NOTES ON SWISS RHOPALOCERA. 



243 



N.B. — Up same gorge I took some well-marked Melitaea dictynna, 

 Esp., and some Pieris rapae, L., of large size. On summit I found 

 Farnassius imiemosyne, L., and Erebia styyne, Ochs., the latter with 

 small spots, 8 vii. 04. Also Apatura iris, L., on top and on bridge at 

 end of Weesen Marsh, 8 vii. 04. One should reach the defile by 

 10 a.m. as after 1.^0 p.m. the sun has left it. 



I also took A. levana in the Murgthal ; thirteen there 29 vi. 04, 

 and three 2 vii. 04. The Murgthal is about 1\ hours above Murg — 

 the second station east of Weesen. The spot for the insect is where 

 the char road ends in a steep, grassy track, up a small hill, with 

 springs under the hill on left, and on summit — where there is a seat. 

 At, and all round, this summit A. levana may be found singly, even as 

 far as torrent to the east. However, they were most abundant on a 

 tiny ridge running up beside the wood — a little to west of seat. There 

 they were on white Vindtoxician flowers. I was always on the ground 

 by 9 a.m. 



5. ArascJniia lecana, L., var. prorsa, L. 



I took 121 in the Murgthal— 2 and 3 viii. 04— but did not go to 

 Thalalpsee to look for them. On the Brd it was not necessary to go 

 so far as the hill, as, being a superb day, all I wanted were found on a 

 long strip of wild sage ilowers 200 yards short of the hill. Quite one 

 half were ? s. They flew best from 9-10.30 a.m. Only a few after 

 12.30 p.m. Five weeks after this great catch, on 3 ix. 04, I took two 

 more on some wild sage. The weather then was bad, but occasional 

 gleams of sun brought out two. They were identical with the earlier 

 var, prorsa. 



6. Brenthis tJiore, Hb. 



In gorge leading to Thalalpsee. 38 there on 16 and 18 vii. 02, and 

 24 from 23 vi.-8 vii. 04. Always between 10 a.m. and 1.30 p.m., 

 when sun shines in defile. 



A few were captured among some Melitaea dictynna half-way up, 

 where steep, treeless, stony banks of nettles rise on either side. How- 

 ever, they were most abundant nearer summit on east side of gorge. 

 A few on summit with I'arnassins inneiiiosy)ie and Erebia styyne. One 

 on cool side of Linththal, 1,200 feet above Mellis. 



N.B. —Murgthal looks a likely spot for Brenthis thure if one could 

 easily cross to cool east side of torrent. 



III. Le Prese. 11-18 vii. 01. 



Jidy llth. 



At Alp Grum. Going to it from Bernina Pass. 



Ascending, I took Erebia lappnna, Esp., not very abundant and 

 going over; Coenonympha satyrion, Esp., var. unicolor, Wh., scarce but 

 fresh ; Erebia yorye, Esp., type rare, but var. triopes, Spr., plentiful, 

 both forms quite fresh. 



Descending, I captured Melitaea cyntlda, Hb., in fair condition ; 

 two fresh M. maturna, L., var. ivolfensberyeri, Frey; several C. arcania, 

 L., var. daririniana, Stgr. ; many Brenthis pales. Schifl"., type form; etc. 



