200 MANDIBULATA. TRICIIOPTKRA. 



Sp. 19. caliginosus. Niger, antennis tenuissimt alho annulatis, alls brunnes- 



cente-fuscis, immaculatis, posticis bust subiridescentibus, pedibus ochraceo- 



brunneis, tarsis paUidloribus. (Long. corp. 3 liti.; Long. Ant. 11 lin. ; Exp. 



Alar. 9—10 lin.) 

 Lep. ater. Steph. Catal. 320. No. 3G47. 

 Deep black : antennae with very narrow white rings ; wings brownish-fuscous, 



immaculate ; posterior a little darker, and slightly iridescent, especially at 



the base ; legs ochreous-brown, with the tarsi paler. 

 In this and the following insect, as well as the immediately preceding one, the 



third, or hinder twig of the 5th nerve arises nearly upon the transverse 



nervure. 

 Pictet having a Mys. atra (described in p. 196), it becomes necessary to change 



the name I had applied to this species. 



Common, within the metropolitan- district, in June and July. 



Sp. 20. aterrimus. Ater, antennis albo tenuissime anrnilatis, alls fusco-ni^ris, 

 nervis saturatioribus, pedibus fuscis. (Long. corp. 3 lin. ; Long. Ant. 6^ lin. ; 

 Exp. Alar. 84— 9^ lin.) 



Lep. aterrimus. Steph. Catal. 320. No. 3649. 



Deep black : antennae with slender white rings ; palpi fuscous ; wings brown- 

 black, with darker nervures, and immaculate ; posterior somewhat paler ; 

 legs fuscous. 



Also common, in the vicinity of the metropolis, in June and the 

 beginning of July. 



Sp. 21. bilineatus. JViger,paIpis antennisgue brunneis, his obscure JIavo annulatis, 

 alis brunneis, lineis 2-bus abbreviatis albidis, pedibus ochraccis. (Long. corp. 

 2| lin. j Long. Ant. 6 lin. ; Exp. Alar. 8 lin.) 



Phr. bilineata. Linne, — Lep. bilineatus. Steph. Catal. 320. IVo. 3651. 



Black: palpi brown; anteimse brown, with several of the lower articulations 

 faintly annulated with ochreous; anterior wings brown, each with three 

 oblique whitish lines or streaks, one of them on the inner margin, forming a 

 streak common to both wings, the other two towards the apex of the costa; 

 posterior wings hyaline and iridescent; legs ochreous, the tarsi faintly annu- 

 lated with brown. 



Not common : taken in June near London. 



§ D. Anterior wings (sometimes very narrow) with the nervures rather 

 indistinct, the 2nd nervure alone bifid on the posterior margin. 



Sp. 22. quadrifasciatus, Niger, alis ochraceo-testaceis, anticis fasciis quatuor 

 latis nigris posticis immaculatis. (Long. corp. 2^ — 3 lin.; Long. Ant. 7 lin. ; 

 Exp. Alar. 8—10 lin.) 



