i8 9 3-94.] 117 



the water, as the case may be, for the grasses actually growing 

 in the old water-course are by far the most attractive. The 

 collector must be prepared to get his feet wet, or lose most of his 

 moths. The only scarce Geometer that occurs in the marshes is 

 Phibalapteryx vittata. The larva of this moth feeds on Galium 

 palustre, and the moth is extremely abundant in June, both in 

 these marshes and in the Bog Meadows. It is usually a scarce 

 species in Ireland, so that it may fairly be claimed as a local 

 speciality. 



Along the rough hedge at the top of the hill we may capture 

 a number of species, mostly common, but Emmelesia decolorata 

 is a good thing, which is abundant here. Only the commonest 

 butterflies can be expected in such a locality, and it is hardly 

 worth visiting in the day-time, except for Micro-lepidoptera, of 

 which a number of common species occur. On the banks of 

 the river I have found the curious larva of the Chcerocampa 

 elpenor (Elephant Hawk) feeding on Epilobium hirsutum, and 

 the larva of Smerinthus populi is common on the willows. 

 Epione apiciaria also feeds on the willows along the river, and 

 the moth, which is scarce in Ireland, may be netted while flying 

 at dusk in August. Cataclysta lemnata feeds on Lemna in the 

 pond and ditches, and Hydrocampa stagnata on Potamogeton 

 in the pond. Several species of the genus Scopula are common, 

 and a number of Tortrices and Tinece, but nothing rare has 

 turned up here. Altogether, I have taken 103 species of butter- 

 flies and the large moths in this one field, besides Micro- 

 lepidoptera. 



Collin Glen is one of the best collecting grounds in the 

 immediate neighbourhood of Belfast. It is at its best in May 

 and June. Later in the year the vegetation gets so rank that 

 it is difficult to collect in the upper glen, which is the best part. 

 The fauna of the upper and lower glens differs considerably, as 

 might be expected from the different character of the ground. 

 In the lower glen the trees are larger and the ground more 

 open, but on the whole the results of collecting, either by day 

 or night, are disappointing. I have tried here the well-known 



