BY EUSTACE W. FERGUSON. 



27 



Posterior tarsi with first joint elongate and comparatively slender. 

 Middle and posterior tibiae simple. 



Intermediate ventral segments strongly strigose echidna Macl. 



Intermediate segments setigero-punctate, but not strigose. 



Antennae with joints of funicle elongate; club with slender peduncle. 



Narrow elongate species (c?) ; strongly mucronate posteriorly (5). 



iniicronatus Macl. 

 Relatively stouter species (c?l ; briefly mucronate (S'- Ciiiinatus Gutr .'>. 

 Antennae with joints less elongate; club briefly or not pedunculate. 



Crests with deep notch between Jrami .\/>;;/?/£';- Macl. 



Crests with shallow notch between rami. 



Mandibles transversely rugose beyond inner smooth margin. 



sordidiis, n.sp. 

 ilandibles more closely and not transversely punctured. 



siMi-idcnlatus, n.sp. 

 Intermediate tibiae notched, posterior tibiae with a flange-like process 



on inner side of apex Si-abrosiis '^a.cl. 



Supraorbital crests distinctly triramate /i-idi-ti/ants Macl. 



Supraorbital crests apparently single (division between branches occa- 

 sionally indicated in individual specimens) . 

 Elongate, narrow species. 



Tubercles low and obtuse alpicola Ferg. 



Tubercles distinct and conical tusinanietisis hea.. 



Shorter, relatively broader species (//_ro«7 Ferg. 



Supraorbital crests arising from a narrow base, erect, feebly notched at 



apex. 



Prothoracic tubercles flattened; intermediate tibiae notched. 



foveirostris Lea . 

 Prothoracic tubercles rounded; intermediate tibiae simple. 



sgualidus Macl. 

 Apical ventral segment antero-posteriorly convex, the posterior slope 



slightly transversely flattened ^.adtiaidae-z^o\iv) . 



Prothorax with apical tubercles of submedian row not strongly crista- 



form. 



Supraorbital crests feebly or not bidentate. 



Short species, with fewer elytral tubercles adelaidae Waterh. 



Elongate species with relatively narrower prothorax, and more numerous 



elytral tubercles angits/icollis Ver^. 



Supraorbital crests distinctly branched /lahnaturiniis Ferg. 



Prothorax with anterior tubercles of submedian rows strongly cristaform. 



gravicollis Macl. 

 Apical tubercle of second elytral row anterior to apical tubercle of first 



j-ow {stju.iinosus gTou'p) . 



Intermediate tibiae simple. 



Apical tubercle of first row the largest .s(;«rt;«ojr«i Macl. 



Penultimate tubercle of first row the largest nanus n.sp. 



Intermediate tibiae with strong Subapical notch. .. parvidiis, n.sp. 

 Lateral prothoracic tubercles more or less spiniform. (Spinose species). 

 Supraorbital crests composed of- two separate tubercles or spines, the 

 intercristal ridge connecting the anterior pair. 



Posterior tibiae with a strong forward projecting process at apex. 

 Spines on head, prothorax and elytra long and acute kre_ff/iMzd. 



*Two species have been incorrectly included here. ^. kreff/i has the crests deeply 

 livided, but the two branches hardly arise separately; in W. doddi the branches 

 are united for a considerable distance. In the Table both species should come 

 before A. tatei, etc., from which they can be separated by the tibial structure. 



49 (12 



