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humerali (hac postice bifida), macula elongata communi 
suturali mediana, et macula sat parva postmediana prope 
suturam]| prosterno antennis palpis pedibus et abdominis 
lateribus apiceque ruto-testaceis ; prothorace quam longiori 
circiter duplo (postice quam antice haud multo) latiori, 
lateribus modice rotundatis, angulis anticis rotundatis pos- 
ticis distinctis obtusis; capite prothoraceque subtilissime, . 
_elytris sat crebre minus subtiliter, punctulatis; prosterno 
medio longitudinaliter anguste depresso, spatio depresso 
elongato-triangulari antice sat acuto. Long., 2 1.; lat., 1,41. 
Distinguished from all the previously-described Australian 
Rhizob, with a_ similar prosternal structure (except 
R. nigronotatus) by its elytra having well-defined markings. 
From &. nigronotatus it differs inter alia by the puncturation of 
its elytra. 
Queensland ; taken by Mr. Koebele near Toowoomba, on 
Hugenia. 
R. speculifer, sp. nov. Ovalis; sat convexus, elytris minus longe 
pone scutellum fere subgibbosis ; pallide fulvo-pubescens et 
setis erectis sparsim vestitus; rufus, prothorace plus minusve 
infuscato, elytris eneo-piceis ; prothorace quam longioril vix 
duplo (postice quam antice circiter tertia parte) latiori, 
lateribus subrectis, angulis anticis rotundatis, posticis fere 
rectis ; capite prothoraceque sat crebre vix fortiter, elytris 
sat fortiter vix crebre (quam A. litwri, Fab., paullo minus 
fortiter minus crebre, in spatio communi paullo pone 
scutellum obsolete) punctulatis ; prosterno medio longitudin- 
aliter depresso, spatio depresso triangulari utrinque carinato 
antice obtuso. Long., 12 1.; lat., 1,4, 1. 
Easily distinguished by the almost levigate common space on 
the elytra, a little behind the scutellum. 
Queensland ; taken by Mr. Koebele on Hugenia. 
k. Toowoombe, sp, nov. Ovalis; sat convexus ; pallide fulvo- 
pubescens et setis erectis sparsim vestitus ; rufo-testaceus, 
elytris eneis, prothorace nonnullis exemplis plus minusve 
infuscato ; prothorace quam longiori duplo (postice quam 
antice haud multo) latiori, lateribus vix arcuatis, angulis 
anticis rotundatis, posticis fere rectis ; corpore supra sub- 
tiliter minus crebre punctulato ; prosterno medio longitudin- 
aliter depresso, spatio depresso elongato-triangulari utrinque 
carinato antice obtuso. lLong., 1,3,1; lat. 11 
The elytral puncturation of this species is even finer than that 
of A. debilis, Blackb., from which it also differs (apart from very 
different colouring) in the sides of its flattened prosternal ridge 
