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Mr. F. W. Edwards on British Iimnobiidae. 229 
T. major sp. n. (PI. II. fig. 25). 
A large, stoutly-built species, with entirely unspotted wings, 
but very distinct from the other members of the plain-winged group. 
Head blackish-grey ; ocelligerous tubercle unusually large. Antennae 
in both sexes distinctly more elongate than usual, only the basal 
segment of the flagellum somewhat swollen, especially in the female. 
Thorax dark blackish-brown, scutellum and sometimes sides of 
praescutum reddish-tinged. Abdomen uniformly dark; genital 
segments lighter. Hypopygiwm as in fig. 25: the clasper without 
basal tubercle; basal projections of side pieces forming a complete 
bridge, which comes to a point in the middle; the paired appendages 
of the aedoeagus (parameres?) very short. Ovipositor longer and 
more slender than in the other British species, six times as long as 
its greatest breadth. Legs rather stout, femora rather light brown 
except towards the tips; tibiae darker; tarsi blackish. Wings 
with a slight smoky tinge, in the female more yellowish. Sc, well 
beyond the base of Rs, in some specimens as far as the length of 
the discal cell; R, , , scarcely two-thirds as long as the basal section 
of R,; cell M, much longer than its petiole; discal cell about twice 
as long as broad. JHalteres rather longer than usual, entirely 
ochreous in the female, knob somewhat darkened in the male. 
Length of body, 3 6-7, 2 8-5 mm.; wing, f 7:5 X 2°8, 99 x 3:2 
mm. 
Type and two other males from Shefford, Beds., 17 xi. 1917 
(Ff. W. E.); one other male from Shotover, Oxford, 
14 ix. 1914 (A. H. Hamm); one female from Letchworth 
Herts., 12 i. 1921 (F. W. #.). 
T. rufescens sp. n. 
Allied to 7’. fuscata and 7’. hiemalis, and perhaps only a variety 
of one of them, but differs from both in the much redder thorax 
and in the structure of the hypopygium. The claspers, as in 7’. 
Suscaia, have no basal tubercle; the basal projections of the side- 
pieces just touch in the mid-ventral line, but do not form a complete 
bridge as in 7. hiemalis, and are rather differently shaped from 
those of 7’. fuscata ; the curved parameres are very much shorter, 
less curved and less sharply pointed than those of 7’. fuscata, being 
shorter even than those of 7’. hiemalis. Length of body, 4 mm.; 
wing, 5 mm. 
There are two males in the British Museum from Lelant, 
Cornwall, 28 viii. 1912 (Lt.-Col. Yerbury), and another in 
the Cambridge Museum from Logie, Elgin (F. Jenkinson). 
