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Hab. Batanga, Cameroons. 

 One ?. 



The divaricate claw, and the large fovea at the end of the abdomen, would bring 

 tliis species near Beloderci iu Ijacordaire's classification. 



00. Mallonia pauper spec. nov. 



S. Head as in austi-alis (1880) Paring. Tuft of third and fourth antennal 

 segments occnpying about two-thirds of the underside, segments 5 and 6 also 

 rather densely fringed beneath, segment 4=5 + 6, segment 3 half as long again 

 as 4. Prothorax with scattered punctures above, subapical transverse groove 

 distinct as a linear channel, no tubercles on disc ; an nninterrupted greyish white 

 vitta above lateral spine, almost straight above, slightly rounded-dilated at base 

 of spine, less white centrally, bordered above and below by blackish vittae ; a brown, 

 double, rather indistinct central vitta. Elytra almost evenly punctured from base 

 to apex, subgrannlate at base, with the following brownish black lines : one upon 

 suture at base, two parallel ones beginning at base between scutellum and shoulder, 

 the inner one abbreviated, the outer one curving towards suture, which it reaches in 

 middle ; another line, longitudinal, between suture and hinder part of inner basal 

 line ; a broad line below shoulder, including here two small pale spots and curving 

 towards disc, becoming feeble above ; interspace between this line and the outer 

 basal one grey on disc; some more dark lines or linear spots in apical half. The 

 chalky white markings of the other species are represented by the following greyish 

 white spots : a trace of a spot near suture in middle, two very small linear spots 

 laterally before middle, and two small subapical discal ones, of which the outer one 

 is linear and the upper one arrowhead-shaped. Underside with dispersed large 

 ])unctures. A greyish white lateral vitta on presternum, continued as a faint stripe 

 over the meso- to the metasternum. Abdomen with a series of white side-spots, the 

 proximal spots minute, fifth triangular. 



Length, 22 mm.; elytra, 15 mm. ; breadth, 6i mm. 



Hab. Portuguese Congo. 



One ?. 



Tetraulax gen. nov. 



? . No cicatrice ; middle coxal cavity open ; claws divaricate ; midtibia excised 

 before ajiex. 



Mandible simple at end. Frons flat, broader than long. Antennal tubercles 

 widely separate, not prominent ; two short longitudinal sulci between them, united 

 at beginning of occiput by a transverse depression and then continued along eyes. 

 Eye sinuate, coarsely granulated, lower lobe higher than wide, vertical diameter 

 surpassing that of cheek. Antenna as long as body ; scape equalling segment 

 3 in length, this very little longer than 4, the following decreasing, lU the 

 shortest ; short dispersed hairs beneath. Prothorax characteristic, cylindrical, 

 without side-spine, the two pairs of transverse sulci (near base and apex) very sharply 

 impressed, disc with a fifth sulcus consisting of two arched grooves which unite iu 

 middle of disc or remain separate. Elytra convex, snbcouical, narrowing rather 

 strongly anad ; apex of each oblii]uely rounded-truncate. Prosternal process 

 evenly curved, remaining much below the level of the coxae ; mesosternal process 

 narrow, declivous ; fifth abdominal segment as long as 2 to 4 together, depressed 

 at apex, mesially canaliculate at base. Legs short, hindfemur reaching base 

 of fourth abdominal segment ; first tarsal segment about as long as third. 



