Genus Toxorhynchites. 121 
ToxoRHYNCHITES MARSHALLII. Nn. sp. 
Thorax dark brown, with small bronzy and brown scales 
above, purplish at the sides behind and paler at the sides in 
front ; pleurae bright silvery white ; abdomen basally metallic 
blue, violet apically, with caudal tuft of black and orange ; 
preceding segment with apical white tufts; legs brown, with 
metallic reflections, hind legs with a broad distinct basal white 
band to the first tarsal; metatarsal white at the base beneath. 
6. Head covered with almost black flat scales, a few azure 
blue ones round the eye borders, most prominent just between 
the eyes; four large black bristles projecting between the eyes 

Fig. 69. 
Toxorhynchites Marshallii. n. sp. 
a, o& palp; b, base of antenna. 
in front; eyes dark; antennae rich brown, with narrow pale 
bands, basal joint black, second joint with black scales rather 
longer than the next, deep brown verticillate hairs, smaller hairs 
of paler hue below ; palpi almost black, with metallic reflections, 
