404 Dr. T. A. Chapman on the 



ately, the sun clouded over and rain began to fall. The 

 caterpillars had vanished, and I had to hurry away under 

 a driving rain, which did not stop till evening. I was wet, 

 but happy. ... I feel sure that, in a fairly dry spring, it 

 would be easy, either at Estaube, or at Pouey Aspe, to find 

 a good many larvae. 



" The summer will in our valley be a sad one, the war, 

 which has taken away our men, will prevent visitors com- 

 ing; furthermore, it rains excessively." 



June 16th. — Received from M. Kondou five larva of 

 L. pyrenaica, four in last instar, nearly full fed, and one 

 apparently in previous instar. They are very like L. 

 arhitulus, the green is much darker, the dorsal stripe has 

 paler green on each side, but no white border; the dark 

 oblique marks on the slope hardly exist, and the dorsal 

 hairs are long and all are conspicuously black, otherwise 

 they agree with orhilulus, so far as my figures and descrip- 

 tion of that larva show. 



June 17th. — 



The small larva supposed to be full-grown in 4th instar (but 

 afterwards found to be only young in the last) is 5"0 mm. long, 1'9 

 mm. wide, of uniform width, almost equally rounded at each end, 

 the posterior end perhaps a little more pointed. The colour is a 

 dark green, with a brownish-black dorsal line; on mid-slope on 

 2 and 3 thoracic and 1 to 7 abdominal is an oblique very dark olive- 

 green rather broad line (downwards and backwards), below this the 

 green colour darkens into a brownish and then to pink, just above 

 the whitish pink lateral line ; each segment at this line projects as 

 a rounded elevation more markedly than on the dorsal flanges. 

 The hairs are conspicuous and black. The green is appreciably 

 paler just beside the dark dorsal line. 



June 17th. — The full-grown larva is 13'0 mm. long and 

 4*0 mm. wide — a thick-set larva. The black hairs are 

 numerous and conspicuous, the largest about O'o mm. long 

 along flanges. 



The colour is dark green. The dark brown dorsal line or band 

 is interrupted in the middle of each segment by a patch of pink- 

 red, which hardly extends beyond the lines limiting the band; 

 beside the band is a paler very narrow band of paler green, as of 

 white well-overlaid with green. The dark oblique lines on slope 

 (when younger) are evanescent, one is not sure whether such lines 

 exist or are only shades due to the " upholstered " hollow, of 



