104 THE ENTOMOLOGIST. 



TRICHOPTERA IN DORSET. 



By F. H. Haines, M.R.C.S., L.R.C.P. 



The following species of Trichoptera were met with during some 

 seasons in which attention was paid to this Order in the Wareham 

 district. Phryganea grandis, Linn., common round the lake in 

 Morden Park in May and early June, resting by day on trees and 

 other objects near. It associates itself pleasantly with the spirit 

 of the spring morning. P. striata, Linn., occurs with it, but less 

 commonly. It is found also among the osier beds of the backwaters 

 of the Frome. P. varia, Fab., is abundant in July, especially at 

 Morden, hiding in the crevices of fir trees growing near heathland 

 ponds. Colpotaulius incisus, Curt., is found on Tadnoll marsh in 

 May, harbouring in the coarse growth to run up the rushes fast 

 and fly a, short way if disturbed. Glyphotaelius pellucidus, Retz., 

 is very abundant, breeding in the small ponds found in copses as 

 well as in the larger existing in certain woods. It shelters in the 

 very low bushy branches of the oak trees round its haunts, and is 

 most numerous in early summer. The commonest species of Limno- 

 philus are L. marmoratus, Curt., lunatus, Curt., centralis, Curt., 

 affinis, Curt., auricula, Curt., and sparsus, Curt., most of them 

 abounding. L. marmoratus frequents rivers in summer and early 

 autumn, and is very common on the Frome and also round the 

 lake (through which a stream runs) in Morden Park. L. lunatus 

 inhabits the still waters of ponds and marshes throughout the 

 area chiefly in late summer and autumn. L. centralis is found near 

 standing waters, but also far away from even a pool in the fir- 

 woods. McLachlan suggested that it might breed in spongy bogs 

 where there was no surface water. Judging from the positions in 

 which L. auricula and sparsus are found, also often in woods, distant 

 from anything beyond puddles and damp hollows, they may breed 

 in these spots amid dead leaves in very shallow water, which is 

 occasionally reduced to mere dampness. Abounding everywhere 

 auricula occurs from May to autumn. Sparsus is largely a May 

 and summer insect, but it continues later. They are easily secured 

 by shaking pine branches into a net in the fir districts. L. affinis, 

 considered rather a woodland species, occurs in numbers amid the 

 Spartina and other growth on the shores of Poole Harbour : evi- 

 dently a maritime tendency is not exceptional. It occurs earlier, 

 but I have met with it most freely in autumn. L. rhombicus, Linn., 

 is commonest in June about Morden Park lake in the reeds and 

 rushes. L. elegans, Curt., occurs rather uncommonly at Morden 

 near heathy swamps, and it is to be beaten out of the lower branches 

 of oaks where the woods and heathlands meet. I have taken L. 

 griseus, Linn., in Coombe Wood and near Tadnoll marsh in April 



