310 



Readily distinguishable from all its congeners known o me 

 by the two teeth at the external apex of its front tibiae. These 

 teeth are larger than those on the tibiae of the other MacrourcH 

 known to me and are almost in contact with each other. 



Queensland ; Charters Towers. 



M. inermis, sp. no v. Late ovalis ; sat nitida ; fulvo-pubesoens ; 

 nigra, antennis pedibusque rufis ; capite subfortiter (maris 

 quam femin^e minus crebre), pronoto crebre subtilius (quam 

 praecedentis, M. bicalcaratre, haud multo aliter) punctulatis; 

 prothorace fortiter transverso, antice angustato, lateribus 

 arcuatis, angulis posticis superne visis subacutis retrorsum 

 inclinatis, a latere visis sat rectis ; elytris sat aequaliter 

 minus confertim punctulato-striatis, interstitiis planis nitidis 

 minus angustis subrugulosis ; tibiis anticis inermibus. 

 Long., U— U 1.; lat., iV— * 1. 

 At once separated from its congeners known to me by its un- 

 armed front tibiae, their extero-apical angle being simply acute 

 (scarcely prominent). The scratch-like striae of its elytra are 

 less numerous (there are about 20 of them on each elytron) than 

 in any other Macroura known to me except deceptor, Blackb., 

 and they are better defined and more evenly punctulate than in 

 any of its congeners that I have seen. 



Queensland, Cairns ; given to me by Mr. Koebele. 



CRYPTARCHA. 



C. obscurior, sp. nov. Ovata ; minus convexa ; sat nitida ; 

 pubescens ; ferruginea, pronoti disco et elytrorum sutura 

 antice late infuscatis, macula indeterminata infuscata 

 sublaterali in elytris posita ; capite pronotoque crebre sub- 

 fortiter punctulatis ; prothorace transverso, antice angustato, 

 lateribus arcuatis, margine antico emarginato ; elytris sat 

 ^qualiter punctulato-striatis, interstitiis planis, sutura 

 (nisi juxta apicem) haud elevatis. Long., HI; lat., f 1. 

 Probably variable in respect of colour and markings. Allied 

 to C. depressa, Grouv., from which it differs inter alia mrdta by 

 the entire absence of any inequality on the pronotum, by the 

 interstices of its elytra all absolutely flat, by the suture of its 

 elytra perfectly flat (except close to the apex) and by the striae 

 of its elytra very much more evenly impressed {e.g., the fourth 

 stria not inclined obliquely towards the suture till quite near its 

 apex). The only irregularity in the striation consists in the 

 two striae next the suture on each elytron being subobsolete and 

 represented by little more than their punctures, the seriation of 

 which is somewhat disturbed and runs into a single line con- 

 siderably before the apex ; the third stria is traceable almost to 



