396 MR. r. W. EDWARDS ON DIPTERA 



Subfamily Geosarginse [Sargince). 

 Genus Ptecticus. 

 Ptecticus Loew, Verli. ?;ool.-bot. Ver, Wien, v. p. 142 (1855). 



8. Ptecticus atritaesis, sp. n. 



1 5 . Mimika River, July 1910. {Type of the species.) 



Head : vertex and upper part of frons shining black; face and lower part of frons 

 reddish-ochreous ; antennte reddish-ochreous, except for the arista, which is black. 

 Thorax and ahdomen uniformly reddish-ochreous. Legs uniformly reddish-ochreous, 

 except the tibiee and tarsi of the hind-legs, which are entirely black. The pubescence 

 of the whole body is of the same colour as the underlying integument. Wings slightly 

 yellowish-tinged, with dark brown veins ; the apical fourth very slightly darkened. 

 Halteres reddish-ochreous. 



Length 12 mm. 



The nearest ally of this species is apparently P. rufescens (v. d. Wulp), which 

 diifers in having darker wings and the hind tarsi largely white. 



Family Tabanid^e. 



The Tabanidse of the collection have already been recorded by Miss G. Ricardo in 

 her paper, " The Tabanidae of New Guinea " (' Nova Guinea,' ix. pp. 387-406, 1913). 

 For the sake of completeness, however, it seems desirable to include a list of the 

 species in the present paper: — 



9. Tabanus albithoeax. 



Tabanvs albithorax Ricardo, l. c. p. 391. 

 1 $ . Iwaka River, Feb. 1911. [Type of the species.) 

 Also from Alkmaar and Heuvel Bivak. 



10. Tabanus metallicus. 



Tabanus metallicus Ricardo, I. c. p. 393. 

 1 ? . Iwaka River, Feb. 1911. {Type of the species.) 

 Also from Alkmaar. 



11. Tabanus wollastoni. 



Tabanus woUastuni Ricardo, /. c. p. 395. 

 3 ? . Mimika River, July-Aug. 1910, {Type and par aty pes of the species.) 

 Also from Bivak Island, Regen Island, and Alkmaar. 



