171 
Genus PRocHALtIA gen. nov. (Type Prochalia pygmaea sp. nov.). 
Antennae of ¢ bipectinate; fore tibiae with long 
spine; primaries 12 veined, 1b anastomosing with Ic 
but without branch to inner margin, veins 2-6 well 
separated, 7 and 8 stalked, 9 and 10 from around upper 
angle of cell, 11 from near middle of cell; secondaries 
8 veined, 4 and 5 from a point, 7 and 8 not joined by 
a crossbar. 
The genus falls in Hampson’s Subfamily 
Chaliinae in lacking the branch of vein 1b to 
inner margin; characteristic is the stalking of 
Fig. 3.  Venation of ; ‘ 1 ; 
Gane pes hei veins 7 and 8 of primaries, 9 being free. 
PROCHALIA PYGMAEA sp. nov. (Pl. III, Fig. 5). 
6. Head, thorax, abdomen and wings uniform black-brown, much as 
in M. nigrita B. & McD. Abdomen extending slightly beyond margin of 
secondaries. Expanse 12.5 mm. 
Hapitat. Everglade, Fla. (May 1-7). 1 @. Type, Coll. Barnes. 
The sacks are narrow, cylindrical tubes of silk 12 mm. long, 
mixed with excrement and more or less covered with small pieces of 
lichen. They were not rare on the trunks of orange trees, feeding 
doubtless on the lichens which covered the bark; only one specimen 
was, however, successfully reared, this emerging after leaving Ever- 
glade. It is probably this species referred to by Hylaerts, (Bull. Soc. 
Ent. Belg., 1884, p. 209), as an unknown sack from Florida. 
COCHLIDIIDAE 
PROLIMACODES SCAPHA ARGENTIMACULA subsp. nov. (PI. II, Fig. 2). 
Differs from typical scapha in having the silvery line from apex of 
wing closer to outer margin and the basal angle of same filled with silvery white, 
nearly as in trigona H. Edw. 
Hasitat. Ft. Myers, Fla. (Apr. 16-23, May 1-7). 6 6. Type, Coll. 
Barnes. 
This constant form seems worthy of a varietal name; it probably 
represents a geographical race. 
