486 TIPULID.E. 



without spurs, ungues small, em podia distinct. Wings glabrous, 

 also the veins. Two submarginal cells, four posterior cells, and a 

 discal cell. Auxiliary vein long, ending some distance before the 

 tip of the 1st longitudinal ; 2nd vein beginning before the middle 

 of the wing and some distance anterior to the subcostal cross-vein, 

 forking about opposite the tip of the auxiliary vein, the sub- 

 marginal cross-vein being opposite the latter point ; the prsefurca 

 a little less than half the full length of the vein ; the 3rd vein 

 originating just before the fork of the 2nd vein, close to the 

 anterior cross-vein, which is at the pointed proximal corner of 

 the discal cell ; the latter being subtriangular and as long as, or 

 slightly shorter than, the 2nd and 3rd posterior cells ; posterior 

 cross-vein distinctly before the fork of the 4th longitudinal; 

 5th and 6th veins nearly straight ; 7th vein conspicuously 

 bisinuate. 



Range. Himalayas, Persia, Europe, and North America. 



Near Trimicra, Os. Sac., but that genus differs from Symplecta 

 by the last joints of the antenna? being suddenly and conspicuously 

 reduced in size ; moreover, in Trimicra the 2nd longitudinal vein 

 issues from the 1st at an acute angle, not in a gentle curve ; and 

 the 7th vein is straight. The basal part of the male genitalia is 

 more thickened in Trimicra. 



Helobia, St. Farg. (1825), antedates Symplecta and is'synonymous 

 with it, but has not been adopted, the reason not being known to 

 the present author. It does not appear to be preoccupied. 



349. Symplecta punctipennis, Mg. (PI. IX, fig. 15.) 



Limnobia punctipennis, Meigen, Syst. Beschr. i, p. 147, pi. v. 



figs. 2, 3, 7 (1818). 



$ . Head blackish grey, shortly pubescent ; frons moderately 

 broad, blackish grey. Proboscis yellowish, palpi blackish. 

 Antennae dark blackish brown, with a little light pubescence. 

 Thorax somewhat elevated ; dorsum rather restricted, blackish 

 grey, with a blacker dorsal line from the anterior margin, dis- 

 appearing gradually before the suture, the space on each side of 

 this line and the sutures narrowly lighter grey ; sides of dorsum 

 narrowly yellow ; sides of thorax blackish grey, with a narrow 

 yellow line above the hinder pleurae. Scutellum and posterior 

 corners of mesonotum yellow, the former a little darker at the 

 base ; metanotum blackish, basal corners minutely yellow. 

 Abdomen dark blackish grey, with a little pale pubescence; 

 posterior margins of segments normally yellowish white on both 

 dorsum and belly in both sexes, but sometimes indistinct or 

 absent. Genitalia of male moderate in size, reddish brown, the 

 claspers bearing some smaller appendages ; upper and lower 

 plates short, nearly as broad as the last abdominal segment. 

 Ovipositor normal, of moderate size, brownish yellow. Legs 

 blackish or blackish brown ; tips of femora slightly but quite 

 distinctly enlarged. Wings nearly clear, with very small, blackish 

 infuscations placed as follows : just below the base of the prae- 



