240 Mr. E. Strand on new 



27 mm.; length of the wing 13, of the body 11 mm.) ; tlie 

 primaries are iu the dorsal half of the basal area partly lead- 

 coloured ; the face and vertex of one of my specimens greyish, 

 of the other dark-coloured (perhaps the former is the natural 

 colour, as the latter specimen appears to be som.evvhat greasy). 

 Most probably the described cocoon from Merida belongs 

 to this species. 



2. Tn'chostibas sanctipaulensis Strand sp. n. 



1 ? from S. Paulo, Upper Amazonas [Hahnel leg.). 

 Cocoon, vide supra. 



Is one of the largest of the known Trichostibas : alar 

 expanse 36 mm. ; lengtli of the wing 16'5, of the body 15 mm. ; 

 and accordingly almost as large as Tr. isthmiella Busck, to 

 which our species appears to be also in other respects closely 

 related. 



Labial palpi black. Tongue whitish. Face and head 

 black, with bluish and greenish sheen. Antennae dark blue 

 above, blackish below. Thorax and primaries dark with, in 

 certain lights, a rather strong violet sheen, in others rather 

 dusky, appearing unicolorous or hardly with a slight trace of 

 a lighter transverse band at the end of the basal third and 

 with blackish cilia. Secondaries as the cilia of the primaries, 

 at the base slightly transparent, the veins also in the middle 

 a little darker than the wing. Underside of both wings 

 dusky, unicolorous grey-brownish black, the distal half of 

 the cilia slightly lighter. Legs as the thorax, the violet 

 sheen partly rather strong. Abdomen like that of the 

 following species. 



3. Trichostibas fontehoce Strand sp. n. 



1 (^ from Fonteboa, Upper Amazonas {Hahnel leg.). 

 Cocoon, vide supra. 



From Tr. sanctipaulensis m. this species differs by a di?- 

 tinct, dirty greyish-w^hite, transverse (a little obliquely 

 directed) band at the end of the basal third of the primaries ; 

 this band is 1'8 mm. broad and about 1 mm. distant from 

 both the costal and the dorsal edge, almost straight and 

 parallel-sided and about 2*5 mm. (in the dorsal area) to 

 4 mm. (in the costal area) distant from the base. At the 

 end of the second third is an indistinct, horseshoe-shaped, 

 greyish-white, transverse figure, the convexity of which is 

 directed towards the margin and the anterior end is some- 

 what dilated; sometimes perhaps this figure is divided 

 into three spots. The underside of the primaries and the 

 ground-colour of the secondaries as well as the cilia of both 



