1925 ] Pectinate Aniinnce in the Geometridce ( Lepidoptera ) 107 
Protoboarmia (indicataria) , Parexcelsa (inconspicuaria) , Eu- 
fidonia, Neoalcis (calif or niaria) , Melanolophia, Vinemina ( opa - 
caria), Paraphia, Epimecis, Elphos, Boarmia, ( e . g. rhomboidaria) , 
Amraica. In Amraica the antenna is unipectinate, with a super- 
ficial likeness to Arichanna. The others form a homogeneous 
group. 
2. Pectinations very short, gradually running out to base 
and apex, slender, central on segments, not clubbed, with long 
sparse bristles, the apical one not distinct; segments lightly 
chitinized, with fine striations, transverse on outer part of seg- 
ments, as in Melanolophia. 
Bapta (?) virginalis. The remaining Baptas have simple 
antennae, and resemble Cabera (Deilinea). This species has no 
likeness to Cabera and has no visible connection with any other. 
3. Pectinations more or less clubbed, with a terminal tuft 
of long curved setae, burying the single short apical or sub-apical 
seta of type 2. Body stout, mouth parts normally reduced; 
sculpture normally not unlike group 1, which also has a similar 
pupa. 
Biston ( ursaria ), Amphidasys ( cognataria , robusta), Erannis 
(segments sometimes 4-pectinate, sometimes merely serrate), 
Artiora ( Therapis ), Coniodes, Cochisea. This is a homogeneous 
group. Artiora has usually been widely separated from Erannis 
but hardly differs save in wing-form. 
4. Pectinations with at least two strong setae of type 2, 
which are typically apical and strongly divergent; and are fre- 
quently supplemented by one or more such setae on the outer 
sides of the pectinations. A miscellaneous group, held together 
mainly by the survival of a primitive condition. 
a. Three nearly apical setae of type 2. 
Prosopolopha. 
B. A DORSAL SETA (OR MORE) ON PECTINATIONS. 
Euchlcena (including irraria), Lytrosis, Stenotrachelys, An- 
ger ona ( prunaria , cexaria), Xanthotype , Metarrhanthis, Cepphis 
( Priocycla ) . 
