THE BRITISH SPECIES OF 8YMPHER0BIUS (HEMEROBIUS) 211 



of the wing much broken up into irregular dots ; 

 gradate veinlets usually heavily shaded. Larger 



darker species striateUus. 



Face and dorsum of thorax yellowish ; neuration of fore 

 wings with pale dotted interruptions ; dark markings 

 on outer half of fore wings mostly placed opposite 

 each other on either side of the dark portions of the 

 longitudinal veins. A pale space at the base of these 

 wings in which the veins are rather indistinct, the 

 transverse veinlets being hardly visible. Paler smaller 

 species elegans. 



Of S. striateUus, in addition to the specimen sent by Professor 

 Carr (Nottinghamshire, from ash), I have seen two examples 

 from Blaekheath (July 2nd, 1895, November 9th, 1895, Beau- 

 mont), and one from Wells, Lincolnshire (August 3rd, 1888, 

 Eardley Mason), all in Porritt's collection. 



S. elegans is represented in the specimens before me by the 

 example from Hampshire (by the Test, June 12th, 1913, Mosely); 

 two from Blaekheath (June 27th, 1896, June 27th, 1901, Beau- 

 mont) ; and one from Lewisham (June 6th, 1873), from Porritt's 

 collection. Mr. Scott's fine series of twelve examples were 

 taken on June 30fch last at Henley-on-Thames. They were 

 fluttering round the ends of the branches of some oaks in an 

 isolated clump of trees. The oaks were much blighted and very 

 sticky. The time was about 7.15, and the evening warm and 

 fine. Other specimens were seen at the same trees at just the 

 same time one or two evenings later. 



My friend Dr. Ris, to whom I am once more indebted for 

 the beautiful photographs which illustrate this paper, tells me 

 that he has of S. striateUus : three females, Katzensee, July 31st, 

 1892 (1), and July 3rd, 1893 (2) ; one female, Rbeinau, September, 

 1907 — believed to be all from birch. Of the smaller species: 

 two females, Salgesch, Valais, June 15th, 1889 (the late Moritz 

 Paul) ; one female, Rheinau, May, 1894. 



When McLachlan wrote his " Monograph of the British 

 Neuroptera-Planipennia " (Trans. Ent. Soc, 1868, part 2, 

 p. 176), he may have had both species before him. Both occur 

 in the Blaekheath and Lewisham district, which he certainly at 

 a later period knew well, and some points in his description 

 might be considered suggestive of both. Thus with regard to 

 the colour of the front he says "sometimes yellowish testaceous," 

 also " anterior wings closely spotted with darker grey and 

 varying according to the extent to which the spots coalesce." 

 On the other hand, his reference to the whitish dotted inter- 

 ruptions on the longitudinal veins of the disc gives a very 

 definite bias in the direction of the smaller species which I 

 believe has been generally accepted as S. elegans. But Stephens's 

 descriptions of elegans and marshami (for a copy of which I am 



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