SOLKNOIHA. 19 



Genus TI. SOLENOBIA. ^- ^ '^' ' 



SoLENOBiA, Zell. L. E. vii. o.'32 ct '.il3 (1852). Tatcporla p., Hub. 



Solenobia p., Diip. 

 Caput superne ct in troutc liirsuliim. Ocelli nnlli. Autciaur! J seta- 

 cCcV, ciliatcC. Os pilosuni, palplH suhmiUis. Ahc oblongie, motlio- 

 criter ciliatiB ; anteriores : ccjlula discoiclalis venas qurnqKc in mar- 

 gincin posticum emittit simjjlices. $ Aptera, aiio lauato. Larva 

 saccopliora, sacco hremmculn, o-vanulato, aiium versus attenuato. 

 Head above and in front liairy. Ocelli none. Anteniur of the <^ 

 setaceous, ciliated. Maxillary palpi undeveloped. Labial ])alpi ex- 

 trerady short, almost concealed in tlie hairs of the mouth. AVings ob- 

 long, with moderate cilia. From the discoidal cell of the anterior 

 wings y/i-e simple veins run to the hinder margin. ? ylpterous, with 

 the anus woolly. Larva case-bearing; the case rullier short, granulated, 

 attenuated towards the anus. 



The food of the larvaj is probably lichen ; the cases are found 

 on tlie trunks of trees, paHngs, and rocks; the h\rvie being full 

 fed in the early spring*. 



The only two British species, of whicli we know the males, are 

 very closely allied. We a[)pear to have several si)ecies of lar\je, ^ « • 

 but from some only females have yet been oblaiued, from which, fo ^(L--^ 

 without continued observations of the larvtc, cases, and whole > ^a-^-. 

 habits of the insects, it is impossible to distinguish the species. ~' " 

 It is in this genus that we meet with the singular })hysiological 

 fact of uniinpregnated females laying fertile eggs, and not as the 

 exception, but as the rule. (See Trans. Ent. Soc. London, vol. i. 

 N.S. p. 231.) 



1. inconspicuella, Sta. Cat. p. () (istl)) ; Zell. Alis anticis ««- ^ ^. 

 gustulis, apiee rotundato, cinereo-fuscis, maculis nuracrosis irrcgularibus ,^o.- c 

 mediocril)us albidis vix distinctis, inargine iwsiicof /tsco-p/(tictato. Exp. 



al. 5i-() lin. 



Head and face grey. Antiaiuic dark-grey. Anterior wings rather 

 tiarroiv, witli the apex rounded, greyish-fuscous, with luunerous irregu- 

 lar rather large whitish spots, not sharply dcftncd ; on the hinder mar- 

 gin is a row of da^-k spots ; cilia alternately whitish and greyish-fuscous. 

 Posterior wings palc-grcy, with paler cilia. 



Not common. The larv;c are full fed before the end of March, 

 when they may be found on palings ; the perfect insect appears 

 early in April. 



2. Douglasii, u. sp. Alis anticis vix unynstis, apiee paulhdain 

 rotundaU), cinereo-fuscis, apicem versns sutnratiuriljus, niaenlis nunierosis 

 irrcgularibus mediocribus/^'/'e distinctis all^idis. Exp. al. (5 lin. 



Head, face, and antenna; greyish-fuscous. Anterior wings hardly 

 narrow, with the apex sUyhtly rounded, greyish-fuscous, towards the 



