TIPULA. 



311 



thorax mainly dark olive-brown, with a little silvery reflection ; 

 the margins of the various parts oi the pleurae lined with grey, 

 and a yellow area immediately below the front part of the dorsum, 

 extending to the wing-base. The whole dorsal surface of the 

 thorax is covered with rather thick soft dark brown hairs, which 

 become yellowish on the scutellum and metanotum.^ Sides of 

 thorax with yellowish hairs. Abdomen of male cylindrical, yellowish 

 brown, darker towards tip. In female shining blackish brown, 

 bare, somewhat broadened just heyond the middle. Dorsmnof 

 segments mainly rather bright ferruginous red; the extreme side 

 edges of the dorsal plates, when seen from in front, with a whitish 

 reflection on the hinder part. Belly blackish. When seen from 

 in front, there is (in the female) a whitish spot in the middle of 

 each segment, thus forming a median white stripe. ^ The hmd 

 margins of the segments are also narrowly whitish. Genitalia of 

 the male very large and complex, yellowish brown, a little pubes- 

 cent ; a dorsal, gently curved, comparatively small, oblong, darker 

 brown plate with rounded outer corners, cut away in the middle 

 of the posterior margin, the resultant inner corners being pro- 

 duced into distinct elongate black points; this plate continued 

 narrowly down the sides, where it enlarges somewhat into a small 

 oval terminal side-plate, immediately in front of the large ventral 

 plate which is V-shaped, very large, extending upwards on each 

 side of the genital chamber, thus forming large side-plates. 

 The posterior upper corners are prolonged into approximately 

 quadrate, comparatively small, black plates which meet and unite 

 (apparently) ; leaving an open space below, through which pro- 

 trudes a tiiick ])ointed plate of moderate size, with a faint dorsal 

 dividing line. The claspers are large, consisting of a strong short 

 obtuse basal joint and a second joint which is thin, broad, some- 

 what twisted, and broadly bilobed at the tip, with a small pointed, 

 apparently stiff, projection on the inner side, and in addition some 

 kind of a 'black hook. In the interior of the genital chamber can 

 he seen a pair of organs apparently with black hooked tips, and 

 in the centre a long cylindrical piece terminating in a very fine 

 filamentous penis. Ovipositor shining dark brown, lower pair of 

 valves much the shorter of the two, tips whitish. Legs compara- 

 tively short and thick, dark olive-brown, shining, with a few pale 

 yellow hairs ; femora and tibia? brownish yellow ;_a very indistinct 

 "narrow dark ring near tip of femora ; the tips of the tibiae 

 narrowly blackish ; tarsi darker. The whole of the legs, except 

 the coxaj, having a bare appearance ; a few very short hairs near 

 tips of femora, and the tibise with two strong short black spurs. 

 Win</s pale yellowish grey, costal cell distinctly yellow. _ Below 

 the subcostal cell are four black spots : the first covering just, the 

 bases of the two basal cells ; the second just beyond, confined to the 

 1st basal cell ; the third circular, confined to the 1st basal cell, and 

 placed on the origin of the prajfurca; the fourth of rather large size, 

 below the tip of the suhcostal vein, to the inside of, and also below 

 and contiguous to, the black circular stigma. Nearly all the veins 



