78 
RICHIA; TRICHORTHOSIA. By Dr. M. Dratjdt. 
laetabilis. 
infimatis. 
dernarias. 
remit is. 
parental is. 
decipiens. 
distiehoides. 
chnrtatis. 
arairix. 
came a. 
parallela. 
distinct markings is unmistakable. In America it is found in Labrador as well as in the mountainous districts 
of the Northern and Central States. 
A, laetabilis Zett. (Vol. Ill, t. 13 k) is smaller than the preceding, more variegated and darker grey, 
with distinctly white-ringed maculae and white-edged postmedian line. The $ is much smaller with narrower 
wings than the q. It is found in Labrador; also in the palearctic region (Vol. Ill, p. 59). 
A. infimatis Grt. (12 c) is much more tinted brown or red-brown than the preceding, particularly 
with red-brown longitudinal patches in the interspaces; the black basal ray flows together with the coniform 
macula; transverse lines, especially the posterior line, only marked by dots, the ring-macula by a whitish patch; 
the small blackish uniform macula is encircled with white and below on both sides prolonged and produced. 
Hindwing yellowish or greyish-brown. Canada; Washington; California. — demarius Sm. is dusted with grey 
in the costal and proximal-marginal areas, in the basal and subterminal areas, with an anterior, double, sharply 
dentate transverse line filled up with whitish; the upper median and lower radial branches are towards the 
margin accompanied by white diffuse sagittae. From the same habitats. 
A. vernilis Grt. (= filiis Sm.) resembles infimatis in the scheme of markings, but it is without any 
red-brown tints, and the ground-colour is a much darker grey with black-striped veins; the iongish oblique 
ring-macula is confluent with the reniform macula; the indistinct posterior transverse line is very strongly 
dentated; the undulate line is only marked by the browner shading behind it. Hindwing greyish-brown with 
fringes being white at the ends. United States (Nevada, California, Sierra Nevada). 
27. Genus: Iticliia Grt. 
Allied to the genus E pips ilia from which it differs by the scaled and hairy thorax exhibiting in front a 
sharply ridge-shaped tuft, and besides by the spined anterior tibiae. 
R. parentalis Grt. (12 c). Forewing light reddish-brown, scantily strewn with a darker colour, in the 
costal area dusted with a bluish grey, with single black transverse lines, the discal area between them suffused 
with black and with contrastingly lighter grey maculae therein; undulate line proximally shaded with a brownish 
grey, at the costal margin with a darker spot. Hindwing reddish greyish-brown with pinkish-reddish fringes. 
Colorado. — decipiens Grt. has a bluish-grey head and thorax and much darker forewings with faded, not black 
but only darkened transverse lines; from New Mexico. 
R. distiehoides Grt. is on the forewing monotonously olive-grey, somewhat strewn with black; the 
anterior transverse line is distinct only at the costal margin, the posterior line consists of dark dots on the veins; 
between the indistinct, reddish-dusted maculae the median line being angular at the lower cell-angle extends 
to the proximal margin; the feeble darker undulate line proceeds from a black triangular spot at the costal 
margin. Hindwing light brownish-grey with lighter fringes. Expanse of wings: 35 mm. New Mexico. 
R. chortalis Harv. (12 d). Forewing brownish-grey, strewn with black, with a black basal dot; the 
anterior transverse line is in the upper half black, single, on the veins interrupted, from there brownish and 
double, the posterior line double; between the lighter ringed maculae extends an indistinct median line; undulate 
line light, proximally shaded with brownish. Hindwing white with brownish veins and margin, in the $ dusted 
quite brown. Texas and Colorado. -—- aratrix Harv. has no black colour on the anterior transverse lines which 
are only transverse lines. From New Mexico and Arizona. 
R. camea Drc. (12 d) differs from the other species exhibiting serrate antennae by their simply ciliated 
antennae. Flesh-coloured, dusted over with grey, in the basal area with a dirty whitish submedian patch; 
transverse lines black, interrupted, the posterior line dentate, proximally accompanied by a row of dots; undulate 
line composed of white and dark dots, proximally accompanied by a brownish shade. Described from Chile. 
28. Genus: Tricliorthosia Grt. 
Beside Ala, Trichophotia, and Mimobarathra the only Agrotine genus with hairy eyes which are besides 
ciliated. Proboscis feebly developed, palpi short; anterior body loosely haired, without tufts; the anterior 
tibiae are without spines, only in spinosa with spines. But few species have been described: 
T. parallela Grt. (= terminatissima Dgar). Forewing ochreous-yellowish with an olive tint with 
double, faintly marked transverse lines; the ring-macula is only a dark dot; the reniform macula is dusted with 
reddish, below with black dots; undulate line double, the proximal line stronger, the distal line straight from 
the apex close to the anal angle, the marginal area behind it dusted with white. Hindwing brownish-grey, 
fringes light. Expanse of wings: 28 mm. New Mexico, Arizona. 
