9420 Insects. 



Description of the Larva of Tethea subtusa. — The egrgs of this species are probably 

 laid at the end of July .md ihroujihout Aiiffust, on the joiintj twiojs of pophir The 

 larva liatches in the lollhiwing spiiiip;, as soon as ilie yoiinjr buds biiisl into le;if; it 

 ininiediately spins two leaves logeilier, and coniiniies lliis practice during tlif wliole of 

 the larval stale. Like some other species it effecis ilie various changes of >kin in the 

 same situation. In conhneineut it appears to leed only at ni;;ht. The fi)ilowing is a 

 description of the full-grown larva, which is not at all variable either in colour or 

 markings, — pale yellowish green, raiher glossy, not unlike N. dicispa. The dorsal 

 stripe broad pale yellow, much more so than the ground colour. Spiracular line the 

 same ; along the latter is a row of black rings, somewhat oval, having a pale yellow 

 centre. There is one such ring in the second and ten following segments. Just 

 midway between the dorsal and spiracular lines is another slender, clear yellow stiipe, 

 slightly interrupted by the segmental divisions. Head chrome-yellow, bordered wiih 

 black. Mouth and prolegs black, slightly mottled with yelluw. The larva lies curled 

 up between two leaves spun together, and in this position, when in a stale of nature, 

 may easily be detected by looking up at the leaves. Pupa subterranean ; pupa-case 

 weak. The larva is full-grown about the end of May, and the perfect inse<-t appears 

 throughout July. It appears widely distributed, and iiot uncommof). — Rrv J. Greene ; 

 Cubley Rectory, Doveridge, Dtrby, July 12, 1864, in ' Enlomolugisl's Monthly 

 Magazine.' 



Habits and Description of the Larva, of Ljozngramma petraria. — A captured moth 

 laid me some e;;gs on the lOlh of May, 1864. These at first were pale straw-coloured, 

 soon turned bright red, and afterwards became dingy. The larvie hatched on the 

 28lh of May, and fed throughout most freely on common fern {Pteris agiiilinu) ; they 

 rested at full leiifzlh, but when disturbed twisted into knots and jumped about aniriily. 

 They went to earth during the last week in June. The larva; assimilate well in appear- 

 ance to their food-plant, and must be hard to detect. When full-fed their length is 

 raiher over an inch, shape cylindrical and of uniform size throughout, except that the 

 segmental folds look contracted and the head is ratiicr flattened. The ground colour 

 olive-green, belly paler, more olive-gray; s(>me individuals had a sli;;ht reddish tint. 

 At first sight the whole larva seems to be covered with very slender cliocol.ite-brown 

 longitudinal lines ; I could count at least twenty-four all round the body, but on exam- 

 ination it is seen that these are arranged in pairs ; thus, there is a douhle dorsal and 

 three double subdorsal lines, the lowest being daikest and thickest. The spiracles 

 black, below ihem a creamy white line ; and the belly is sirij)ed somewhat like the back, 

 only that the Hues are more diffuse and not so numerous ; the se;;nienial folds are red. 

 —Rev. J. Hellins, Exeter, in ^ EnlomologisCs Monthly Magazine.' 



Proceedings of Societies. 



Entomological Society. 

 December 5, 1864. — F. P. Pascoe, Esq., President, in the Chair. 



Additions to the Library. 



The following donations were announced, and thanks voted to the donors: — 

 ' Caialogus Speciernm Generis Scolia," conseripserunt Henricus de Saussure et Julius 



