148 Mr. Arthur M. Lea's Revision of the 



Head scarcely visibly punctate. Antennae rather tliin ; lltli 

 joint about twice the length of 10th, compressed towards base, the 

 basal portion lobed and fitted into 10th. Prothorax twice as wide 

 as long, sides slightly dilated towards apex. Elytra with dense 

 subrngose and rather small punctures. Penultimate segment of 

 abdomen widely notched. 



Length 3 mm. 



Hah. N. S. Wales : Wentworth Falls (Aug. Simson). 



In appearance very close to pnsillus but with the 10th 

 and 11th joints distorted; hicolor is about the same size 

 but the two terminal joints are very different and the 

 antennae and legs are differently coloured. It is much 

 smaller than fiavifro7is, the antennae are thinner and the 

 tenninal joints of different shape. From one direction the 

 10th joint appears to be wider than any of the others and 

 semi circularly notched at the apex, with the inflated base 

 of the 11th fitting into the notch ; from another direction 

 it appears to be no wider than the others and the 11th 

 appears to be normally attached to it and but little longer, 

 whilst from the other direction the 11th appears to be 

 twice as long; from still another direction the 11th has a 

 faint resemblance to the helmet-like shape of that joint in 

 gagaticeps. 



Heteromastix amabilis, n. sp. 



^ . Black ; prothorax, trochanters, parts of coxae (the front pair 

 entirely) and knees flavous. 



Head longer and with more prominent eyes than usual, with a 

 wide but feeble elevation continuous between eyes ; scarcely visibly 

 punctate. Antennae extending to apex of elytra, rather thin, all 

 the joints (except the 2nd) subequal in length, but the 11th notice- 

 ably longer than 10th. ProtJwrax about once and one half as long 

 as wide, sides strongly reflexed and increasing in width to near apex, 

 disc obtusely bilobed. Elytra with dense, rather small and sub- 

 rugose punctures. Penultimate segment of abdomen semicircularly 

 excised. 



Length 4|( 9 6) mm. 



$ . Differs in being larger, the antennae shorter (though longer 

 than in many other species), the ridge between the eyes scarcely 

 traceable, and the prothorax more transverse and with its disc 

 scarcely visibly bilobed. 



Hah. N. S. Wales : National Park {A. M. Lea), Blue 

 Mountains {H. J. Carter). 



