71 I'LUTELLID/E. 



wings whitish, with the veins streaked with ochreous or fuscous, and 

 with numerous scattered fuscous scales ; on the fold before the middle 

 is a black spot ; cilia pale greyish-ochreous. Posterior wings pale grey, 

 Avith pale greyish-ochreous cilia. 



Not scarce in the neighbourhood of Iluddcrsfield : the imago 

 appears in June and July. The larva feeds on the bark of the 

 honeysuckle in May. 



(Pl.ni 12- Xylostella, Linn. S. N. (12) 890. 389 {ll(Sl).—deiitdla, 

 Fab. ; Haw. ; ^iQi^.—liarpella, W. V. ; Hiib. ; Treit. ; Dup. ; ZelL— 

 harnalus, Fab. Alis anticis rufo-brunneis, dorso late luteo-albo, stria 

 tenuissima obliqua pone medium, plicam superante. Exp. al. 10 lin. 



Head and face yellowish-white ; at the sides brown. Palpi yellowish- 

 white ; second joint beneath brown. xVntennae white, annulated with 

 black. Anterior wings reddish-brown, darkest above the fold and in 

 the middle of the wing, posteriorly paler and of a greyish tint ; the 

 inner margin rather broadly yellowish-white, with an extremely narrow 

 oblique white streak, running half across the wing beyond the middle ; 

 in the extreme apex is a fuscous streak ; cilia pale fuscous. Posterior 

 wings dark grey, with paler cilia. 



Common in gardens and hedges among honeysuckle in July 

 and August. The larva feeds on the leaves of the honeysuckle in 

 May. 



r 



(K-Tii 



Genus IV. THERISTIS. (?(-E'-§^~^ 



Theristis p., Hiib. ; Step. Ilarpipteri/x p., Treit. ; Curt. ; Dup. Pln- 

 tella p., Zell. 



Capilli hirsuti. Antenna? simpliccs. Haustellum mediocre, nudum. 

 Palpi maxillares tiliformes. Palpi labiales, articulo secuudo in fasci- 

 culum tenuem Ivnyum producto, articulo tcrtio erccto hrevl aculei- 

 formi. Aliie anteriores elongata; acuminaUe ; ahc posteriores (ante 

 angukuu analem levitcr retusix;) lanceolata% lovge ciliatfe. 

 Head rough. Antennto simple. Tongue of moderate length, naked. 

 Maxillary palpi slender, filiform. Labial palpi with the second joint 

 prolonged into a Ioikj slender tuft; the -third joint mncli shorter \.\\wa. 

 this tuft, erect, acuminate. Anterior wings elongate, acuminate ; pos- 

 terior wings (slightly cnmrgiuatc before the anal angle) lanceolate, with 

 long cilia. 



Oidy one species is known in this genus; it np])ears in the 

 autumn^ and, hybernating, is again seen in spring. 



1. caudella, Linn. S. N. (12). 891. 417 {ViCu).—Pnnzerelta, 

 Don. ; Curt. — citttrella, Hiib. ; Treit. ; Dup. — acinncidelta, Hiib.; Step. 

 ^ Alis anticis dilute griseo-ochrcis, stria supra plicam ex basi usque ad me- 



dium, maculaque plicic ante medium, saturate fuscis. Ex}). al. 13. V lin. 



