49 8 COLEOPTERA 



very well marked dorsal line. Elytra coarsely but not deeply punctured 

 in rows. Legs robust, setose ; all the femora distinctly dentate ; the 

 tibiae flexuose ; the penultimate tarsal joint expanded. 



The insect is almost precisely similar to the preceding one in form 

 and structure, being broadly oval, but the hind-body is scarcely inflexed 

 behind so that the whole contour is easily perceptible. 



The squamosity being rather dense causes the insect at first sight to 

 appear ferruginous. 



Length (rost. incl.), if ; breadth, i line. 



I found one example at Pataua, near Whangarei Harbour. 



Tychanus. 



Pascoe; Ann. Mag. Nat. Hist., July, 1876. 



Acalli vicinum, sed prothorace basi bisinuato, et scutello manifesto. 

 Rostrum tenuatum. Antenna in medio rostri insertse. Elytra callosa, 

 prothorace basi haud latiora. Femora infra dentata. 



It would perhaps be difficult to define Acalles very strictly, the 

 species showing so many structural modifications ; but it is quite certain 

 that such a character as the prothorax presents in the present genus may 

 be advantageously used in facilitating the systematic location of the 

 numerous species, mostly small and dull-coloured, which centre round 

 Tragopus, from which Acalles itself is but little removed. 



88 5- T. gibbllS, Pascoe; Ann. Mag. Nat. Hist., July, 1876. 2. 

 breviusculus, fuscus, sat dense griseo-squamosus ; rostro modice arcuato, 

 prothorace vix breviore ; funiculo articulis duobus basalibus elongatis ; 

 prothorace utrinque pone apicem fortiter calloso, apice ipso constricto, et 

 supra bifasciculato ; elytris apicem versus gradatim latioribus, fere a 

 medio declivibus, dorso elevato, bicristato, lateribus fortiter carinatis, 

 sulcato-punctatis, punctis paucis ampliatis, parte declivi dilutiore ; 

 femoribus infra dente parvulo instructis. 



Long., 4 lin. 



Tairua (Capt. Broun). 



The elytra in this species, as well as in the two following, are a little 

 produced at the apex ; and this being rounded gives, in conjunction 

 with the abruptly terminating sides, a trilobed character to their poste- 

 rior portion. 



886. T. ferrugatllS, Pascoe; Ann. Mag. Nat. Hist., July, 1876. 

 T. perbrevis, fuscus, griseo ferrugineoque squamosus ; rostro gracili, 

 haud arcuato, prothorace breviore ; funiculo articulis duobus basalibus 

 haud elongatis ; prothorace valde transverso, pone apicem elevato, apice 

 ipso valde constricto ; elytris sub-parallelis, modice convexis, rugosis, 

 postice declivibus, apicibus utrinque callosis ; femoribus infra dente 

 determinate armatis. 



Long., 3^ lin. 



Tairua (Capt. Broun). 



