THE BRITISH SPECIES OF SYMPHEROBIUS (HEMEROBIUS) 211 
of the wing much broken up into irregular dots; 
gradate veinlets usually heavily shaded. Larger 
darker species. striatellus. 
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. : ‘ : : : ; : é elegans. 
Of S. striatellus, in addition to the specimen sent by Professor 
Carr (Nottinghamshire, from ash), I have seen two examples 
from Blackheath (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 Blackheath (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 30th 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. striatellus: three females, Katzensee, July 31st, 
1892 (1), and July 3rd, 1898 (2); one female, Rheinau, 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 Blackheath 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 
s 2 
