53 



Cryptobium kershawi, n. sp. 



9 . Reddish-brown, elytra and two apical segments of abdomen blackish, 

 most of femora flavous, trochanters and tarsi redder, rest of legs deeply infus- 

 cated. Prothorax and elytra glabrous, except for short and sparse clothing at 

 sides, rest of upper-surface finely pubescent. 



Head rather elongate, sides behind eyes rather strongly rounded and deeply 

 constricted at neck, two subf oveate impressions between antennary ridges ; with 

 crowded and not very large but sharply-defined punctures. Mandibles long and 

 acute, a large compound tooth about the middle. Antennae moderately stout, 

 first joint almost as long as five following combined, ninth and tenth scarcely 

 longer than wide. Prothorax much longer than wide, widest at about apical 

 third, sides thence strongly rounded to apex, and gently narrowed (with a slight 

 incurvature) to base, hind angles almost rectangular; with coarse irregularly 

 crowded punctures, leaving a distinct median line, but this with minute punc- 

 tures. Elytra much wider than prothorax and slightly longer, with strong 

 crowded punctures, a few of which are transversely confluent. Abdomen with 

 crowded subrugose punctures, smaller than on any other portion of upper- 

 surface, and slightly smaller than on its under-surf ace ; anal styles long. 

 Length, 9.25 mm. 



Hah. — Queensland: Claudie River (J. A. Kershaw). Type (unique), in 

 National Museum. 



In size and general appearance this beautiful species is fairly close to 

 C. sangninicolle, but head paler and antennae stouter, elytra with coarser 

 punctures, the prothorax with coarser and denser ones, leaving much less of the 

 middle impunctate ; the punctures on each side of the median line are so large 

 and close together that it appears to be a slightly elevated ridge. The head is 

 subopaque, the rest of the upper-surface highly polished. The left mandible 

 has three acute projections forming a tricuspidate tooth, the right one has but 

 two projections, of these, however, the posterior one is stouter and less acutely 

 pointed than the other. 



Cryptobium nitidicolle, n. sp. 

 9 ■ Black, under-surf ace blackish-brown, mandibles and legs brownish-red, 

 antennae somewhat darker, palpi paler. Head, sides of prothorax and of elytra, 

 sides and tip of abdomen with straggling dark hairs ; head, elytra, and abdomen 

 rather densely pubescent. 



Head rather long; with dense and small but sharply-defined punctures, 

 rather larger in front of eyes than elsewhere, but becoming smaller on clypeus. 

 Mandibles long, strong, and acute, each about middle with an acutely tricuspidate 

 tooth. Antennae with joints proportioned as in preceding species. Prothorax 

 subcylindrical, distinctly longer than wide, front angles rather strongly rounded 

 off, the hind ones less strongly ; with dense and rather large punctures, leaving 

 a polished median line. Elytra slightly longer than prothorax and much 

 wider ; with crowded but sharply-defined punctures. Abdomen with punctures 

 somewhat as on base of head; anal styles long. Length, 11.5 mm. 



Hah. — Northern Territory: Oenpelli (P. Cahill). Type (unique), in 

 National Museum. 



Allied to the preceding species, but more densely clothed, larger and more 

 robust, head, abdomen, and legs darker, and head, prothorax, and elytra with 

 smaller punctures ; structurally it is fairly close to C. mastersi and C. 

 sanguinicolle, but the prothorax is entirely dark and legs nowhere flavous. The 

 prothorax is glabrous, except at the sides, and in consequence appears more 

 highly polished than the rest of the upper-surface. 



