Mr. F. P. Pascoe on some new Australian Longicornia. 239 
A very distinct species, readily distinguished by its uniform colour 
and the oblique emargination of the apex of the elytra. 
Mysrrosa. 
Caput antice subproductum, inter oculos plano-elevatum. Oculi magni, 
leviter emarginati. Antenne corpore vix longiores, scapo tenuiter 
ovato, articulo tertio breviore, quarto paulo longiore, czeteris longiori- 
bus et subzequalibus. Palpi cylindrici. Prothorax oblongus, lateribus 
medio nodosus. Elytra elongata, fere parallela, apice truncata. Aceta- 
bula antica late angulata. Core antice et intermedi distantes. Pedes 
subbreves; femora compressa, vix clavata. Tuarsi modice elongati, 
attenuati, -dbdomen elytris superante, in medio constrictum, apice de- 
pressum, segmentis eequalibus. 
This genus appears to be in some degree intermediate between 
Uracanthus and Bardistus, but agreeing much more closely with the 
former, although the muzzle is much shorter, and the anterior aceta- 
bula are very largely and broadly angulated. In this character, and 
to a certain extent in habit, Mystrosa resembles Bardistus ; the re- 
markable eye, however, in that genus and the contiguous anterior 
and intermediate cox will readily distinguish it. The singularly 
formed abdomen, contracted in the middle, and dilated and flattened 
at the apex, although not very considerably, is quite unparalleled, so 
far as I know, in this family. 
Mystrosa rubiginea. (PI. XI. fig. 2.) 
M. rufo-castanea, prothoracis lineis duabus obscure griseis; oculis nigris. 
Hab. South Australia, 
Reddish chestnut; head with a deeply impressed line between the 
eyes, dividing into two branches above the epistome ; prothorax longer 
than broad, apex and base of the same breadth, stoutly knotted or 
angulated at the side, a broad line of dull greyish hairs on the disk on 
each side; scutellum rounded behind ; elytra sublinear, closely punc- 
tured, with four somewhat oblique slightly elevated lines on each, the 
inner or sutural line most evident at the base, where the other three 
are less conspicuous, apex truncate, the outer angle produced ; body 
beneath dark luteous; eyes black. Length 7 lines. 
Akiptera Waterhouse. (Pl. XI. fig. 4.) 
A. nigra; elytris basi, regione scutellari excepto, facie gulaque flavescen- 
tibus; prothorace fere zequato, toto nigro. 
Hab. South Australia (Mr. Waterhouse). 
Black, with short, scattered, erect hairs, principally on the head, pro- 
thorax, and legs; head roughly punctured, with a sharp mesial line 
terminating above the epistome in a deep transverse depression ; face, 
throat, and palpi yellow; mandibles black; prothorax closely punctured, 
nodose on the disk on each side, lateral tooth produced, obtusely trian- 
VOL, II. 8 
