im) 
ho 
lor) 
Mr. F. W. Edwards on 
Corynoneura innupta, sp. n. 
Though this species is not at all uncommon in the Letch- 
worth district of Hertfordshire, it appears not to conform to 
any of the published descriptions of European species; it 
may be diagnosed as follows :— 
?. General colour bright yellow. Head black behind; face 
brownish yellow; palpi yellow ; antennz six-jointed, basal 
joint black, jomts 2-5 yellow, oval, not quite twice as long 
as broad ; last joint somewhat darkened, pointed, more than 
three times as long as broad. Thorax yellow; mesonotum 
with three rather widely separated black stripes, the middle 
one extending from the front margin halfway to the scu- 
tellum ; base of scutellum, apical half of postnotum, also 
the mesosternum blackish. Abdomen yellow ; the tergites 
rather broadly blackish grey towards the base. Legs pale ; 
extreme tips of femora, tibiz, and tarsal joints rather indis- 
tinctly darkened ; front tibia about 1*7 times the length of 
the metatarsus. Wings clear; R extending very slightly 
beyond the middle of the wing; Cu forking noticeably 
beyond the tip of R. 
Length 0°9 mm. 
C. innupta must evidently bear a close general resemblance 
to C. scutellata, Winn., and C. pumila, Wulp (both of which 
are unknown to me), but these two are said to have the 
scutellum yellow at the dase instead of the apex, and there 
are some other points in the published descriptions which 
seem to indicate that our insect cannot be the same as either. 
In the autumn of 1917 I reared a few females of this 
species from the same pond from which I had obtained 
Chironomus clavaticrus. Again, in the spring of 1918 Cory- 
noneura larvee appeared in a breeding-jar for mosquito-larve. 
These latter were collected in a temporary puddle in a copse 
at Arlesey, Beds, and were supplied with dead leaves and 
water from a ditch (also temporarily full) in my garden at 
Letchworth. I do not know from which locality the Coryno- 
neura larvee originated. I have also swept female specimens 
from vegetation at the lakeside at Radwell, Herts. 
From the larve in this jar, which was kept closed the 
whole time, about fifty specimens emerged in the early part 
of June, all of which were females ; probably they were the 
offspring of a specimen which hatched unnoticed earlier in 
the year, since the material was collected early in April. 
Some of the pup were isolated, and both the specimens 
which hatched from them and the others in the main recep- 
tacle deposited egg-masses which produced larve about 
