Aiisti-dl i<ni avd Tasmanian Coleoptera. 209 



in front. FrotlKira^c about as long' as greatest width, base and 

 apex subtruncate, base slightly wider than apex ; margins flat- 

 tened and strongly serrated ; with dense, strong punctures. 

 ScuttJluni minute. Eh/tra very little wider than prothorax, 

 almost p<irallel-sided to l)eyond the middle, apex strongly 

 notched, sides with rather narrow flattened margins ; regularly 

 (except that the alternate interstices are sometimes feebly raised) 

 cancellate-punctate, in about ten rows, the punctures of almost 

 even size throughout. U nchr xiirfdcf with punctures as on pro- 

 thorax. Femora very stout ; tibiae rather thin but somewhat 

 inflated at apex ; tarsi thin. Length 2 2-3rd mm. 



Hah. — Victoria: Geelong — in a nest of Iridoniyriiier nitidus 

 (H. W. Davey). 



Tlie antennae are short and indistinctly jointed much as in 

 goudiei, so that if it becomes necessary to regard that species 

 as belonging to a new genus, this species should be associated 

 with it. From goudiei however, it dift'ers in being longer and 

 almost twice as wide, with the head of difi'erent shape and eyes 

 larger. It has no projecting submentum as in rostafa. 



On the type there are thirteen teeth of almost equal size on 

 one side of the prothorax, and fourteen on the other. 



Ditoma villosa, n.sp. (Fig. 23.) 



Dingy reddish brown, under surface and appendages paler. 

 With numerous long straggling yellowish hairs ; under surface 

 pubescent. 



Head densely and coarsely punctate, with two feeble tubercles 

 in middle, shallowly depressed between antennae and strongly 

 raised above each antenna, the distance between the tips of the 

 raised parts equal to, or slightly greater than, that between the 

 outer margins of the eyes. Antennae about as long as greatest 

 width of head, first joint entirely concealed from above, second 

 slightly longer than third, but from above appearing somewhat 

 shorter ; tenth joint slightly larger than eleventh, the two 

 forming a club. Pruihorax at its greatest width about twice as 

 wide as the length down middle, densely granulate, sides 

 strongly serrated or denticulated ; the front angles strongly 



produced, and also serrated externally. Elytra with margins. 



If) 



