PROF. J. O. WESTWOOD ON THE URANIID#. 5138 
les poussent encore vers cette division. Quant aux premiers états, il y a sans doute du 
pour et du contre, cependant ceux de | Urania rhipheus sont tellement décisits, que 
personne n’a hésité a la rejeter dans les Phalénes.” 
Mr. Packard, in his fine monograph upon the American Geometrideous Moths, goes 
even further than M. Guenée. On account of the structure of the head! in the Ura- 
nides he cannot agree with Guenée in regarding them as a family distinct from the 
Geometride. He adds, “‘ The venation is also much as in the Phalenide” (a group of 
the Geometridz), there being only three median nervules, on which account he regards 
them as forming the highest subfamily of the Phalenide. “Iam aware that the larve 
have sixteen feet, no other Phalenid having more than fourteen”? (Mon. p. 22). 
Mr. Packard, who has devoted six plates and nearly 150 figures to represent the 
venation of the wings of the genera of Geometrideous moths, gives the following as 
the general character of the venation of the family :—‘ Usually six subcostal venules, 
always but three median venules; no submedian vein, sometimes a fold representing it. 
A subcostal cell often present, sometimes two, the cell being formed almost invariably 
by the anastomosis of the first subcostal venule with its vein. Independent vein well 
marked, usually in the middle of the discal space” (p. 16). 
I have copied from Mr. Packard’s plates one of the most characteristic figures of the 
fore wings of the Geometride (Plate LXXXVI. fig. 7), representing that of Hydria 
undulata, Packard (pl. i. fig. 14), in which we see two small prediscoidal cells distinct 
from the costal vein, the upper discoidal vein (B5*) arising at a distance beyond the 
discoidal cell from what I consider as normally constituting the basal portion of the 
branch B2 or more probably of B3. In the fore wing of Humacaria brunnearia, 
Packard (pl. ii. fig. 7), we see only a single small prediscoidal cell, the first branch of 
the subcostal vein uniting with the costal vein near its extremity, whilst the upper 
discoidal vein (B5«*) extends backwards so as to form the upper extremity of the 
discoidal cell, the basal portion of the upper discoidal vein being the upper discocellular 
veinlet of E. Doubleday, and the lower discoidal vein (c3«) arising halfway between 
the branch B5« and c3 from an oblique veinlet, the upper part of which forms the 
middle discocellular veinlet of E. Doubleday, and the lower part being his lower dis- 
cocellular veinlet. 
On looking over Mr. Packard’s numerous figures of the veining of the wings, we see 
? The following are the characters of the head of Cydimon leilus (which, following Guenée, Mr. Packard has 
introduced at the end of the Geometride) given by the last-named writer :— 
“ Cydimon leilus (pl. yi. f. 25’). The occiput and epicranium are small and narrow, the antenne being in- 
serted on the summit of the head ; the epicranium is very small, the basal joints of the antenne being large 
and near together. The clypeus occupies the entire front, being much longer than broad, narrow, the sides 
parallel, not narrowing in front, and the surface flush with the eyes; the front edge is slightly arcuate, being 
slightly produced in the middle of the edges, with lateral foramina distinct. Mandibles rather long, incurved, 
and with the usual dense golden sete lying over the base of the maxille. Labrum small, narrow. Maxillie 
well developed.” 
