198 Transactions. 



6. Bourne. (Mahhenus.) Quart. Jouru. Micro. Sci., vol. 36, 1894, p. 11. 



7. Bourne. (Moniligaster.) Quart. Journ. Micro. Sci., vol. 36, 1894, 



p. 307. 



8. Eisen. " Californian Eudrilidae.'' Mem. Cal. Acad. Sci., vol. 2, 1894. 



9. Michaelaen. " Die Fauna Sudwest Auatraliena : Oligochaeia." 1907. 



10. Michaelsen. Oligochaeta from India, Nepal, Ceylon, &c. Mem. Ind. 



Mus., vol. 1, 1909. 



11. Michaelsen. " Oligochaeten von verschiedener Gebieten." Mitt. a. d. 



Naturhist. Mus., vol. 27, 1910. 



Art. XXI. — New Species of New Zealand Empididae {Order Diptera). 



By David Miller. 



[Read before fKe Otago Institute, 3rd December, 1912.] 



Plate I. 



The following are descriptions of four new species of Empididae. Greneric- 

 ally they agree with the characters given by A. L. Melander in his " Mono- 

 graph of the North American Empididae," with the exception of one species, 

 Brachystoma adelensis'^ (Plate 1, fig. 2). In this fly the eyes are holoptic in 

 both the male and female, and do not approach below the antennae ; the 

 anal angle is not gone ; and connecting the 2nd and 3rd longitudinal veins 

 is a supernumerary cross-vein. The other three species belong to the genus 

 Hilara — H. kaiteriensis,^ H. philpotti, and H. benhami; the second is named 

 after Mr. A. Philpott, of Invercargill, who has generously presented to me a 

 large collection of Diptera, and the third after Dr. W. B. Benham, of the 

 Otago University, to whom I am greatly indebted for his kind assistance. 



In all cases the antennae, legs, and wings were moiTuted dry. and 

 examined under a compound microscope. 



Earn. EMPIDIDAE. 



Genus Hilara Meigeu. 



Melander, Trans. Amer. Ento. Soc, vol. 28. p. 262 (1902). 



Table of Spectes. 



Thorax with 4 browu stripes . . . . . . . . H. benhami. 



Thorax yellow, without stripes . . . . . . . . H. kaiteriensis. 



A minute grej' littoral species . . . . . . . . H. philpotti. 



Hilara benhami sp. nov. Plate 1, fig. 3. 



Head spherical, eyes bare, dichoptic, and deeply emarginate at the base 

 of the antennae. Frons greyish-brown with a central darker spot just 

 above the antennae, the orbits dark brown, and 2 rows of delicate greyish 

 and divergent fronto-orbital bristles, the outer extending from, just above 

 the antennae to a little below the ocellar triangle, the inner occupying the 

 first third of frons from the triangle (fig. 1), which is rounded and promi- 



* Captured on the mainland, opposite Adele Island, Tasman Bay. 



t At Kaiteriteri, in Tasman Bay, a large collection of Empididae was obtained. 



