99 — 



The luiiiie of ail aulbor in Ijrackfls following a dcst riplioii, 

 indicates that we have not seen the form described in nature ; but 

 have conipiletl the description from that of the author named. 



l'reoccu|)ied names are marketl tlius : — || 



Class: Insecta; ()rtkr: Lepidoptera ; Subonkr: Lepidoptera- 



Heterocera ; Superfamily : Bombyces. 



.Sr//<>/>s/s of Fai/ii/iis. 



Secoiulaiies with a freiuiliiiu. 



X'ein I (internal) of primaries free, unbranched. 



Median vein of primaries 4-branched, rarely only 2-or 3-bninclicd from the 

 absence of some of the median venules. 

 Primaries with one internal vein. 

 \'ein 8 of secondaries wanting (present in one genus) Euchromildse. 



Vein 8 of secondaries arising from the subcostal at, or beyond one third 

 the length of cell from base (absent in 4 genera). 



Ocelli absent Lithosiida;. 



Ocelli present Arctiidfe. 



Vein S of secondaries arising from, or near base of wing. 



Median vein of secondaries 3-branclied Agaristidfe. 



Median vein of secondaries 4-branched. 

 Secondaries with two internal veins. 



Thorax slender, in witlth less than '/,., the length of fore 



wing Pericopida;. 



Thorax robust, more than '/,-, of fore wing . Liparida;. 



Secondaries with one internal vein Drepanulida;. 



Primaries with two internal veins. 



Vein 8 of secondaries absent Pyromorphlda. 



Vein 8 present. 



Antennre of (;^' pectinateil for the basal two thirds, or 



simple Limacodida'. 



.\ntenn;\; of rj pectinated to the tip Lagoida;. 



Median vein of primaries 3-branched. 



N'ein 8 of secondaries straight ; veins 3 and 4 stalked Dioptida;. 



\'ein S of secondaries sinuate ; veins 3 and 4 not stalked. 



Wings entire or excavateil below apex : vein 8 of secondaiio 



free Notodontidit. 



Robust ; forewings roundedly subfalcate ; vein 8 united to ihc 



subscostal by a cross-vein Bombycidce. 



Vein I of primaries sinuate and branched Psychldfie. 



Secondaries without frenulum. 



Secondaries unlike primaries and with less than 12 veins. 

 Primaries with one internal vein. 



Median vein 3-branchetl, vein 2 arising about middle of cell. 

 Antenn;\: of r^'' pectinated to the tip. 



Size medium ; antemuv singly bipectinated ; secondaries with 



one internal vein Lacosomldar. 



