224 Miss S. L. M. Summers on Bloodsucking 



Family Tabanidae. 

 Subfamily Tabaninm. 



8. Tahanus hrevioitta, Walker. 



9. Tahanus seru^^ Walker. 



10. Tahanus cinerascens, King. 



Tliese tlnee species seem to be common. 



11. I'ahanus sp. prox. serus, Walker. 



Three females which have been stewed in their own juice, 

 and are consequently too much discoloured for description, 

 resemble T. serus very closely, but differ : (1) the antennae are 

 entirely black, while in T. serus only tiie tips are black; 

 (2) the front is much narrower and the frontal callus is of 

 quite a different shape. 



12. Tahanus elesleein, sp. n. 



13. Tahanus haduis, sp. n. 



14. Tahanus anellosus, sp. n. 



Subfamily Panqoninm. 



15. Silvius strangmani, sp. n. 



16. Silvius mansonij sp. n. 



17. Silvius alcocki, sp. n. 



Family Muscidje. 

 Subfamily Stomoxein^, 



18. Lyperosia exigua, Meijere. 



This seems to be the first record of any species of Lyperosia 

 from Australia. According to Dr. Strangman, it is known 

 locally as the buffalo-fly. 



Diagnoses of the New Species. 

 Tahanus elesteem, sp. n. 



Smallish species, length 12 mm. 



Two females. 



Face and palps hoary, covered with long white hairs; jml/is 

 a little more than half the length of the prohoscis, which is 

 black and rather slender for a Tahanus. 



