875 
PACHYGONIA; HIMANTOIDES; CAUTETHIA. By Dr. M. Drattdt. 
42. Genus: I*acliygj«>iiia Fldr. 
Distinguished from Epistor by the absence of the thoracal comb and by the posterior tibiae being long- 
scaled dorsally and ventrally, whereby they appear to be flatly compressed. Excepting this latter peculiarity 
it is also closely allied with Perigonia and Nyceryx. 5 species: 
Type: P. subhamata WTcr. 
P. subhamata WJcr. (= caliginosa Bsd., gigantea Schauf., gr-anclis Bsd., nimerod Bsd., subtramata sub- 
Bonningh.) (98 B a). Forewing dark red-hrown with numerous dark transverse lines; a distinct loamy grey tiamaia. 
crescentiform marginal spot below the apex. In distinction with the very similar caliginosa, the distal margin 
is concave below the apex, another concavity is below it between 7 and 5. Hindwing red-brown basally, black 
distally with dull ochreous bands, occasionally with a reddish tint. Mexico to Brazil and Paraguay. Larva 
unknown. 
P. caliginosa Bsd. (= subhamata Wkr.) (98 B a) is exactly like subhamata in colour and marking, but caliginosa. 
it has a pointed apex of the fore wing and a convex, not concave, distal margin. The under surface is lighter. 
Central and South America. 
P. hopfferi St.gr. (98 B a) is similar to subhamata in the shape of the wings, but the forewings are much hopfferi. 
darker brown, so that the transverse markings are much less distinct, the crescentiform light marginal spot 
below the apex is absent, and the bands of the hindwing are bright carmine. Panama to Bolivia. 
P. drucei R. & J. (= hopfferi Ky.) (98 D a) differs in the same way from hopfferi as caliginosa from drucci. 
subhamata, i. e. the apex of the forewing is pointed, the distal margin not concave; the light discal spot is larger, 
the crescentiform light marginal spot below the apex is very distinct; anal angle with whitish scales; the red 
hands of the hindwing are broader. Panama, Honduras. 
P. ribbei Drc. (98 D a) is at once discernible from all the preceding species by the reddish bands of the ribbei. 
hind wing being only represented by rudimentary streaks at the anal angle. Distal margin of forewing dentate. 
Panama. — peruviana Joicey <b Talbot is much darker brown above, especially the hindwing, on which the two peruviana. 
light anal streaks are more distinctly marked. Under surface of a more ochreous colour. From the Upper 
Maranon (Peru), at an altitude of 1000 ft. 
43. Genus: Hlmantoides Btlr. 
Very near to the preceding genus which it resembles in the peculiar laterally compressed scaling of the 
posterior tibiae and of the first tarsal joint. Chiefly separated by the anal angle of the forewing not being bent 
downwards and backwards as in Pachygonia, but ending obtusely rounded. Only 1 species: 
H. undata Wkr. (98 B a) is a smaller species, forewing brown with a white, black-edged stigma and undata. 
several black transverse bands; the median area enclosed by them is mostly dusted with white towards the 
inner margin, more blackish-brown towards the costal margin. Hindwing orange with a black base and marginal 
band. Jamaica. Nothing is known of the life-habits. 
44. Genus: Cautcthia Grt. 
Distinguished from the otherwise similarly built Himantoides by the shorter antennae and normally 
scaled posterior tibiae. 
Type : G. noctuiformis Wkr. 
C. spuria Bsd. (98 B a) is the largest species, marked almost exactly like the following yucatana, but spuria. 
darker blackish-grey, the basal area still somewhat darker like the band extending from the centre of the costal 
margin to the anal angle. Hind wing somewhat lighter yellow with a broader marginal band. Genitally different 
from the following species. Hitherto only known from Mexico. 
C. yucatana Clark (98 B a) is the most closely allied to spuria, but considerably smaller; forewing of yucatana. 
the same smoke-grey colouring and the hindwing just as light yellow, whereas grotei and noctuiformis have 
yellowish orange hindwings; the black marginal band of the hinclwing extends to the cell; markings of forewing 
less prominent, basal area much lighter; a dark band extends from the anal angle obliquely basad to the first 
third of the costal margin, as in noctuiformis. Length of forewing: 16 mm. According to 1 $ from Yucatan 
(Izamal). 
C. grotei Edw. (98 B a) is smaller and very much lighter silvery grey than the preceding species; basal grotei. 
area scarcely darkened, distally defined by double transverse lines, a black discal streak at the cell-end; post- 
