400 ME. F. W. EDWAEDS ON DIPTEEA 



male and not conspicuous ; inner surface of distal two-thirds of front tibiae in both sexes 

 clothed with short, glistening, ochre-yellow, felt-like hairs, passing into dark chestnut- 

 brown hairs at the tips of the tibis ; claws black in both sexes ; pulvilli ochraceous. 

 1 cJ , 1 2 . Utakwa River, 2500-3000 ft., Feb. 1913. {Types of the species.) 



1 c? , 1 ? . Mimika River, July- Aug. 1910. (Paratypes.) 



A third female in the National Collection, from Dorey, North-West New Guinea 

 [A. B. Wallace), has the dorsum of the thorax more bluish and the tergites of the third 

 and following abdominal segments more bluish-purple ; while on the thorax the whitish, 

 shimmering pollinose, cuneate markings, extending backwards from the humeral calli, 

 have their extremities somewhat attenuated and produced until they distinctly reach 

 the transverse suture — otherwise there appears to be no material difference from what 

 is regarded above as the typical form. 



[Additional specimens : 1 d. Utakwa River, March 1913. 



2 $ . Base Camp, sea-level, Setakwa River, Nov.-Dec. 1912. 



The species is evidently extremely closely allied to M. spectahilis Guerin and 

 M. longicornis de Meijere. — F. W. -E.] 



19. Maira socia. 



Laphria socia Walker, Journ. Proc. Lina. Soc. London, iii. p. 84 (1859). 

 1 6 . Mimika River, July 1910. 



This single example appears to belong to this species, which was described from a 

 male from the Aru Islands. 



[Additional specimens : 2 d . Utakwa River, 2500-3000 ft., Feb. 1913. 

 1 6 . Base Camp, sea-level, Setakwa River, Nov.-Dec. 1912. — F. W. E.] 



20. Maika ^nea. 



Laphria anea Fabricius, Systema Antliatorum, p. 161. 23 (1805). 



3 J , 3 $ . Mimika River, July 1910. 



1 d . Utakwa River, 2500-3000 ft., Feb. 1913. 



[Additional specimens : 6 d . Base Camp, sea-level, Setakwa River, Nov.-Dec. 

 1912.— i^. W. E.'] 



21. Maiea, sp. inc. 



1 d , 1 ? . Utakwa River, 2500-3000 ft,, Feb. 1913. 



Two very immature specimens, about 14 mm. in length. The male has no black 

 bristles in the mystax, while the female has three such bristles on each side, but this 

 discrepancy is doubtless due to the greater immaturity of the male. 



22. Maira kitida, sp. n. 



d . Length (1 specimen) 16-5 mm. ; width of head 4 mm. ; length of wing just 

 under 12 mm. 



