216 Miss G. Ricardo on Tabauldse/rom 



Silvius montanus, ? , sp. n. 



Type (female) and another from Mt. Tambourine_, 

 Queensland {A. M. Lea). 



The type is in the South Australian Museum. 



A blackish-brown species vvitli yellowish segmentations 

 on abdomen and traces of median yellow spots. Antennae 

 reddish yellow. Legs blackish brown, some of the tibise 

 yellowish. 



Length 10 ram. 



Face covered with greyish tomentum and with yellowish 

 tomentum near the eyes; pubescence consists of long blackish 

 hairs. Beard whitish. Palpi stout, covered with grey to- 

 mentum and with black pubescence, yellowish at extreme 

 base. Antenn<2 with the first joint greyish, covered with 

 black hairs, the second yellow with black hairs, the third 

 reddish brown^ apex black. Forehead broader anteriorly, 

 covered with yellowish-brown tomentum, brown in the 

 centre ; the frontal callus elongate, apparently broader near 

 the vertex; forehead covered with black hairs; ocelli distinct. 

 Eyes bare. Thorax reddish brown with two grey stripes, 

 most distinct anteriorly, covered with greyish-yellow hairs 

 and with black pubescence intermixed, and longer black 

 hairs at sides. Scutellum brown, with black hairs. Abdo- 

 men brown ; the segmentations widely pale yellow, with 

 white hairs, which form median spots ; pubescence black ; 

 liairs at sides chiefly white ; underside blackish, with whitC" 

 haired bands. Leijs blackish, the fore and raid tibiae ob- 

 scurely yellowish, the hind tibiae reddish brown ; pubescence 

 on legs black. Wiiigs greyish, the transverse veins shaded, 

 the other ones faintly shaded; no appendix ; stigma yelr 

 lowish ; veins brown. 



Silvius insularis, ? , sp. n, 



Type (female) and another from Bathurst Island, N, 

 Territory. 



The type is in the South Australian Museum. 



A small narrow blackish-brown species, with a greyish 

 tomentose stripe on abdomen ; legs pale yellow, the femora 

 darker. Palpi long, narrow, with truncated tips. 



Length 10 ram. 



Face reddish, covered with grey tomentum, and w'ith some 

 short white hairs. Palpi yellowish, with black hairs. Aiit 

 tenna yellowish, the first two joints with black hairs, the 

 third wide at its base. Forehead almost parallel; frontal 



