GLASGOW SOCIETY OF FIELD NATURALISTS. 161 



the fruit of a Stellaria or other Caryophyllaceous plant. Each 

 gall contains one or more larvse. At Possil Marsh. Perfect 

 insect unknown. 



Scahiosa succisa, L. — Mr. Cameron informs me that he has 

 observed, on this species at Cadder, an axillary gall very similar to 

 that found on Achillcea Millefolium. I have not seen it. 



Hieracium Pilosella, L. — Margin of leaf involutely rolled, and 

 on its inner face the usual long hairs of upjoer surface are, by 

 irritation of larva, modified into a more or less dense pale white 

 pubescence about one-sixteenth of an inch long. Perfect insect 

 unknown. I have only observed this gall near Craigmaddie. 



Achillcea Ptarmica, L. — (1) A compact, terminal, globular, or 

 oval mass of swollen, often fleshy, imbricated leaves, and of a 

 more or less pink or red colour. Each gall contains a number of 

 larvae of G. flo7'icola, Winn. (2) Axillary, an altered leaf-bud 

 similar to that on the broom, more or less reddish in colour when 

 mature ; monothalamous, containing a single larva of probably the 

 same species as No. 1. Both forms are common at Possil 

 Marsh. 



Achillcea Millefolium^ L. — Generally situated low on stem, but in 

 one case a group of them occurred just below flower heads. Axil- 

 lary, sessile; irregularly rounded or egg-shaped; smooth, glossy, 

 green, brown, or purplish red ; and splits open at apex into several 

 blunt points which curve outwards for escape of insect; the 

 exposed surface green, tomentose with white hairs down to throat. 

 Monothalamous, walls fleshy, containing one larva of C. Millefolii, 

 Loew. Possil Marsh and Milngavie. 



Campanula rotundifolia, L. — Terminal cluster of leaves whose 

 bases have become fleshy; colour green. Produced by C. Cam- 

 pamdce, Muller (?). Near Craigmaddie, 



Veronica Chamcsdrys, L. — Terminal, globular or egg-shaped mass 

 of imbricated leaves, swollen out and covered with a dense woolly 

 pubescence. In the axils of each leaf live a number of larvse of 

 C. Veronicce, Bremi. This is a common and very generally distri- 

 buted gall. 



Nepeta Glechoma, Benth. — Leaf gall, a number on the upper 

 surface of each leaf; oblong, cylindric, and green, covered with a 

 hoary pubescence. The gall is monothalamous, thin walled, con- 

 taining each a single larva of C. hursaria, Bremi. At Kenmuir 

 Bank and the banks of the Kelvin. 



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