Monograph on Argyresthia. xv 



est the apex being much thicker than any of the others ; between the base and the 

 first fascia there is frequently a square fuscous patch on the inner margin, and a few 

 short fuscous streaks : cilia fuscous. Posterior wings fuscous, with paler cilia. 



This species is so very distinct that there is uot much probability of its being con- 

 founded with any of its congeners ; retinella, it is true, has numerous short transverse 

 fuscous streaks, but is much smaller and has no fascia; the beautiful Andereggiella 

 has some resemblance in markings, but has no scattered fuscous streaks. 



I have met with this species rather plentifully among apple-trees, at the end of 

 June ; and I believe it is not uncommon in orchards in the South of England, but is 

 rarer in the North. 



This is the true Tinea curvella of Linneus, as is proved by two labelled specimens 

 in the Linnean cabinet, and I must say that the Linnean description agrees very well 

 with this insect. 



Zeller's reason for calling this insect sparsella in the Isis was that Fabricius gives 

 sparsella, W. V., as a synonyme of his cornella, and of course the name of the Wiener 

 Terzeichniss, being older than that of Fabricius, had priority ; but it appears that the 

 sparsella of Schaeffermuller's cabinet is quite different, F-v-E. finding under that name 

 two closely-allied species of Gelechia, namely, electella and blandella, F-v-R. 



Sp. 17. sorbiella, (Tischer), Treitschke. 



(Ecophora sorbiella, Treitschke, ix. 2, S. 160, x. 3, S. 210 and 294. F-v-R. Bei- 

 trage, pi. 15, f. 2, S. 22. 



Argyresthia sorbiella, Zeller, Isis, 1839, S. 205, 11. Linn. Ent. ii. 276. 



" This considerably exceeds the preceding " (curvella) " in size, and has on the 

 head, thorax and anterior wings no clear white, but white mixed with yellowish ; the 

 fascia does not reach the costa, but points towards the apex of the wing. 



" Size generally above that of Goedartella ; thorax and head only white, darkest 

 and mixed with yellow on the sides of the thorax, the face, the palpi, and on the un- 

 der-side of the basal joint of the brown and white annulated antennae. The palpi out- 

 wardly generally inclining to pale brownish ; feet shining whitish, inclining to 

 brownish on the left side ; the entire front of the fore feet is brown ; the joints of the 

 hinder tarsi are at their ends hardly perceptibly darker than at their origin. Abdomen 

 brown-gray, whitish beneath ; in the female, the anus yellowish, with long, projecting 

 brown-yellow ovipositor. 



" Anterior wings shining, white, inclining to yellow, only on the inner margin 

 nearly pure white. From the base, the disk, beyond the fold of the wing is more or 

 less richly reticulated with pale yellowish brown, or marked with undulating short 

 transverse streaks. On the middle of the inner margin lies a yellowish brown spot, 

 reaching to the fold, of very variable form, which generally expands at its upper part, 

 and is either placed perpendicularly or turned rather towards the base. (In one spe- 

 cimen there is on it, above the fold, a straight, pointed continuation towards the base). 

 The dark fascia is placed more obliquely exteriorly than in cornella ; it is broad, 

 and when half across the wing takes its direction towards the apex, yet nearer 

 the hinder margin than the costa ; it approaches the former with a spot-like dark 

 broadening, which when rubbed remains as an actual spot below the middle of the 



