275 



swollen basal portion. Mr. W. D. Dodd obtained six 

 specimens, in company with a friend who also obtained one, 

 and sent it to the Western Australian Museum. Very few 

 species of beetles have been obtained from nests of white ants 

 in Australia, but such as have been are nearly all of excep- 

 tional interest. 



LUCANIDAE. 



LlSSAPTERUS TETROPS, 11. sp. 



S . Black, parts of legs and of antennae obscurely 

 diluted with red. 



Head very wide, each side bilobed, the posterior lobe with 

 coarse, crowded punctures, sides about base with large round 

 punctures, elsewhere smooth and impunctate; each eye 

 completely divided by the canthus and distant about its own 

 diameter from the side. Mandibles strongly arched, when 

 clenched enclosing a space about one-third the size of head, 

 tips obtusely pointed, inner-side about middle obtusely 

 bicuspidate. Three apical joints of antennae wider, but of 

 much the same shape as the preceding ones. Prothorax 

 almost twice as wide as long, sides increasing in width, from 

 base to near apex, front angles produced and slightly 

 rounded ; sides channelled and with numerous fairly large 

 punctures, somewhat similar punctures about base, elsewhere 

 with sparse and minute ones. Sent ell inn smooth, with a few 

 punctures. Elytra the width of prothorax at base, from 

 about middle rounded ; with punctures at extreme base, on 

 margins and on apical slope, elsewhere impunctate or almost 

 so. Front femora with a narrow ridge ending in an obtuse 

 tooth; front tibiae with two strong teeth, and from three to 

 six smaller ones, the other tibiae acutely dentate about middle 

 and apex. Length (including mandibles), 24-30 (9* 23-24) 

 mm. 



9 • Differs in having the head much smaller, with a 

 greater portion of each side coarsely punctured, mandibles 

 much shorter, with coarse punctures on upper-surface, j^ro- 

 thorax with sides Jess dilated to near apex, front tibiae with 

 fewer and smaller teeth and hind tibiae not dentate at apex 

 (although the apical spurs are as long as those of the male). 



Hab. — "New South Wales: Barrington Tops, under logs 

 at an elevation of 4,800 feet (H. J. Carter, A. Musgrave, and 

 T. G. Sloane). Type, I. 5770 (co-type, K. 37,719 of Aus- 

 tralian Museum). 



The male differs from the male of howittanus in being 

 less convex, in the very different forehead (this being smooth 

 and gently depressed in the middle instead of overhanging), 

 each side of head bilobed (instead of trilobed), and the 



