Publ. 6. X. 1915. ADELPHA. By H. FRuHSTORFER. 513 
season. One form of the rainless period in January, being somewhat faded beneath, and specimens with more 
pronounced markings, of the rainy months (June, July). Venezuela. —fumida Btlr. is beaten in size by irmina, 
the narrower longitudinal band of the forewings being more acutely angled, too. From Eastern Peru. — wiil- 
helmina Fruhst. Smaller than irmina Dbl. and Hew. from Venezuela, above darker, the ochreous longitudinal 
band more strangulated on both the surfaces, considerably narrower. Under surface: forewing with larger 
white spots. Hindwing with much narrower white maculae. Oblique band of the forewing darker, more narrowly 
confined. Hindwing in the subanal region lighter, more spotted in yellow. Bolivia. Clasping organs of the 
habitus of A. alala, entirely different from the groups of A. isis and A. erotia. Valve remarkably short with 
2 or 3 exterior teeth, but without any ventral ones. Clunicula high, narrow. Uncus plain. Point of penis not 
sharply bent upwards, but nearly straight. 
A. irma inhabits Peru and Bolivia as irma Fruhst. (108 ¢). Upper surface similar to boreas Bilr. and 
irmina Dbl., the ochreous oblique band, however, proximally more widening and the distal spot at the anterior 
median nearly isolated. Under surface: band of the forewing steeper than in boreas. Hindwing more roundish, 
with 3 whitish-violet median transverse bands, the outer one of which projects the furthest into the wing-centre. 
irma thereby approximates irmina Dbl. from which it is, however, immediately distinguishable by the subdued 
colours of the bands being, besides, also narrower. Peru: Pozuzzo, reaching an altitude of 2000 m near Cara- 
baya. — nadja Fruhst. Ochreous band of the forewings more extensive than in irma. Hindwing pierced by a 
magnificent black submarginal band appearing only obsolete in specimens from Peru. Under surface: yellowish 
oblique band of the forewings broader, lighter, all the bands of the hindwings being also more violet and broader 
Bolivia. — Genitals considerably differentiated from those of A. trmina. Valve entirely more slender, without 
any spines, but with very long bristles. Point of penis curved. 
A. boreas. An Andine species and distributed, from Colombia to Bolivia, wpon 4 areal forms; espe- 
cially beneath most variable in the extent of purple or violet parts with metallic lustre. — tizona Fldr. (108 d) 
has two distinct small yellow preapical spots on the forewings. Fassu found the 9 on the Upper Rio Negro, 
the under surface of which is more fallow, the yellow area of the forewings broader, likewise paler. — tizo- 
nides Fruhst. (108 d) beats tizona in size; with roundish hindwings and indistinct reddish-brown apical spots, 
very broad and distally only faintly dentate subapical band of the forewings. Under surface of hindwings 
traversed by a narrow brown postmedian band. West Colombia and Cundinamarca. — opheltes subsp. nov. 
was recently again discovered in Panama from where GopMAN had figured it already as A. tizona. Band of the 
forewings above distally only unnoticeably dentate. Under surface with broader brown postdiscal band than 
tizonides and reduced transcellular stripes. — verenda subsp. nov. (108 c) differs from tizona by darkened and 
proximally deeper incised oblique band of the forewings. The under surface exhibits a narrower transverse 
band of the forewings and more whitish edging of the hindwings. Peru, common, preferring altitudes of 1500 
to 2000 m. — boreas Bilr. equals A. irma (108 c) in size; under surface lacking the violet hue, the oblique 
band of the forewings sharply set off, paler than in verenda. Bolivia, also on the Upper Rio Negro. 
A. ximena Fidr. The most imposing species of the group with ochreous area on the forewings, which 
expands similarly as in A. mesentina (108 e) and from which three subapical maculae extend in the shape of 
a band as far as to the costal margin. Under surface resembling that of tizona Fldr. but without the 
transverse band running through, which is replaced by two rows of roundish light spots. Peru: Pozuzzo, 
not rare. 
A. salmoneus inhabits Central America from Guatemala, and Colombia. We may separate 2 geo- 
graphically split branches. — emilia Fruhst. (108 e), a smaller form with more imposing greyish-violet bands 
than salmoneus (108 e) exhibits. Guatemala to the Cauca Valley. — salmoneus tir. (108 e), a more magnificent 
race with more streak-like bands on the under surface. Kastern Colombia also from Cundinamarca in the Tring 
Museum. 
A. colada Fidr., an extremely rare species of which only the type is known and which I was en- 
abled to examine thanks to the obligingness of the officials in the Tring-Museum. Upper surface about 
similar to that of salmoneus (108 e), while the under surface approaches more boreas Bilr. and still more A. 
irma Fruhst. (108 c). Bogoté (Colombia). 
A. saundersi, the most luxuriant species of the series with brownish-yellow bands. The under surface 
is most imposing with its magnificent reflections of silvery brightness reminding us of Argynnis adippe and 
being unparalleled among the Adelpha. According to WeEKS there is said to be a local race in Colombia with 
white drops on the under surface instead of those of metallic lustre. — saundersi Hew. is described from Ecuador 
and also found in Colombian districts, where Fass took single specimens near Pacho at an altitude of 2200 m. 
— leutha subsp. nov. stays smaller than helepecki (108d) and has a lighter yellow under surface, very much 
reduced reddish-brown longitudinal bands and obsolete silver-spots of the anal part of the hindwings. Peru, 
Cushi from 1820 m. Type in the Tring-Museum. — helepecki Weeks (108 d) is only lying before us from Bolivia. 
The 2 was collected by Fasst near Coroico. It differs from the g only by a more pronounced black spotting 
on the under surface of the hindwings. 
65 
fumida. 
wilhelmina. 
ima. 
nadja. 
tizona. 
tizonides. 
opheltes. 
verenda. 
boreas. 
wimend. 
emilia. 
salmoneus. 
colada. 
saundersi. 
leutha. 
helepecki. 
