172 MANDIBULATA. TRICHOPTEEA. 



Phi. antennatus. Steph. Catal. 318, No. 3612. — Hyd. tenuicornis. Pidet, 

 p.203.pl.xvn.f.2. 



Head, thorax, and abdomen dusky, or blackish, clothed with a greyish pile ; 

 antennae very long and slender, pale ochreous ; anterior wings hoary-brown, 

 minutely sprinkled with ochreous and black dots, the latter condensed into 

 black spots on the inner margin ; posterior wings dusky-brown, immacu- 

 late ; legs tawny-ochreous, tibise palest. 



Larva with the head and three anterior segments blackish, the former with 

 three orange spots ; the remaining segments, except the last, which, and its 

 appendages, are ochreous, greyish-green ; respiratory organs orange ; legs 

 yellowish 



Not common : found, occasionally, in July, near London. 



Sp. 3. guttata. Capite, thorace ahdomineque nigris, griseo pilosis, alis anticis 

 canescentibus ochraceo nigroque distincte maculatis, posticis albidis, pedibus 

 fulvis. (Long. corp. 3§ lin.; Exp. Alar. 9 — 10 lin.) 



Phi. bimaculata. Steph. Catal. 318. No. 3611. — Hyd. guttata. Pictet, p. 203. 

 pi. xvii.y. 3. 



Head, thorax, and abdomen black, clothed with a greyish pile ; antennje 

 , moderately long, pale tawny ; anterior wings hoary, distinctly spotted with 



ochreous and black, the latter predominating towards the inner margin ; 



posterior wings whitish hyaline ; legs tawny ; claws black. 

 Larva with the head brown, its sides and round the eyes yellowish, the crown 



with a black T ; the three following segments grey, yellowish on the sides, 



and edged with black ; abdomen greenish, its apex and respiratory organs 



whitish ; legs yellow. 



Also uncommon : taken, in June, near London. 



Sp. 4. pellucidula. Capite ■palpis ihoraceque nigricaniibus, aldomine hrunneo, 

 aniennis ochraceis,fusco punctatis, alis semihyalinis, anticis indistincte ochraceo 

 jfuscoque irroratis, marginibus internis et posticis ochraceo maculatis. (Long. 

 Corp. 6i lin.; Exp. Alar. 13— IS^lin.) 



Phi. dorsalis. Steph. Catal. 318. N'o. 3614. — Phi. pellucidulus. Phil. Mag. 

 {Curtis) V. iv. p. 213. — Hyd. Iseta. Pictet^ 204. pi. xvii. / 4. 



Palpi dusky; head and thorax blackish above, clothed with very short greyish 

 hairs ; abdomen brown ; wings semitransparent, anterior very obscurely 

 irrorated with pale fuscous and ochreous, this last colour condensed into 

 roundish spots at the apex of the costa and on the hiiider margin, and into 

 elongate ones on the itmer margin, forming, when the wings are closed, 

 conspicuous dorsal marks; posterior wings paler and more transparent; 

 legs pale ochreous ; antennae very long and slender, ochreous, with dusky 

 spots. 



Larva robust ; head ochreous, with a blackish spot in form of a cross ; thoracic 



