36 



oblique, altera sat transversim, posita) pone medium lineam- 

 fortiter contortam (hac quam line?e ceterse magis perspicua)- 

 ferentibus, fortiter sat crebre punctulatis ; antennis 12- 

 articulatis. 

 Maris antennis quam corpus multo (feminse paullo) longioribus. 



Long., 5—7 L; lat., 2—3 1. 

 Distinct from previously described species by inter alia the 

 rugulosities of the elytra. These organs present an unusually 

 coarse appearance owing to the interstices of the punctures being 

 much raised and here and there running together into transverse 

 or oblique wrinkles among which the longitudinal costulas (usual 

 in the genus) are little apparent. Within and behind the 

 humeral callus is an oblique crest ; close to it but not touching 

 it (and nearer to the suture) is another similar one placed more 

 transversely. These crests are not pilose and have a sharply 

 carina-like contour. About the summit of the posterior declivity 

 an elevated line leaves the suture and runs obliquely forward 

 and away from the suture till it reaches the inner one of the 

 longitudinal cestui ae where it turns at a sharp angle and runs 

 obliquely hindward a short distance and then turning again runs 

 obliquely forward to the external one of the longitudinal in which it 

 loses itself. These crests and lines are blackish and form the darkest 

 part of the elytra. There are no defined pubescent markings on the 

 upper surface, pale and dark pubescence (with a preponderance 

 of the latter) shading off into each other in a variable manner. 

 The under-surface and legs are piceous more or less reticulated 

 with pale pubescence. Joints 3 — 12 of the antennpe are cinereo- 

 pubescent at the base with the apex dark (successively less widely 

 dark, joint by joint). 

 N.W. Australia. 



ZYGOCERA. 



Z. concinna, sp. nov. Nigro-picea, labro palpisque testaceis ; 

 pube cinerea nigraque variegata, hac fasciam postmedianam 

 flexuosam formanti ; capite cinereo-villoso, postice nigro-4- 

 maculato ; antennis quam corpus multo longioribus, articulo 

 3° quam 1"* 2 que conjuncti paullo longiori, articulis 3° ad 

 apicem et 4° — 11" ad basin apicemque albidis; oculorum lobo 

 inferiori fere ut Z. hifasciatcd, Pasc. (i.e., sat magno sat late 

 ovali minus oblique posito) sed paullo magis subtiliter granu- 

 lato; prothorace transversim trisulcato, haud nigro-lineato 

 sed maculis nonnullis nigris ornato, fortiter transverso, 

 utrinque ante basin tuberculo sat conspicuo et ad latus 

 tuberculo magno acuto (quam Z. hifasciatm majori magis 

 acuto) armato ; elytris ad basin tuberculo sat magno nigro 

 armatis, in disco manifesto bicostulatis, ad apicem emargin- 

 atis et bispinosis, cinereo-pubescentibus, pube nigra macu- 



