THE LEPIDOPTERA OF TICINO THE PIOTTINO GORGE. 135 



former larvne (they do not appear to be developed on all), are now 

 replaced by two very long inconceivably tine hairs pointing forwards 

 (fig. ivi). 



I have to express my thanks to all those who have helped me in 

 this investigation, especially Dr. Hodgson and Mr. Grosvenor, for 

 material and information, and Mr. Front for references upon the 

 abstruse points touched upon. 



Explanation of Plate X. 

 Nemokia viridata. 



I. The egg (a) Enlarged portion of empty shell. 



II. Larva just hatched (a) Vertical view of head. 



(Ii) 1st abdominal segment. 



(c) Clubbed hairs. 



(d) Tactile hair on 6th abdominal. 



(e) Clubbed hairs on lateral flange. 

 (/) Tactile hair on 2nd thoracic. 



(g) Two tactile hairs on 1st thoracic. 



III. Larva second instar? (a) The 1st abdominal segment. 



IV. Larva last instar? (a) The 1st abdominal segment. 



(h) Two fine tactile hairs on Ist thoracic. 



(c) The spicules. 



(d) The transparent plates. 



The Lepidoptera of Ticino— The Piottino Gorge. 



By J. W. TUTT, F.E.S. 

 Our luck is out ! So I thought next morning, August 5th, at 

 about 5 a.m., as I turned out to go on setting. The lovely blue sky 

 of the preceding day was covered with grey, the morning was still, 

 and rain looked imminent. A good chance to clear up I tried to say 

 cheerfully to myself — but my other thoughts belied the cheerful 

 thought. However, I plodded on until 8 a.m., and then went to 

 breakfast. Looking out I saw Leucoma saliru busy round the poplars 

 in the road, but the sky was too dull to expect much of a clearance 

 to-day, so I went back and plodded on with the setting until 10 a.m. 

 The streets near the station are planted with planes and poplars, 

 which I could see from my window, and the latter formed the 

 home of a vast number of Leucowa ^alicis, of which the salivary- 

 looking newly-laid egg-masses lay on the leaves, the almost full- 

 grown larviB resting stretched on the stems or rolled up in the 

 spun-leaves ; a large number of pupae was noticed in the rather 

 untidy cocoons the larvje make, whilst on the outside of the recently- 

 vacated cocoons, or on the leaves, was an abundance of newly-emerged 

 imagines, mostly paired, that fell into one's hand, if disturbed, 

 although sometimes the ^ flew off, leavmg only the 2 captive. 

 It was astonishing what a large number of eggs were laid on the 

 trunks of the plane-trees, which could not possibly serve for food, and 

 equally remarkable how few of the imagines were attracted to light 

 considering how abundant the imagines were. By 10 a.m., however, 

 my back ached, the glorious catch of the previous day had been 

 overhauled, and reduced to proper proportions, several doubtful beauties 

 stood on one side, and my friend's advice " if it isn't fine, go down the 

 valley and find the fine weather," rang in my ears. Well one must 

 get out when one has a holiday, and I slipped over to the station, 

 found out the time of the next train down the valley, put on my boots, 



