ACOLOITHUS; PYCNOCTENA. By Dr. K. Jordan. 
25 
25. X. 1913. 
in cone-shape. Forewing with 11 veins, all free, or subcostals 2 and 3 stalked; in the hindwing the connect¬ 
ing vein between the costal and subcostal short. Foretibia with spur and apical thorn. 
T. smithsonianus Clem. (9 e). Black, with slight greenish blue gloss; forewing dull dark bluish green, smithsoni- 
hindwing more blue, both wings slightly transparent, with blue fringes. Tongue quite small, yellowish white; anUfi - 
legs short. Length of forewing 6 to 9 mm. — New Mexico, Colorado, Arizona. — Larva described in detail 
by Dyar in Proc. Ent. Soc. Wash. 5, p. 33 (1902). When fullgrown, with broad black dorsal stripe edged 
with white, below which is a pale red line, further down a white-edged black line, a pale red one and a 
black stripe with a broad white lower edge, and a black subventral line. Cocoon opaque, white, in the ground 
or among leaves. Food-plant: Allionia nyctaginea. 
T. yampai Barn. Not known to me in nature. Appears to resemble Seryda cincta in colouring. Accord- yampai. 
ing to kind communication from Dr. McDunnough the frons is similar to that of smithsonianus, but not 
quite so strongly produced. In the forewing 11 veins (not 12 as in Seryda), the two middle subcostal branch¬ 
es (2 and 4, 3 absent) from a point or on a short stalk. Black, collar on the upperside and the abdomen 
(with the exception of the tip and a broad ventral stripe) red. — Arizona. 
8. Genus: Acoloftliiis Clem. 
Frons slightly convex, not produced as in the preceding species. Tongue wel 1 developed. Forewing 
with 11 veins, all free, or subcostal 4 and radial 1, or radial 3 and median 1, on a very short stalk, in 
the hindwing 7 veins', connecting vein of costal and subcostal long. 
A. falsarius Clem. ( — ruficollis Druce ) (9 e). Black, with purplish blue sheen. Collar orange-red, inter- falsarius. 
rupted in the middle. Wings brownish black, forewing dull purple-blue, hindwing semitransparent. Tongue 
pale yellow. Length of forewing 6 to 7 mm. — Atlantic States of the U. S. A. southward to Mexico. — 
Larva on vine, sometimes injurious, when fullgrown 8 or 9 mm in length. Pale olive, green or reddish, with 
5 interrupted longitudinal lines, the upper two warts dark, the third pale with the exception of segment 6. 
Hibernates as pupa. 
A. novarius Barn, and McDun. Like the preceding, but the collar uniformly yellow, not interrupted, novarius. 
and complete also on the underside. Head and legs paler than in falsarius, eyes much larger, frons correspond¬ 
ingly narrower, evenly convex and distinctly narrowed anteriorly. —- Texas. 
A. rectarius Dyar (9 e). Entirely greenish black, cross-veins of the hindwing oblique and not angulate rectarius. 
in the only specimen before me — Arizona. 
A. opacus spec. nov. (9 e). §: Body dull blackish green. Antenna slightly incrassate distally, pectina- opacus. 
tions short, the longest scarcely as long as the diameter of the shaft. Foretibia with spur. Forewing above 
dull purplish black, hindwing greenish blue, almost without gloss, underside of both wings faintly purplish. 
In the forewing all veins free, median 1 near the angle of the cell, median 2 far proximal, in the hindwing 
the upper and lower angles of the cell at the same level, as the apical (concave) angle of the cell is equilateral. 
Length of forewing 9 mm. — 1 $ from the Bio Aguaca Valley, West Colombia, collected by A. H. Fassl at 
an altitude of about 2000 m. 
A. isochrous spec. nov. (= pusilla Druce, nec Wkr., err. determ.). Body, underside of both wings, isochrons. 
upperside of forewing and part of the tibiae metallic green, abdomen with coppery sheen, especially beneath. 
Upperside of hindwing purplish black. Underside of both wings opalescent. In the forewing radial 3 and 
median 1 on a short stalk. Tongue very pale yellow. — 1 $ from the Volcano cle Chiriqui, in the British 
Museum. 
A. basalis Edw. (9 e). A large species. Blue-green, slightly glossy, hindwing purplish black, with large basalis. 
grey patch extending from near the base to beyond the apex of the cell and bounded anteriorly by the cell-fold. 
Veins free. — Mexico: Vera Cruz. 
A. flora Schaus (9 e). Similar to basalis, wings more triangular with the apex more pointed. The yel- flora. 
lowish white area of the hindwing smaller, with broad glossy blue edge, especially at the abdominal side. — 
Costa Rica. 
A. viridis Druce (9 e). Also a large species. Veins free, connecting vein between costal and subcostal viridis. 
of hindwing shorter than in the preceding species, about half as long as the cell is broad; in the right fore¬ 
wing 11 and in the left 12 veins! Upperside of body dull green, wings dull purplish green. Antenna and 
underside of wing and body green and very strongly glossy. — Southern Brazil: Casa Branca. 
9. Genus: JPycnoctena Fldr. 
Forewing with 12 veins, all free; hindwing with 7, connecting vein between costal and subcostal 
short, very oblique, upper angle of cell much more produced than the lower. Foretibia without spur ($), 
the spurs of mid- and hindtibiae fairly long. Antenna stout, densely bipectinate ($). 
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