1^ 



•devoid of distinct puncturation even under a strong lens. 

 A. hcemorrlioidalis, Er., is much less narrow in form, with the 

 sides of its prothorax very much more strongly narrowed towards 

 the apex. A. nemosomoides, Westw., is a still more narrowly 

 elongate form, with the sides of its prothorax quite straight. 

 Hydrohioides^ Westw., vicinus, Cast., apicalis, MacL, are all 

 -.inte)^ alia of much less narrowly elongate form. 



Tasmania (Lake District). 

 A. creberrimus, sp. nov. Subovalis, minus angustus, minus con- 

 vexus ; minus nitidus ; supra piceus, antennis palpis pedibus 

 prothoracis basi lateribusque elytrorum lateribus et corpore 

 subtus rutescp^ntibus ; glaber ; capite creberrime ruguloso, 

 genis ut A. ipsoidis, Westw., dilatatis ; prothorace ut 

 A. ipsoidis conformato, supra sat aequaliter confertim 

 ruguloso ; elytris totis (humeris summis exceptis) crebre 

 punctulatis, puncturis suturam versus sat magnis sat rugu- 

 losis (ut A. ipsoidis) sed latera apicemque versus multo 

 minoribus, stria subsuturali manifesta ; prosterno carinato. 

 Long., 34 1.; lat., 1| l. 

 Allied to A. ipsoides, Westw., but of evidently more elongate 

 -form, with the sculpture of the pronotum very much more 

 crowded and evenly distributed and the whole surface of the 

 elytra except a very small space at the shoulders very distinctly 

 punctured. In ipsoides the front two-thirds of the inner half of 

 each elytron is strongly punctured (but much less closely than in 

 creberrimus) while the external half of each elytron (except close 

 to the lateral margin) and the apical portion are almost puncture- 

 less. Cylindricus^ Chaud., is no doubt another ally of A. ipsoides; 

 its prosternum is described as non-carinate. A. obscurus, Cast., is 

 •stated by Dr. Gestro (Ann. Mus. Gen., 1884, p. 303), on the 

 authority of Castelnau's type and a co-type from Macleay, to be 

 identical with subopacus, Macl. I have a specimen of subojKtcus, 

 Macl. (compared wdth the type), which is a much smaller insect 

 ■than creberrimus, with pilose elytra and the elytra] puncturation. 

 not interrupted even on the shoulders. 

 S. Australia (Basin of Lake Eyre). 



PROMECODERUS. 



JP. Sloanei, sp. nov. Fem. ? Elongato-ovalis ; nitidus ; niger, 

 vix senescens ; palpis antennis tarsisque vix picescentibus ; 

 capite convexo, sat sequali, labro medio longitudinaliter 

 fortiter sulcato, genis (ut P. ovipennis, SI.) subtus angulatim 

 prominentibus, menti dente medio sat acuto ; prothorace 

 convexo, quam latior fere longiori, antice et postice trans- 

 versim modice impresso, canali mediana longitudinali bene 

 definita obsolete punctulata (hac sulcos transversos attin- 



