196 TRANSACTIONS, NATURAL HISTORY SOCIETY OF GLASGOW. 



for this year are — Linn of Baldernock, 6th June ; Crookston, 

 13th June; Inchmurrin, 19th June. The Crookston speci- 

 men was a male, the other two were females. 



T. hUesce7is, ¥. — This large and handsome species seems to be 

 very local. From the 24th June till the end of July it was 

 exceedingly abundant on the marshy ground and in the Avoods 

 on the north side of the Allander, at Clober. The onlv 

 other locality where it was met with was Tarbert, Lochfyne, 

 where a single specimen was secured on 25th August. T. 

 lutescens seems to be much more infested by parasites than 

 any other species. I caught a specimen at Clober, the thorax 

 of which was completely covered with mites, and their scarlet 

 colour gave it a very brilliant appearance in the sunlight. 



T. oleracea, Linn. — In other parts of the country this is a very 

 abundant and destructive insect, but it certainly was by no 

 means common with us this year in the perfect state. We 

 obtained a few specimens at Crookston on the 13th June, and 

 at Kirn on the 20th idem. It was also brought to me from 

 Troon and Fintry about the same time, but none was seen 

 after the end of June. 



T. paludosa, Mg. — This is the commonest species of the whole 

 genus, and shares with T. oleracea the name of Crane-flv. It 

 did not appear till the middle of July, but after that it 

 simply swarmed, and is still on the wing. I need not specify 

 any localities, for very little difficulty will be found in getting 

 it even in Glasgow itself. It did not appear until some weeks 

 after T. oleracea had disappeared, and this lends some colour 

 to Mr. Yerrall's theory that the two are only seasonal forms 

 of the one species. The only differences that can be detected 

 are the short wings of the female T. 2^aludosa, and the want of 

 the white streak below the costa so conspicuous in T. oleracea. 



T. ochracea, Mg. — This species appears to be very local with us. 

 It was very abundant on the Caddercuilt Ptoad on the 26th 

 June. Mr. Brand, a member of the Andersonian Naturalists' 

 Society, brought me a boxful from that locality. Kirn, 20th 

 June ; Milngavie, 27th June. 



Dictenidia himaculata, Linn. — A female, in Bellahouston Park, 

 13th June. 



