NEOPHASIA; EUCHEIRA; TATOCHILA. Bv J. Robek. 55 



]. Genus: Ei'eo|>]ia!!»ia -/W/c. 



This genus is nearly allied to the Palaearetic Aporia Illni. It ditfers principally in the direction of 

 the precostal, which is not straight, but curved slightly inwards, the longer and slenderer palpi and the 

 more distinctly clubbed anteiniae. The costal of the forewing only extends a little beyond the middle of 

 the costal margin, the subcostal is four-branched with two branches before the closing nervure of the 

 median cell, the third and faurth branches form a short fork and the third runs to the apex. The upper 

 radial is coincident with the subcostal abuost to one-half, hence the upper discocellular is wanting. The 

 middle and lower discocellulars are about equal in length, the former is curved inwards, the latter is straight 

 and closes the middle cell, joining the third median*) in an acute angle at its bend. The middle cell of 

 the fore- as well as of the hindwing is rather narrow. The upper and middle discocellulars of the hindwing 

 are about equal in length, and form together an almost straight line, the lower discocellular is longer, weaker, 

 and meets the third median vein at the bend. Two purely North American species lielong to this genus- 



N. menapia h'klr. (— tau Scuddcr, ninonia />.) (18 a) is white above and beneath, thinly scaled, I'lfnapla 

 therefore somewhat transparent , the forewing has black markings at the apex and the anterior part of the 

 distal margin, with white subapical spots, the costal margin is broadly black to the apex of the cell, also 

 the discocellulars, the rest of the costal margin narrowly black. Hindwing almost without markings. On 

 the similarly marked under surface of the forewing the black markings are paler, the veins of the dirty- 

 white hindwing are black, there is also a submarginal band of the same colour. The ? has on the upperside 

 paler black markings, some submarginal markings, and sometimes on the underside small red spots at the 

 distal margin of the hindwing. — Egg tlask-shaped, tinted at the sides. Full-growii larva about 25 mm. 

 (1 inchj long, head cylindrical, abdomen terminating in two short tails, dark green with a broad white band 

 at each side and a narrow white band on the back, abdominal legs black, thoracic legs greenish yellow. 

 Pu{)a dark green, striped with white, similar to the Oy/«s-pu]iae, but somewhat more slender. Larva on 

 various conifers, sometimes so abundant as to cause considerable damage. In the north-west of the United States. 



N. terlooii Brhr (= epyaxa Fu/Imi/, Archonias lyceas tikinner) (18a) is very similar in pattern to terlooii. 

 iticiKipiii, but the black markings are more extended; the cf has white, the ? red-brown ground-colour. The 

 larva lives in a common web on Arbutus. California. — princetonia Fo/iiif/, from Illinois, is probably /"'"'"'''o/Ha. 

 only a form of terlooii. In the (f both sides of the hindwing are sprinkled with jjale red at the margin, 

 the ¥ is deeper red beneath than above , and the veins are more broadly edged with black than in the ? 

 of uiniajiid. — From lack of material I have not been able to decide with cortainty whether this species 

 belongs to this genus, but the agreement of the markings with meiMjiin suggests a Neophasin. 



2. Genus: Suclieira Westw. 



Although this genus differs essentially from the preceding in the neuration , yet it is closely aUied 

 to it in the life-history of the larva. The larvae live gregariously in a web , go out at night in a proces- 

 sion to feed, and pupate in the web with the head downwards. The subcostal of the forewing is entirely 

 free, hence the cell is closed by three discocellulai's. The cell is very narrow and long. Only one species. 



E. SOCialis Wcatic (18a), from Mexico, is a sniokj' grey butterfly with a white central macular band; socialis. 

 the (f has in addition more distinct white submarginal spots on the upper and under surface of both wings. 



3. Genus: Tatochila Btlr. 



This genus is almost confined to the southern part of South America and is closely allied to the 

 following genus, I'inia; it differs from this in the shorter middle discocellular and the almost straight lower 

 discocellular of the forewing, but princij)ally in the unifoim character of the markings. The species of this 

 genus ajjpear to occur only in one generation. The butterflies fly from November to April. 



T. volxemi Capr. (;= achamantis Bey<j) (18 a). Upper and under surface of the cf white with a volxemi. 

 large black spot on the discocellulars of the forewing and slight blackish markings at the apex of the fore- 

 wing above and beneath, d" similar to the ? of theodlcc BI., but the marginal markings somewhat narrower, 

 the submarginal markings on the confi'ary somewhat broader, also a black stripe in the cell of the hind- 

 wing. — Argentina. 



*) What the author calls tlie ..tliinl median" is really the third radial, there beiiifj- three radial and two median branches 

 in the butterfly-wing. — Transl. 



