30 THE FAUNA OF SCOTLAND. 



3. N. LUCIDUS, Pz. 



Seemingly not common. Imago end of May. Larva July. Food 

 plant — hawthorn. 



Touch Hills, near Stirling. 



The larva, according to Brischke and Zaddach, is 9 to 10 lines long, 

 cylindrical, shining, deep green, darkest on the back. The spiracles are 

 elliptical, brownish-red, and through them goes a white line. The 2d 

 segment behind the head bears a black shining spot, and there is another 

 of the same colour at the base of each foot. Over the claspers are a 

 number of round, shining, black tubercles; the side folds are beset with 

 small, black, hairy points, standing together in a straight row. The anal 

 segment bears two stumpy, deep-brownish-red cerci, which become black 

 at the last moult; between the cerci stand two black points. The head is 

 pubescent, deep brown; the face and vertex, along with the eye-spots, 

 darker; the mouth is dark-brown. 



4. N. HisTRio, Lep. 



= rufescenSj Htg. 



Eare. Imago in May. Larva in June and July. Food plants — Salix 

 fragilis and S. aurita. 



Larva shining, pale green, often with a slight bluish tinge; the skin 

 (except at the thoracic and anal segments) beset with small black dots; on 

 the back is a darker green dorsal stripe, enclosed between two lines which, 

 when the larva is feeding, are white. The head is of a paler green than 

 the body, and bears a few fuscous dots; the mouth brown. The legs are 

 glassy-green, with brown claws. When full-fed it becomes of a uniform 

 green colour. The pupa is pale green. 



Kenmuir, Glenelg. 



Berwickshire. 



5. N. LONGisERRA, Thoms. 



Eare. Imago in May ? Larva end of June. Food plant — Salix aurita. 

 Glenelg. 



I bred this species from larvae which at the time I took for those of 

 histrio, and suspect therefore that they are similar. 



6. N. FALLAX, Lcp. 



= striatus, Htg. 



Common. Imago in June. Larva in July. Food plant — Salix fusca. 



Larva: head glassy-green, dotted at the top with minute brownish dots, 

 and on each side is a longish brown mark, in which arc the eyes; another 

 brown lino is on the centre of the vertex. All these marks, however, 

 become frequently united, so that the head becomes of a brown colour. 

 The mouth is deep brown. A few hairs are scattered over the head. 



