Mr. R. E. Turner on Fossorial liymenoptera< 255 



9. Thorax and median segment covered with 

 long pubescence ; abdominal fasciie 



tinged with pale gold T pilosulus, Tum^ 



Thorax and median segment not strongly 

 pubescent ; abdominal fasciae white or 

 absent 10. 



10. The whole insect, especially the abdomen, 



much flattened, dorsal surface of abdo- 

 men flat T. depressiventris, Turn, 



Normal, not flattened 11. 



11. Mesonotum and scutellum shining, highly 



polished . . , 12, 



Me.-onotum and scutellum opaque or sub- 

 opaque 14. 



12. Second joint of the flagellum longer than 



the third . T,paeificus, Turn , 



Second joint of the flagellum equal to or 

 shorter than the third 13, 



13. Seco;id joint of the flagellum equal to the 



third, pygidium compressed laterally, 



the pygidial ai-ea long and narrow .... T. pur^nator, Turn. 

 Second joint of the flagellum shorter than 

 the third, pygidium not compressed, 

 the pygidial area fairly broad T. discrepans, Turn. 



14. Median segment a little longer than the 



mesonotum 15, 



Median segment distinctly shorter than 

 the mesonotum 16. 



15. Me-sonotum distinctly and very closely 



punctured ; apical joints of the an- 

 tennae black ; second abscissa of the 



radius fully as long as the first or third. T. 7nacknye7isis, Turn. 

 Mesonotum onlj'^ micro.scopically punc- * 



tured ; apical joints of the anienure 

 fusco-ferruginous ; second abscissa of 

 the radius shorter than the first or 

 third T. tenuis, Turn. 



16. Apical tarsal joint light ferruginous ; pos- 



terior slope of the median segment 



iinnly punctured T. fortior, Turn. 



Apical tarsal joint black ; posterior slope 

 of the median segment transversely 



striated ; . . T. mhopncw. Turn. 



[( = T. debilisj Turn., nee Perez), 



Tacliijtea australis, Sauss., 1867 (nee Saussure, 1854), is 

 almost certainly a Tadnjspliex, but 1 am unable to identifj 

 it. In dealing with Australian Tacln/spJiexm a, former paper 

 (Proc. Zool. Soc. p. 491,- 1908), I mentioned a doubtful 

 record of the New Zealand species T. nigerrimus, Sm., from 

 Victoria; this is certainly a case of mistaken locality. I 

 have seen no specimens of T. truncatifrons in recent collec- 

 tions, Jind it is possible that the locality on the type at 

 Oxford is erroneous. 



