1900. j GROTE—THE DESCENT OF THE PIERIDS. 15 
Hind wings with two anal veins............... HESPERIADES. 
Radius of fore wings 3 to5 branched; first radial branch 
fromeapove: cell: 4Z2 uradialls... acaws os he ow 0 PIERIDIDA. 
Radius of fore wings 5 branched ; all radial branches arising 
beyond cell; 472 central or cubital... . DISMORPHIADA. 
Discal cells not reduced; the cross-vein concave ; J/2 
cubital’ on fore Wings.!.05. 0! ede te Dismorphiane. 
Discal cells reduced; the cross-vein convex; J/2 cen- 
PRAM ONELOTE. WINGS af Bia alae ates whee. ale Sarde Leptidiane. 
Hind wings with three anal veins.............. PSEUDOPONTIAD&. 
Family DisMoRPHIAD&. 
Wings entire; fore wings with the radius 5 branched, all the 
short branchlets arising equidistantly beyond the cell. Cells 
closed ; middle branch of the median series central or cubital. I 
find only doubtful traces of the fork to second anal vein of prima- 
ries at base. In the Dismorphianz the male primary is narrow ; 
hind wings sometimes much enlarged inferiorly ; no trace of costal 
cell; middle branch of median series cubital ; two anal veins. 
Subfamily ZLeptidiane Grote, 1897. 
Wings entire, elongate, proportionate. Middle branch of median 
series central on primaries, cubital on hind wings. Cells closed, 
reduced to basal third of wings ; cross-vein outwardly convex. No 
trace of fork to second anal on primaries. Secondaries not 
enlarged, proportionate. 
Outer margin of fore wings acuminate between first and second 
median branchlets, second and third median propinquitous 
Sub DASE FOI CLOSS-VEIIN. not sis aie oe Sie es oe mys olen w/e zalats. 
Outer margin of fore wings not acuminate ; second and third 
median! branchlets separate at base.........-........ Leptidia. 
Azalats n. g. 
Type: Leucophasia gigantea Leech, Ent., 23, 46, 1890. 
Azalats gigantea. 
A more specialized form than Zeftdia, as shown by the approxi- 
mation of the second and third median branchlets on hind wings, 
the two branches arising close together from the point of convexity 
of the cross-vein. This insect is described and figured in the But 
terflies of China, p. 484, Pl. 36, Figs. 10, 11, 1893. 
