534 MISCELLANEA ENTOMOLOGICA, NO. IV. 



with broad, smooth, slightly elevated costse ; the margins are 

 narrow and reflected, a little broader and square at the shoulder, 

 the sculpture becomes obsolete at the apex. The under surface is 

 much striolated, the legs are rather slender, the tarsi long, the 

 presternum presents a prominent rounded keel along its whole 

 length. 



Long. 10 lines, lat. 5 J lines. 



Mah, — South Australia. 



28. Pteeohel^us squalidus, n. sp. 



Of a very dull opaque-black, and densely covered with minute 

 asperities all over. Form oblong, flat. Head flat, without clypeal 

 suture, clypeus broadly emarginate, eyes well apart. Thorax 

 transverse, semi- circularly emarginate in front, slightly bisinuate 

 behind and with the lateral margins broad and a little reflected. 

 Scutellum transverse and rounded behind. Elytra scarcely broader 

 than the thorax, three times the length, marked with eight distinct 

 costse consisting of prominent almost contiguous granules, the 

 intervals occupied by two very minute rows of very minute 

 punctures mixed with very minute granules, margins narrow. 

 Body beneath sub-nitid and finely punctured. Legs sub-nitid, the 

 five last joints of the antennae rather dilated. 



Long. 7 lines, lat. 3^ lines, 



^a&._ Queensland (Mr. Masters' Collection). 



This species has much the general appearance of an Aaida; it 

 perhaps should be placed in the following sub-section. 



29. Pterohel^us crenulatus, n. sp. 



Oblong, brown, sub-opaque. Head densely punctate, a little 

 emarginate in front, without clypeal suture, and a little recurved 

 at the lateral angles, eyes very transverse. Thorax transverse, 

 deeply emarginate in front, bisinuate behind, densely and minutely 



