HYMENOPTEROLOGICAL NOTES 223 



apterous Ichneumon, Orcsbitis castaneus. Marsh., occurs on 

 mountain tops on Goatfell, Arran and Gyrvel, Rannoch. 

 Among Alpine Oxyura we have Lygocerus bread albanensis, K., 

 and Z,. bicolor, K., which I captured near the top of Ben 

 Lawers (about 3900 feet) ; and Megaspilus ninUcnsis, Cam., 

 from Ben More, Mull. A very rare British Ichneumon, 

 Arenetra pilosella, Gr., I found in April near a snow-patch 

 half-way up Ben Lawers. 



It need hardly be said that nearer the Equator Hymenop- 

 tera are more or less abundant at a much greater height 

 than they are in more northern regions. Thus at Simla, 

 Masuri, and elsewhere in the Himalayas Hymenoptera are 

 common at a height of 6000 feet and upwards, as they are 

 also in the more southern parts of the Rocky Mountains. 

 Mr. Edward Whymper captured a few species of Hymenop- 

 tera, of both the aculeate and parasitic divisions of the 

 Order, in the Equatorial Andes at a height of from I 2,000 

 to 13,300 feet (see his "Travels amongst the Great Andes of 

 the Equator," p. 356) ; those found at the latter elevation 

 being Ichneumons belonging to the Ichneumonini and 

 Paniscini (cf. Cameron, " The Entomologist," 1908, pp. 95 

 and 1 60). The highest Hymenoptera of which I can find 

 any record are those mentioned by Hooker in his " Himalayan 

 Journals," 2nd ed., vol. ii. p. 146. There we read : " At nearly 

 I 7,000 feet I passed two small lakes, on the banks of one of 

 which I found bees, a May-fly, and gnat." The bees prob- 

 ably were either Bombi or belonging to the genus Andrena, 

 both being not uncommon at high elevations in the Himalayas, 

 as they are in northern latitudes. 



HYDROT^EA BORUSSICA, STEIN, A FLY 

 NEW TO THE BRITISH LIST. 



By PERCY H. GRIMSHAW, F.E.S. 



ON the gth July of the present year my friend Mr. 

 A. E. J. Carter found a single male Hydrotcea sitting on a 

 leaf at Comrie in Perthshire. He noted that it bore some 

 resemblance to H. curvipes, but in certain points did not 



