222 HETEROCERA. 
ZANOLA. 
Zanola, Walker, Cat. v. p. 1173. 
This genus was founded by Walker upon a single species, Z. difficilis, from Vene- 
zuela; its author stating that “‘Zanola, Ennomos, and some other genera of Geometride 
appeared to connect the Drepanulide with the Geometride.” 
A closely allied form occurs in Mexico. 
1. Zanola harpis, sp.n. (Tab. XXIII. fig. 18.) 
Primaries light chestnut-brown, crossed by three narrow waved black lines which are edged on their inner 
sides with a pinkish line (the first black line is close to the base, the second beyond the middle, and the 
third submarginal and almost in the form of a series of lunate markings), and between the first and 
second black lines is a wide silvery-brown band crossing from the costal margin (where it is widest) to 
the inner margin, this band running off to a point ; secondaries light brown, palest from the apex to the 
anal angle, and with a narrow almost central dark brown band, shaded on each side with pinkish-brown, 
crossing from the costal margin near the apex to the inner margin above the anal angle; the fringe of 
both wings pale whitish-brown; the underside of the primaries pale brown, shaded along the costal 
margin with darker brown, and crossed from the costal margin near the apex to the inner margin close to 
the anal angle by two indistinct dark brownish bands; the underside of the secondaries pale pinkish- 
brown, crossed in the middle by a wide brown band and nearer the outer margin by a narrow waved black 
line, and with a dark brown patch close to the anal angle: head and thorax dark brown, the abdomen 
lighter ; antenne, palpi, and legs brown. Expanse 2 inches. 
Hab. Mexico, Cordova (Hége). 
This species is allied to Z. difficilis, Walk., but differs considerably in colour and 
in the position of the bands crossing the primaries. 
TARCHON. 
Mesotages, Felder, Reise Nov. Lep. t. 95. f. 10 (2), Erkl. der Taf. 75 bis 107, p. 6 (1874) (nomen 
preeoc.). 
This genus was adopted by Felder for the reception of the South-American Mimallo 
trilunula, Herr.-Schaff. A closely-allied species from the State of Panama is here 
described. Felder’s name having been long preoccupied in Hymenoptera (Forster, 
1862), I have been obliged to change it. 
1. Tarchon felderi, sp.n. (Tab. XXIII. figg. 19 3, 209.) 
Male, Primaries deep chestnut-brown, palest along the outer margin from the apex to the anal angle, a spot 
at the end of the cell, one beyond, near the apex, and one at the anal angle pale yellowish-brown, a 
silvery-white streak beyond the middle on the inner margin ; secondaries uniform brownish-black, slightly 
reddish along the outer margin; the underside of the primaries and secondaries uniform brownish-black, 
the former with a pale streak at the apex, the latter with a central waved pale line and a small white dot 
on the inner margin about the middle: head, thorax, and abdomen dark brownish-black, slightly reddish 
beneath ; antenne black ; palpi black above, reddish-brown beneath ; legs pale brown. Female. Primaries 
pale chestnut-brown, crossed just beyond the end of the cell by a series of elongated silvery-white spots, 
these spots forming a broken line from the costal margin to the inner margin, and beyond this line by two 
bands of lunular marks, the second being submarginal, the spots at the end of the cell as in the male; 
secondaries uniform brownish-black, but not so dark as in the male, broadly marked with lighter colour 
at the anal angle; the underside of the primaries from the base nearly to the middle (excepting the 
