species of the (re?ius Trichostibas. 2ll 



wings are as in Tr. sancti'paulensis, but the secondaries are 

 in tiie basal two-thirds strongly transparent and accordingly 

 oreyish white appearing, with hardly darker veins. The 

 liair pencil of the base of the cosfa of the secondaries long 

 and snow-white. The underside of ihe secondaries only in 

 tlie basal and dorsal area a little lighter than the primaries. 

 Abdomen anteriorly more greyish than the thorax, posteriorly 

 as this or with a stronger greenish sheen. Anal tuft distinct. 

 Hind tibia thickly covered with long hairs. Alar expanse 

 29 mm.; length of the primaries 13, of the body 12*5 mm. 



That this form is not the other sex of the previous species 

 {Tr. sanctipaulennis m.) is evident from, among others, the 

 fact, that tlie cocoons are different {vide supra). 



4. T/ichostibas distincta Strand sp. n. 



1 S fiom Chiriqui, Yulkan, 1892 [Tiotsch leg.). 



Belongs to the spotted group of the species and is easily 

 distinguished. Primaries olivaceous brown, with light, 

 unusually distinct spots, which are so large as to fill up at 

 least half of the wing, light greyish white, sharply marked, 

 and form the following figures : in the basal half a trans- 

 verse band consisting of four longish spots, only indistinctly 

 separated by the veins, of which the posterior touches the 

 dorsal edge and is about three times as long as broad, the 

 following is hardly half as long as the posterior, ihe next 

 following is about two-thirds as long as the posterior, while 

 the anterior is the smallest of the four and does not touch the 

 costal qA^q. The area of the outer margin, as well as the 

 cilia, covered with a band of the same liglit colour, which is 

 2-3 mm. broad and posteiiorly and submedially indistinctly 

 unites with a large, roundish, but rather irregular spot, which 

 fills up almost the whole median area from the costal edge to 

 the fold, and looks like an irregular annuliform figure, in- 

 cluding a triangular spot, or as if formed by six to seven spots, 

 partly joining. Underside of the primaiies greyish brown, 

 along the outer margin somewhat lighter, in the dorsal area 

 with a yellowish-whitish spot, and before this with some 

 violet sheen. Secondaries transparent, with blackish-brown 

 cilia and veins, the costal area and a line on the outer margin 

 opaque, blackish brown ; of the hair pencil of the costal edge 

 only a few greyish-white hairs are to be seen. The body is 

 much worn, but appears, as well as the appendages, to be 

 dark brown or blackish ; thorax above partly or wholly 

 greyish white. 



Alar expanse 27 mm. ; length of the wing 12"5, of the 

 bod}-- 10 mm. 



Ann. it Mag. X. Hist. Ser. 8. Vol. vii. 16 



