NOTES ON LEPIDOPTERA FROM THE PYRENEES. 157 



portion to and fro. The colours are pale yellow-brown, rich red-brown, 

 and black. The markings are in longitudinal lines. The lateral 

 flange forms a yellowish line, three other yellowish lines occur between 

 this and the dorsum, with wider, darker spaces between, and a narrow 

 dorsal band between the two most dorsal yellow lines. The dorsal 

 band is the narrowest, and the three below it (to the flange line), on 

 either side, are successively rather wider. • The dorsal band is red- 

 brown, with black on the middle of the segment, and a smaller black 

 mark at the posterior border. The next (subdorsal) band has rather 

 more black than red-brown, the brown being at middle, the black at 

 margin of segments, with a faint pale line down the middle of the 

 band. The third band is uniformly dark. The fourth and broadest 

 contains the spiracle, is without black, redder at the margins close to 

 the bounding lines, and presents most distinctly what obtains less 

 obviously in all the markings, that they are made up of fine lines and 

 dots, or marblings. Beneath the flange line is a broad, nearly black, 

 band, then a pale tine line, then a broad reddish band, and another 

 pale line, leaving a narrow ventral band, also pale reddish-brown, but 

 with a square black mark in the middle of abdominal segments 

 2, o, 4, 5, and 6. These markings continue from the 9th abdominal 

 forwards to the 1st, the spiracular band on the thorax is dark, and 

 tends to fuse with the dark one above it. The anal plate is cinereous, 

 with red-brown dots and margin, the clasper flaps are similar. Head 

 ochreous, with brown markings, small and numerous; eyes quite black, 

 legs same as head; forward prolegs same as the ventral band; spiracles 

 conspicuous black dots ; width of head about l-5mm., the body 

 narrows a little to it from aboiit the 2nd abdominal segment. The 

 abdominal segments have a broad front subsegment, three median 

 narrow ones, and a broad posterior one, which has indications of con- 

 sisting of two. The lateral flange has marked segmental incisions, 

 and is very distinctly divided into four nearly equal portions by sub- 

 segmental incisions on the forward abdominal segments, in the latter 

 into a large front and smaller posterior one. The larva has a habit, 

 when moving, of vibrating to and fro laterally, in a way similar to 

 that seen in Geometers and other larvte. A J moth emerged to- 

 day (October 27th, 1907), pupated October 11th. There are now eight 

 or nine spun up, and some still feeding, all in last instar (one '?). 

 On October 31st, a S emerged ; on November 1st, another ^ emerged. 

 Pupation (November 1st): I gave the larvfe for pupating only some 

 l)its of filtering paper, several selected, rather than use this, to pull 

 tog-ether stems and leaves of foodplant, in two or three instances, 

 when a small plant with its root was aftbrded, going down amongst 

 the croAvded stems close to the root, and here spinning its cocoon ; 

 others, however, used the paper ; I concluded that any thicket of 

 vegetation close to the ground, whether of living or dead material, 

 would probably be the natural situation of the cocoon. The paper 

 gave, perhaps, the easiest means of observing how the cocoon was 

 constructed. As complete an enclosure as possible was selected, and 

 the open spaces closed by silk, drawn across as an open network, through 

 which the pupa could be seen. When 1 say network, I mean a tangle 

 of threads Avhich ran together into strands, so as to have many open- 

 ings, mostly nearly circular, of various sizes up to about 1mm. in 

 diameter, into this network was, however, also worked little bundles of 



