INSECUTOR INSCITI^ MKNSTRUUS 155 



NEW AUSTRALIAN EUSANDALUM 



{Hymenoptera, Encyrtidae) 



By a. a. GIRAULT 



The following new species were collected from the trunks 

 of trees, and the descriptions are based upon careful compari- 

 sons, only the differentials therefore given. In my experience, 

 in any piece of forest, only certain trees are visited by these 

 Chalcids, dead ones and at the same time infested with beetles 

 whose larvae bore in the wood. On such trees, the flies may 

 be seen as isolated examples, crawling over the surface, facing 

 anyone or anything that approaches and prepared to launch 

 into the air if alarmed. As they perhaps spend all or most of 

 their adult life upon these host trees or near them, this ac- 

 counts for the small number of species so far known and for 

 the few I have been able so far to collect (by sweeping mostly). 



r ought to say that a new country should make every effort 

 to explore its fauna before settlement and commerce destroy 

 or change it, and in regard to this portion of Australia's original 

 population, I consider that Mr. A. P. Dodd, by his special 

 eff'orts, has succeeded in saving for science many forms which 

 in the course of not many more years would most likely have 

 become extinct and therefore wholly lost. This is not the first 

 time I have received from him specimens never met with by 

 myself and likely, but for his eff'orts, to have been lost forever. 



Eusandalum arboris, new species. 



As cyaniventris Girault but ciliation of fore wing distinct, 

 rather coarse; costal cell with several lines of cilia, at least 

 distad, setae of marginal vein minute, numerous ; fringes pres- 

 ent ; legs reddish save coxae and femur 1 at distal third laterad ; 

 stigmal neck long. Coppery ; robust. 



Wynnum, southern Queensland, two females, November. 



Eusandalum brevistylus, new species. 



As arboris but ovipositor still shorter, body half smaller, legs 

 red save coxae, f rons with a slight median impression ; stylus 



