IfY <:. H. HARDY. 31 



antenna! triangles, the former is black and the latter is 

 covered with yellowish tomentum and pubescence; the 

 antennae are short, consisting of two equal basal joints, and 

 the third is as long as the two basal joints united; the 

 face recedes and has yellow tomentum and lateral pub; s- 

 cence. The thorax and the base of the scutellum are black 

 with the shoulder spots and apical margin of the scutellum 

 yellowish, the latter markings ( xtend on to the thorax ; 

 no other markings are perceptible ; the pubescence i- yel 

 low and (1 pressi d. The abdomi n is black-brown with 

 yellow pubescence. The legs are yellowish, stained with 

 black on the tibiae and tarsi. The wings are light grey, a 

 little darker along the anterior half. 



Female. Thf bead is black and the eyes are widely 

 separated j the antennae are similar tc those of the male, 

 but the third joint is a little Longer than the basal joints 

 united. The thorax is black, similar to the male, but with 

 the markings more extendi d and ah< wing tenden< i 9 to ap- 

 proach those of Xenomorpha mistral is, Macquart describ 

 ed lu low. The scutellum is yellow. The abdomen is 

 black with the apex of most of the - gments bordered con- 

 spicuously blown. The legs have the base of tin segments 

 yellowish, otherwise they are much stained with fuscous. 



Length. Male 5-6 mm.; female 10 mm. 



Hob. — Tasmania: Cradle Mountain, 13 males and 10 

 females, January, 1917; Wynyard, 1 male, 2nd February, 

 1916; Mt. Wellington, 1 male, 9th January, 1919. 



A ote. — The resemblance of this species to Xi 

 morpha australis, Macquart, is remarkable; few points 

 other than that of v< nation can be found to separate them. 



Genus XENOMOBPHA, Macquart. 



Xenomorpha, Macquart, Dipt. Exot. i. 1. 1838, p. 193; 

 and i. 'J. L839, p. 190. 



Metoponia, White (nee Macquart), P.L.S. N.S.W., xli., 

 1916, p. 74. 



Type. — Xenomorpha leptiformis, Macquart; Brazil. 



Synonymy. — White mistook the characters of the 

 genus Metoponia, stating that it has tour posterior veins, 

 and thus h • treated Xenomorpha as a synonym of it. 



Characters. — Until the study of the species of the 

 world is undertaken it seems advisable to keep Xenomorpha 

 as a generic name for the Australian species of Beridince 

 with four posterior veins and without scutellar spines. 



