JOURNAL OF ENTOMOLOGY AND ZOOLOGY 101 
Nearest in wing form and pattern to Semioscopis megami- 
crella Dyar, but smaller, much darker and suffused in its mark- 
ing and without the well marked terminal row of black dots. 
Hypoplesia dietziella new species 
Tongue and maxillary palpi obsolete. Labial palpi rather 
long curved ascending; second joint with well developed brush 
on the underside and with several long black bristles along the 
upper edge; terminal joint shorter than second, bluntly pointed ; 
blackish fuscous with extreme tip of the third joint yellowish. 
Antenne nearly as long as the forewings, stout, with short 
whorls of raised scales, less so in the females; basal joint with 
pecten yellowish fuscous, lighter toward the tip. Face and head 
rough with long, erect dark fuscous hair scales. Thorax dark 
fuscous. Patagina tipped with yellow. Forewings dark fuscous 
mottled with black and yellow in indistinct and transverse 
striation; the black scales are slightly raised and most promi- 
nent; along the costal edge is a series of small black dots and 
at the end of the cell is a larger ill-defined black spot; around 
the entire edge from the middle of costa to tornus is a series of 
small yellowish dashes also present in the otherwise dark fus- 
cous cilia. Hindwings shining dark fuscous. Abdomen dark 
fuscous. Legs black with yellowish annulations. Hindlegs 
rather long with the tibie hairy. 
Alar expanse: 16-20 mm. 
Habitat—San Diego, California, June, July. W. 8S. Wright, 
coll. 
U.S. N. M. Type No. 15,614. 
I take pleasure in associating the name of my friend and col- 
league, Dr. Wm. Dietz, with this interesting species, the second 
one known in the genus originally characterized by him under 
the preoccupied name, Paraplesia. (Trans. Am. Ent. Soe. 
XXXI, p. 12, 1905) —Hypoplesia (Busck, Proc. U. S. Nat. Mus. 
XXX, p. 735, 1906.) 
The original description is rather scanty and partly incor- 
rect; the antenne are not bipectenate, but are thickened with 
whorls of raised scales. Their length and the absence of tongue 
