178 [-luly, 



TEICHOPTERA. 



PHRYGANEID^. 



Phryoanea varia, F. — At Loch Watlce I took this species ; the specimens 

 were rather Hghter than those from the Highlands of Scotland. [Occurs near 

 LerwickJ. 



LIMNOPHILID^E. 



CoLPOTATTLius iNCisus, Curt. — A few pigmies occurred at Loch Watlee, and 

 beside the hums at Crussafield. The males measure 11 mm. and the females 12^^ 

 mm. across the wings. 



LiMNOPHiLUS RHOMBICTTS, L. — A female, measuring 37 mm., of the ordinary 

 form was taken at Vallafield. 



L. MARMORATUS, Curt. — A small race of this, measuring 26 mm., occurs, in 

 which there is not much diffei'ence from southern specimens, excepting size. 



L. LUNATITS, Curt. — One specimen at Tonga Daal, small and dark, vei-y similar 

 to specimens which I have in my cabinet from Orkney, collected by Professor Trail. 



L. IGNAVUS (Hag.), McLach. — Ordinary specimens, calling for no special 

 remark, occurred at Crussafield. 



L. AaTTATUs, F. — A prettily marked form occurred at Baltasound, in which 

 the dorsal portion of the fore-wing is of a dark colour, while the costal portion is 

 very light and transparent, with the pterostigma well marked. 



L. AFFINIS, Curt. — Very common in the ground at Haligarth and upon the 

 stone walls on Crussafield. The wings were more or less sprinkled with dark dots, 

 giving the insect a rather pretty look ; the pterostigma was in all cases very dark. 

 The specimens measured from 21 — 27 mm. 



L. AUEictTLA, Curt. — Common by beating the bushes in Haligarth Gardens. I 

 took a number of specimens measuring only 14 mm., but did not see any so small 

 (12^ mm.) as the one Mr. McLachlan mentions as having been taken by Mr. Curzon. 



L. GRISEUS, L. — A specimen of the ordinary form occurred on Crussafield. 



L. SPARSUS, Curt. — The specimens of this species were remarkable for the 

 uniform colour of their wings, being either of a pale smoky-grey or a dark brown 

 with a slightly darker pterostigma ; some of the specimens reaching barely 18 mm. 

 in expanse of wings. 



Stenophtlax latipennis, Curt. — This appears to be the commonest caddis 

 fly in Unst ; the cases with larvED might be found in any quantity almost under any 

 stone in the Lochs, and the fly could be reared by placing the cases in any vessel 

 with a little damp moss. At night it was not a ease of catching the fly but of 

 turning it out of the net, as at every sweep along the short herbage bordering 

 streams, lochs, &c., numbers might be bagged. Some of the specimens were very 

 small, only measuring 28^ mm., <J & ? . A few are light straw coloured, although 

 the majority are of a more or less dark colour. 



S. coNCENTRicus, Zett. — A few females of this were taken at Crussafield, being 

 attracted by a white sheet sjiread for that purpose. Expanse of wings, 40 mm. 



Mesophylax impuwctatus, McLach., var. zetlandictts, McLach.- — This oc- 

 cui-red all over the Crussafield burns, and might be taken by sweeping after dai-k. I 

 captured over a dozeji of it. 



