288 Records of the S.A. Museum 



somewhat .shorter, with Ihe third unci fourth joints (hiuhI, tlie black spot about 

 the sciitellum is semicircular instead of ciuadrate, and the red tips of the elytra 

 are much less pronounced. 



THALLIS ERICHSONI Crotch. 



A specimen from Sydney, the orioinal locality, and three from South Aus- 

 tralia, appear to belong to this species; two from the latter State (standing as 

 T. erichsoni in the Blackburn collection) have tlic pronotum entirely black, except 

 that along the middle the derm is obscurely diluted with red, l)ut on the other 

 from South Australia, and on the one from Sydney, the red is more conspicuousi, 

 so that the pronotum might l)e regarded as of a dingy red, with the sides widely 

 infuscated. The elytral markings, however, appear to be constant. 



THALLIS FEMORALIS Blackb. 



This species varies consideral)ly in size and in the intensity of its markings; 

 it is fairly common in Tasmania, to whicli State it ajijiears to he confined. 



THALLIS JANTHINA Er. 



This species occurs in abundance in many kinds of fungi, including Folyporus 

 saligniis, in New South Wales, Victoria, Tasmania, and South Australia. 



THALLIS COMPTA Er. 



Hah. Victoria, Tasmania, South Australia. 



THALLIS DENTIPES Blackb. 



Hah. New South Wales, Victoria, Tasmania, South Australia. 



THALLIS VENUSTULA Blackb. 



Hal). New South Wales : Forest Reefs, Dorrigo, Clarence River. 



THALLIS ALTERNATA sp. no v. 



Plate iv, tig. .5. 



Black; three fasciae on elytra, metasternum, abdomen, and tarsi reddish, 

 some other parts of legs and palpi obscurely reddish. Densely clothed with 

 dark pubescence, becoming pale on the pale parts; in addition with numerous, 

 subereet hairs. 



Head with dense and (where not concealed by pubescence) sharply defined 

 punctures. Antennae rather short, third joint slightly longer than fourth. 

 Prothorax almost twice as wide as long, sides slightly uneven ; punctures much as 

 on head. Elytra no wider than widest part of prothorax, parallel-sided to near 



