IRICHOPTILUS] PTEROPHORIDAE 431 



linear: 2 out of 4 or absent, 3 absent, 7 and 9 absent, 10 from 

 near 8 or absent, 11 from near 8. Hindwings trifid, segments 

 linear, 3rd segment with slight black scale-tooth in dorsal cilia ; 

 3 absent. 



A small but nearly cosmopolitan genus, containing only two 

 European species. 



1. T. paludum, Z. 12-13 mm. Forewings light brown, 

 sometimes tinged with yellowish or reddish ; a black subcostal 

 subbasal dot; sometimes a dark fuscous dorsal spot towards 

 base ; sometimes a whitish spot before fissure ; two slender 

 white bars on segments ; all cilia with patches of black scales, 

 costal and dorsal with white bars. Hindwings dai'k fuscous. 



Surrey to Dorset, Cambi'idge, York, in swampy places, local ; 

 C. Europe ; 6, 8. 



2. OxYrxiLUS, Z. 



Face smooth or shortly tufted. Labial j^alpi ascending, 

 second joint with appressed or projecting scales beneath, some- 

 times forming a short angular apical tuft, terminal filiform. 

 Tibiae thickened with scales on origin of spurs. Forewings 

 cleft from about middle ; 2 connate with 4, 3 out of 4, 9 and 

 10 out of 8, 11 from near 8. Hindwings trifid, third segment 

 with strong black scale-tooth in dorsal cilia. 



Specially characteristic of Europe, whence stragglers have 

 spread into other regions. 



1. Forewings brownish-ochreous ; scale-tooth at f 



1. distans. 

 ,, dark reddish-fuscous ; scale-tooth near 



apex . . . .2. 



2. Hindwings with two posterior dorsal scale-teeth 



5. teucrii. 

 ,, with one posterior dorsal scale-tooth . 3. 



3. Dorsal scale-tooth subapical . . 2. jiilosellae. 



„ apical . . . .4. 



4. Forewings white-sprinkled ; bars of cilia white 



3. 2Mrvidacti/lus. 

 ,, not white - sprinkled ; bars of cilia 



reddish-tinged . . 4. hieracn. 



1. 0. distans, Z. (laetus, Z.) 18-20 mm. Forewings light 

 brownish-ochreous, more or less suffused with fuscous; two 

 obscure whitish bars on segments ; cilia with a few black scales, 

 costal and dorsal with Avhitish bars. Hindwings dark grey ; 

 dorsal scale-tooth at f , small. 



