the HydrojJtilidcB. 139 
Hydroptila tineoides. 
Hydroptila tineoides, Dal. 1819. 
" Fusca capite, antennis, pedibusque pallidis ; alls fuscis 
pilosulis, superioribus fasciis duabus punctoque apicali 
albis. [Tab. 111. (Act. Holm. 1819, i. p. 125)]." 
" Haliitat in monte Kinnekulle ad litora lacus Wenneri, 
passim frequens, supra undas volitans; [etiam Holmias]." 
" Caput hirsutie crispata yerticis alba, frontis nigra 
. . . . Ob liirsutiem verticis dijudicare nequeo, anne 
adsint ocelli nee ne. Antenna pallidas, nitidulje, apice 
nigricante, articulis cireiter 26 asqualibus. Tliorax griseo- 
pilosus. Abdomen pallidum niticlulum. Pedes albicantes 
feraoribus anticis infuscatis. Tibiaj anteriores apice cal- 
caratse, posticEe rectse fimbriate ante apicem spinulis 
duabus, interiore majore, armatte, et in ipso apice spinulis 
duabus minoribus. Alfe anticfe .... fuscfe, fasciis 
duabus albis pilosis nitidulis requali spatio remotis, exte- 
riore srepius interrupta ; punctum \ inter | illas in medio, 
et aliud in ipso apice ejusdem coloris. Signature ill^ 
tamen facile deteruntur. Ala3 inferiores .... fusco- 
pilosulas." — Dalman. 
Expanse of Avings indicated in the plate. 
Note. — The brackets [ ] enclose words added to the 
original description, whilst the brackets | j- enclose 
words left out from it in the reprint in the "Analecta 
Entomologica." The omissions .... comprise de- 
tails concerning characters of generical significance. 
Genus Ithyteichia, nov. gen. 
Neuration, PI. II. 3. 
Derivation. — (Gr.) Ithu-thrix, straight-haired as op- 
posed to woolly. 
Imago. Antennae in the male half as long as the Avings, 
filiform, clothed with adpressed hairs, which give to the 
joints a subscutiform appearance, the basal joint slightly 
larger than the rest. Head with long coarse hair. Ocelli 
present. Maxillary palpi filiform, with moderate slightly 
spreading hair, five-jointed ; the first tAvo joints very short, 
subequal, the next tAvo of moderate length subequal, the 
fifth a little the longest. Labial palpi Avitli the first joint 
very short, the second nearly as long as the third, the 
third subcylindrical, scarcely compressed. Prothorax with 
