BANKESIA DOUGLASII. 201 



2nd pair of legs beyond wings, and 3rd pair beyond 2nd, the 1st pair shorter 

 than wings ; tubercles as in larva ; dorsal spines form patch in front of i on 

 abdominal segments 3-8 ; long recurved setas on 8-10, two dorso-anal spikes close 

 together ; spiracles on small conical projection ; two swollen bulbs on venter of 9th 

 abdominal; movable segments 3-7. Female: Mouth-parts modified, labium in 

 three sections, maxillary palpi obsolete ; antenna) only to end of labial palpi ; wings 

 to end of 2nd abdominal ; movable segments 3-6 ; eyepiece large ; dorsal spines, 

 recurved setae, and dorso-anal spikes much as in male. 



Imago. — Male : Wings elongate, strongly speckled (as in Solenobia) ; tongue 

 obsolete ; ocelli as in Taleporia, antennas with each segment thickened basally and 

 distally, with two transverse rows of scales dorsally, and a transverse row of long 

 hairs at base ventrally, a few shorter hairs in front of this row. Female : Nearly 

 apterous, legs well-developed, anal tuft strongly developed ; ovipositor as in Tale- 

 poria and Solenobia, emerges from case for copulation, and remains outside for 

 egg-laying. 



The genus Bankesia has been but little studied, and, at present, 

 only two species can be considered as well known, viz., B. alpestrella a 

 widely-distributed species in the Alps of central Europe, and the 

 species that occurs in England, Belgium, ? France and Corsica, and 

 that has, until quite recently, been known as conspurcatella, Zeller, but 

 which Walsingham has recently determined to be distinct from Zeller's 

 Tuscan type, and for which he has proposed the name staintoni. 

 Besides these, Walsingham has described another species taken on the 

 slopes of the Monte d'Oro, near Vizzavona, in Corsica, under the name 

 of montanella, whilst Constant has also described a species allied to 

 conspurcatella and staintoni, as vernella. This occurs in the Alpes- 

 Maritimes in March, and Chapman notes it as being similar to 

 staintoni, but larger, more uniformly dotted and rarely with the dark 

 mark on the inner margin. Another of Constant's species is named 

 defoliella, and is reported from the Esterels and Aipes-Maritimes 

 in November. Some doubt, however, has been expressed as to whether 

 this be really a Bankesia, its antennal structure disagreeing therewith. 

 It appears probable, therefore, that the genus is more extensive than 

 has been generally supposed. The life-histories of B. alpestrella and 

 B. staintoni have been fairly thoroughly worked out, although until 

 now the latter has not been published. We have already noted (p. 200) 

 our uncertainty as to the position of clouglasii. Its superficial appearance 

 leaves us no option but to place it in this genus. Durrant says that 

 "it strongly recalls staintoni, and one might assume that this con- 

 formity would be also indicated in the larval stage, but in any case 

 neither douglasii, vernella nor staintoni are identical with the true 

 conspurcatella." 



Bankesia douglasii, Stainton. 

 Synonymy. — Species : Douglasii, Sta., " Ins. Brit.," pp. 19-20 (1854); "Man.," 

 ii., p. 280 (1859) ; Meyr., " Handbook," &c, p. 775, in part (1895) ; Walsm., "Ent. 

 Itec," xi., p. 257 (1899). Triquetrella, Dbld., '■List," 2nd ed., p. 27 (1859), nee 

 Treitschke. [Meyrick's reference of this species to wocltii, Hein., appears, after 

 comparison of the specimen with looclzil, to be erroneous.] 



Original description. — Solenobia clouglasii, n. sp. Alis anticis vix 

 angustis, apice paullulum rotundato, cinereo-f uscis, apicem versus satura- 

 tioribus, maculis numerosis irreguiaribus mediocribus fere distinctis 

 albidis. Exp. al. G lin. Head, face, and antennre greyish-fuscous. 

 Anterior wings hardly narrow, with the apex slightly rounded, greyish- 

 fuscous, towards the apex rather darker, with numerous irregular 

 rather large whitish spots somewhat sharply defined ; cilia whitish, with 

 some fuscous patches opposite the fuscous portions of the hinder 



