212 SPECIES OBSERVED BY THE AUTHOR 



especially that nearest the base of the wing, have rather a ferrugi- 

 nous tinge. 



The larva is from 3-4 lines long ; of a pale yellowish green, with 

 the dorsal vessel rather greyish ; the head is yellowish brown ; the 

 second segment is also yellowish brown, but rather darker poste- 

 riorly ; the spots are small and grey ; the anal segment is posteriorly 

 pale yellowish brown. 



It unites two or three leaves together and eats half the thickness, 

 thus discolouring them ; it conceals itself within a silky tube, which 

 is also covered with excrement. Sometimes it feeds in the calyx of 

 the bud. 



Gelechia biguttella, H.-S. Of this species I reared four, from 

 larvae or pupae collected in Dorycnium hirtum and D. suffruticosum 

 at Mentone in March. I believe the larvae that I found had long 

 ceased feeding and were probably bleached, thus not showing their 

 characteristic colours ; therefore I do not describe the larva. They 

 generally drew several of the leaves of the plant towards the stem, 

 so as to form a sort of tubular habitation ; and amongst them it 

 lived in a web coated externally with its excrement. The perfect 

 insects appeared April 26th and 29th, May 10th and June 1st. 

 This species, though readily distinguished from G. anihyllidella, 

 Hb., by the whiter and more perpendicularly placed opposite spots, 

 comes very close to G. albipalpella, H.-S., which we breed from 

 Genista anglica ; but G. 'biguttella is rather larger, with broader an- 

 terior wings, and the three typical spots are perceptible, though not 

 very conspicuous ; that on the fold is generally followed by a pale 

 scale, and the second discoidal spot is evidently lower down (further 

 from the costa) than the first. 



Gelechia anihyllidella, Hb. I bred one specimen of this on the 

 llth of May, from a larva found at Mentone on the 20th of March 

 between the folded leaves of Psoralea bituminosa. Monsieur Milliere, 

 from having found the larva on a plant of such a peculiar odour, had 

 supposed it must be new, and had described the insect as G. psora- 

 lella (see ante, p. 184) ; this led me specially to hunt on the Psoralea 

 for the larva. 



Butalis dorycniella, Milliere (see ante, p. 187), I found this larva 

 not uncommon at Mentone, March 17th to 23rd, principally on 

 Dorycnium hirtum, though sometimes on D. suffruticosum. It draws 

 together several leaves, which it gnaws and discolours, and amongst 

 them it forms a tight-fitting silken tube, in which it secretes itself, 

 and from which it is no easy matter to dislodge it. From its many- 

 striped appearance it is at once recognized as a Butalis larva ; but I 

 did not succeed in rearing a single specimen of the imago. 



The larva I have thus described : 



Length 6 lines ; pale grey-green, with numerous darker longitu- 

 dinal lines and a whitish grey spiracular line ; head black (the adult 

 larva shows two white lines forming an inverted V on the face) ; 

 second segment black, with the anterior edge white and a central 

 line whitish ; on the anal segment there is a small black plate. 



