PACHYLIA; OBERTHURION. By Dr. M. Dratidt. 
869 
G. caicus Cr. (= cacus F.) (98 d) is easily recognizable by the light linear markings behind the cell-end caieus. 
of the forewing and the bright red-brown hindwing the marginal band of which is divided into vein-spots. 
Abdomen above with dark bands. Larva reddish, light brown or light green with blackish or reddish subdorsal 
lines and lighter lateral stripes; until the last moult it has a straight black horn, after that only a slight 
protuberance. It lives on Apocyneae (Echites, Zschokkea). Distributed from Florida across the West Indies 
to Central and South America as far as Buenos Aires, but absent in Mexico. 
2. Tribe: Sesiicae. 
31. Genus: (Pacliylia Wkr. 
The genus contains a number of large, stout species with rather broad wings, the non-angular forewing 
with a pointed apex. Palpi smoothly scaled, antennae long with a long slender terminal hook. Thorax tuftless, 
G abdomen with a triangular anal tuft; distal edge of the dorsal segments with a series of long thorns alter¬ 
nating with short ones, though the latter may also be absent. 
Type: P. ficus Wkr. 
P. ficus L. (= crameri Men., lyncea Clem., venezuelensis Schauf., undatifascia Btlr.) (98 e) is one of ficus. 
the commonest American Sphingidae, olive brownish with darker notched transverse markings which are 
mostly inconspicuous, and a large light subapical spot of the fore wing; hindwing ochreous with a black 
median band and marginal band, and a small white spot at the anal angle of the hindwing. A somewhat 
darker and usually smaller form is: — aterrima Bonningh. Larva green or grey mixed with reddish, with yellow aterrima. 
subdorsal lines and with oblique stripes which, contrary to the other Sphingid larvae, extend from in front 
above to behind below. Before the pupation it turns slaty blue beneath, orange above. It lives on many species 
of Picus and on Artocarpus. Distributed from Florida and Texas across the West Indies to Buenos Aires. 
P. syces Him. (= ficus Stoll, inornata Clem.) (98 e) is similar, darker, more indistinctly marked, still syces. 
with a light costal-marginal triangle in the centre, which is rarely connected in the type with a small inner- 
marginal spot, forming a light median band. Hindwing unicoloured brownish-grey, likewise with a white 
anal dot and without a median band. Mexico to South Brazil and Bolivia. The form: — insularis R. <b J. insularis. 
(= ficus Wkr. part., syces Btlr. part., inornata Grt.) is distinguished by the non-interrupted light median 
band of the forewing. West Indies, Jamaica, Haiti. — cubensis Gloss is much smaller, monotonously dull cubensis. 
brown; only the light apical spot is distinct, the light median area only indicated at the costal margin, 
without the notched lines before and behind it. Larva similar, but it does not turn orange above before the 
pupation, but exhibits broad jet-black saddle-spots on each segment. 
P. darceta Drc. (98 e) is the rarest of the 3 species, without the light subapical spot, more reddish- darceta. 
brown with 3 dark oblique stripes, the first proceeding at the costal margin 1 cm behind the base and ex¬ 
tending to the first third of the inner margin, the second beginning at the costal margin 5 mm behind the 
first stripe and extending towards the anal angle, the third from the centre of the costal margin to the centre 
of the distal margin, a thick discal dot at the cell-end. Hindwing as in syces, but without the white anal 
dot. Panama to Bolivia and Para. Larva still unknown. 
P. resumens Wkr. ( = inconspicua Wkr., tristis Men., versuta Clem.) (98 f). Likewise an extremely resumens. 
common, smaller species, more reddish brown on the hindwing, marginal area usually somewhat darker, above 
the more or less distinct transverse markings similar to those of ficus there are 2 oblique very indistinct sha¬ 
dowy bands in the same direction as in darceta. Hindwing as in ficus, but without the white anal dot. Larva 
similarly coloured and marked as that of ficus, but more whitish on the dorsum and without subdorsal iines. 
Florida to Buenos Aires, Paraguay, Parana; West Indies. 
32. Genus: ©bertlmrion Clark. 
Closely allied to Paclnylia, eyes large, not ciliated. The thorns of the distal tergit-margins in one row, 
very strong and long; antennae more club-shaped with a long thick and obtuse terminal hook. Distal margin 
in both wings undulate between the veins, especially on the forewing the costal margin of w'hich is extra¬ 
ordinarily bent downwards before the apex. Only 1 species: 
0. harroverii Clark. Body dark brown above, lighter, wood-coloured beneath. Fore wing above wood- harroverii. 
coloured with darker margins and a dark brown subbasal dot behind which there is an irregular line almost 
vertical to the inner margin; double anterior transverse lines enclose a dark brown band of 2—3 mm width; 
a thick brown spot at the cell-end; posterior transverse line curved S-like, a brown area behind it between 
vein 3 and the inner margin; 2 dark lines towards the margin; marginal area darkened enclosing a triangu¬ 
lar light costal-marginal spot. Hindwing wood-coloured with a dark inner-marginal band and a white anal spot. 
Length of forewing: 47 mm. Costa Rica. 
