Nepharis and other Ants Nest Beetles. 383 



convex behind ; eleventh narrower than tenth, and with its 

 sides rounded and slighth' converoing towards apex. Prothorax 

 distinctly londitudinally and obliquely strigose, with a large 

 foveate, submedian impression in the middle of a transverse 

 depression ; each side bidentate, the front tooth very acute and 

 almost median, the hind very obtuse and at the other side of 

 the depression. Elytra closely applied to prothorax, and at 

 base very little wider than the base of that segment, widest 

 before the middle ; strongly convex, sides and apex rounded ; 

 seriate punctate, the punctures sub-oblong and distinct but 

 small, the interstices with feeble seriate rows of sparser and 

 smaller punctures ; surface with very indistinct but rather 

 numerous transverse wrinkles. Abdomen densely, longitudinally 

 strigose, with irregular transverse series of not very small 

 punctures. Length, 2-3 mm. 



Hab. — Birchip. In the nests of Iridomyrmex nitidus and 

 Crematogaster laeviceps. 



This is one of the most interesting insects I have seen. From 

 the side, the fourth-eleventli joints of antennae appear thin 

 but moderately inflated in the middle, so as to have a certain 

 resemblance to the seed pods of certain species of Acacia. In 

 some lights their margins seem to be very finely serrated, but 

 this appearance may be deceptive. The transverse depression 

 of the prothorax divides that segment into two parts, of which 

 the basal is not quite half the size of the apical, and is on a 

 lower level. The regular convexity of the elytra is not inter- 

 rupted by striae. Some specimens, presumablv the females, are 

 larger and wider than others ; but there are no distinct external 

 features to be noted as sexual. 



Tenebrionidae. 



Tribolium mypmecophilum, n. sp.^ 



Comparatively broad, chestnut-brown, slightly shining, 

 glabrous. 



1 A specimen of this species was sent to Mr. G. C. Champion for his opinion ; of it he 

 wrote : — " Your Tribolium is allied to T. coni'usum which has the antennal joints becoming 

 gradually wider, but jour species is larger, etc. , and has a smaller apical joint. T. 

 ferrugineum has a well-defined three-jointed club." There are numerous specimens of 

 this species in the King collection that were probably taken in ants' nests near Liverpool. 



