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TRACHEA. By Dr. M. Draudt. 
5. Genus: Trachea 0. 
Chiefly separated from the preceding genus by the thorax being almost purely clad with scales, with 
parted tufts in front and behind. The genus contains a great number of mostly beautifully coloured and marked 
Noctuids, frequently intermixed with moss-green, from North and South America. A great number of species 
of this genus, moreover, also occur in the palearctic and Indo-Australian region (cf. Yol. Ill, p. 187, and Vol. XI, 
p. 131). 
illocaia. T. illocata Wkr. (= stigmata Grt.) (30 h) is the only American form with long-combed antennae. 
Forewing greyish-brown, particularly below the cell irrorated with a brownish red, the veins striped blackish; 
transverse lines more or less distinctly double, filled Tip with light grey and connected by a black prolongation 
of the coniform macula; maculae whitish, centred darker and finely surrounded with black; the whitish undulate 
line is on both sides bordered with brown. Hindwing blackish-brown with a coppery reflection. Canada to 
Colorado. 
atritornca. T. atritomea limps. (30 i) is an easily recognisable species, white, in some places irrorated with 
olive green, purple brown and black, with dark transverse lines, the posterior line being double, and large green 
and white maculae, below them a large white wedge-shaped spot; behind the undulate line with 3 black spots 
in the marginal area, the largest at the inner angle. Hindwing blackish-brown. From Colombia. 
loxaridia. T. toxaridia Drc. (30 i) also has white forewings in some places tinted olive-yellow and purple brown, 
with blackish-striped veins and black transverse lines, the distal line behind the cell and at the hindmargin 
bordered with violettish-white; the maculae are olive-yellow and black-centred; before the undulate line extends 
a broad blackish-brown band, behind it small white, distally olive-yellow lunae. Hindwing blackish-brown. 
Mexico. 
Icucodonia. T. leucodosita Hmps. (30 i) is a very common species, on the forewing grey, mixed with blackish- 
brown and olive-greenish and strewn with black, with double transverse lines filled up with grey, and between 
the olive-yellow, black-centred and ringed maculae a whitish spot which is continued downward like a wedge; 
behind the whitish undulate line there are three triangular blackish-brown marginal spots. Hindwing whitish 
aqunlani. with a blackish-brown marginal band. -— In f. aqualani Strd. (= ab. 1. Hmps.) the white spots between the 
maculae are grey. Peru. 
svpera. T. supera Schs. is somewhat similar, on the forewing in the basal area, costal margin, and the round 
reniform macula as well as subterminally green, otherwise greyish-brown or blackish-brown with crenulate 
black transverse lines, the posterior line distally of a didl lilac and then shaded with dark olive-brown. Hindwing 
greyish-brown, at the base whitish. Costa Rica. 
delicata. T. delicate Grt. (= interna Grt.) (30 i). Forewing purple blackish-brown, basal area, hindmargin 
and costal margin towards the apex olive-green like the macular bordering and the undulate line, between 
the maculae with a reddish-white spot extending to below the cell; the blackish transverse lines are not very 
distinct; the darker shaded green undulate line turns more whitish analwards. Hindwing brownish-grey, at 
the margin darker, analwards whitish. Canada, United States. 
anguliplaga. T. anguliplaga Wkr. (30 i) is very similar to leucodonta, the ground-colour is much lighter violettish- 
grey or reddish-grey; the reddish-white splintered spot behind the ring-macula and coniform macula is bipartite 
at its lower end and does not extend to the reniform macula before which there is another black spot; the undulate 
line is green; hindwing of a purer white with a light brownish-grey marginal band. From Brazil. Paraguay, 
and Argentina. 
malezleuxl. T. malezieuxi Dgn. (30 k) differs from the preceding in the white not green undulate line and less 
green admixture; the double transverse lines are filled up with a lighter whitish-grey, and the whitish spot 
between the maculae is much narrower and longer and extends almost up to the costal margin. On the white 
hindwing the dark marginal band is very much broader. Ecuador. 
uscana. T. uscana Drc. (30 k) is a larger species with olive-green forewings mixed with red-brown, with grey- 
striped veins and double transverse lines; behind the elliptical green, black-centred ring-macula there is, like 
in the preceding, a reddish-white splintered spot which terminates in two points at the lower end; the very 
large reniform macula is reddish-white, irrorated with red-brown, with a black spot below inside; the undulate 
line is green, proximally shaded with red-brown and distally with blackish triangular spots on the discal and 
submedian folds. Hindwing whitish, distally greyish-brown. Costa Rica. 
viridis. T. viridis Drc. (30 k) is much smaller, on the forewing light bluish-green, in some places irrorated 
with red-brown, with white transverse lines being interruptedly bordered with black on the inverted sides; 
the maculae are small white-ringed spots; before the white undulate line there are small black spots, on the 
margin black, inside white dots. Hindwing black with a coppery reflection. Costa Rica. 
smaratjdi- T. smaragdina Neum. (30 k). The brown forewing is tinted emerald-green in the basal, costal-marginal 
>ia - and distal-marginal areas, the embedment of the double transverse lines, the maculae, and the undulate line 
are likewise green. The grey hindwing is broadly brownish at the margin. Arizona. 
