BY <!. n. HARDY. 541 



the metanotuni, whioh is also depressed hut wrinkled, and separates the scutellum 

 from the abdomen . Laterally tlie thorax is normal, and ventrally it is almost 

 entirely concealed by the coxae. The wings and halteres are obsolete, but there 

 are minute prominences indicating the position where these appendages should be. 



The abdomen normally is large and distended, but in some specimens it is 

 shrivelled and no larger than that of the head and thorax combined. There are 

 four distended segments followed by three elongate narrow segments, at the 

 apex of which the ovipositor (the eighth segment) protrudes and contains a pair 

 of cerci. In all the specimens the abdomen shows tendencies to shrivel, an(i 

 in some specimens dark bands are to be seen on the three basal segments and 

 dark longitudiral stripes on the apical segments. In the holotype the apex of 

 the first dorsal segment has a thin transverse apical band, the second and tliird 

 segments have a broader central band and the fourth to seventh segments have a 

 pair of black stripes. The ventre has tracings of corresponding bands and 

 stripes more or less visible; in dark specimens these markings are more or less 

 obliterated . 



The legs are long and have fiieir anterior coxae very broad, covering half 

 the lengih on the ventral side and almost touching the intermediate coxae which 

 are normal. The posterior coxae are situated at the distance of their own width 

 from the intermediate coxae and are normal ; the legs contain a minute pubes- 

 cence. 



Length.— d. 8-10 mm.; 5 15-25 mm. 



Hah. — There are 35 d" and 24 2 from New South Wales and Victoria. Vic- 

 toria : the labelled specimens invariably indicate May as the month of occur- 

 rence and the localities are Western District, Myer's Creek, Brigiiton, Mordialloc 

 and Portland; and Mount Buifalo, males only, taken by Miss Irwin Smith, 19th 

 February, 192(1. New South Wales specimens are from Mount Kosciusko, females 

 only, taken by Dr. E. W. Ferguson, February, 1920; females from Bago Forest, 

 in the Australian Museum, taken by ('. Kosegger; and males labelled Moonbar 

 and Kosciusko, 3000ft , taken by Helms in March, 1889, are also in the Australian 

 Museum. Tasmania: specimens from this State taken on the summit of Mt. 

 Wellington, and one taken by Mr. ('. E. Cole near Bellerive, Hobart, im- 

 dqubtedly belong to this species, but unfortunately they are not available for 

 study at the tir.ie of writing this paper, 



Ti/pe. — The holotype ? and the allotype c? are in the National Museum, Mel- 

 l)ourne; paratypes will be found in various collections, including that of the 

 Australian Museum , 



Genus A L L o G N o s T A Ostcn-Sacken. 



Metoponia. Loew, nee Macquart. Dipt. Faun. Sud. Afr., i., I860, p. 1. 

 Allognosta, Osten-Sacken, Berl. Ent. Zeit., xxvii., 1883, p. 297; Bezzi, Deut. Ent. 



Zeit., 1908. p. 470; Coquillett. Proc. U.S. Nat. Mus., xxxvii., 1910, p. ,505; 



Brunetti. Faun. Brit. Ind., Dipt. Braehy., i., 1920, p. 93. 

 Anacanthoheris, Brunetti. Ree. Ind. Mus., vii,, 1912, p. 45(i. 



Characters. — A definition of this genus has been published by Brunetti, 1920, 

 who, apparently, based it on the two species known to him. The illustration 

 given by Brunetti in the same work represents A. vagans Loew, and the figure of 

 the antennae shows the third joint to be four times the length, of the second; 

 both the figure and the description give eight annulations to the third .joint. The 

 abdomen of the male is shown to be considerably wider than the thorax, but the 



