296- Mr. R. McLachlan on 



SERICOSTOMID^. 



Seeicostoma caeinthiacum, n. sp. (PI. XIV. fig. 8) . 



Blackish. Anteoince pale yellow, eacli joint with a 

 broad brown apical ring ; first three or four joints wholly 

 brown. Head blackish, thickly clothed with blackish 

 and golden hairs intermingled ; a tuft of orange-yellow 

 hairs on the vertex between the basal joints of the an- 

 tennae ; maxillary palpi closely masking tlae face, blackish 

 and densely clothed with blackish hairs ; lahial imlpi pale 

 brown. y/iorft;« blackish ; the hinder part of the meso- 

 thorax and the attachments of the anterior wings some- 

 what reddish. Anterior wings long, longly elliptical at 

 the apex, uniformly blackish-brown with golden-brown 

 hairs ; fringes blackish-gray : posterior wings smoky- 

 black with blackish-gray fringes. Legs all bright yellow 

 with the femora somewhat dingy yellow ; the an- 

 terior tarsi faintly annulate with brown ; tibiae and tarsi 

 internally with short black spines. Abdomen blackish. 

 Anal appendices reddish: app. sup. small, flattened pear- 

 shaped, strongly fringed ; app. inf. of the usual form ; 

 app. intermed. deeply furcate,the prongs nearly equal in 

 length, each being very acute, and slightly curved 

 at the tips in opposite directions; penis long and thin, 

 the apex excised above ; sheaths slender, cylindrical, 

 thickened and incurved at the tips ; ventral triangle small, 

 somewhat obtuse, but with the apex produced ( ^ ) • 



Expanse of wings 12'". 



Preth Valley, Upper Carinthia, 26th May {Zeller) , 

 1 ^. 



In the colour of the antenna? and legs this insect re- 

 sembles S. Selysii, Ed. Pictet, and S. sp. nov. No. 5, of 

 Hagen in the Stettin Zeitung for 1859, p. 148 (after- 

 wards in his " Synopsis Synonymica," named 8. timi- 

 dum) ; and it is no doubt allied thereto, but the form of 

 the app. intermed. and of the ventral triangle seem 

 sufficiently to sejDarate it. 



Seeicostoma paciale, n. sp. (PL XIV. fig. 7). 



Blackish fuscous. Antennm brown, not annulate. Head 

 with tufts of blackish hairs at the angles of the occiput, 

 and a tuft of orange-yellow hairs on the vertex between 

 the basal joints of the antennae ; eyes co^jpery in dead 



