NOTES AND OBSERVATIONS. 165 



knee spot creamy; tibia entirely black- scaled, with four lines of short 

 white spines running down its whole length ; metatarsus basally 

 banded ; first two tarsal joints very broadly basally banded with 

 creamy white. Ungues equal and simple. Metanotum dark chestnut- 

 brown. Halteres with black-scaled stems and white-scaled knobs. 

 Abdomen black-scaled ; a few white scales at the bases of the segments 

 after the second, but scarcely amounting to basal banding in some 

 specimens ; laterally there are triangular patches of white scales, and 

 ventrally the segments are basally banded white. 



" (3^ . Head as in the female ; the antennas have pale internodes 

 and dark nodes ; tlie two last joints are very long ; verticillate hairs 

 long and black ; palpi about four-fifths the length of the proboscis, 

 dirty white, black-scaled ; a naked area in the middle of second joint 

 which shows white under a lens ; white scales, which may or may not 

 form a complete band, at the apex of the second and third joints ; 

 these scales may involve both sides of the joint — they are variable. 

 Proboscis long, black-scaled, with a narrow band of white scales about 

 its centre. The thoracic scaling is the same as in the female, and the 

 leg scaling also. Wing scaling similar but not so heavy. Abdominal 

 banding more marked, all the segments showing fairly broad basal 

 white bands and large lateral spots. The penultimate segment shows 

 a dorsal patch of white scales with a pearly lustre. The fore and mid 

 ungues large, unequal, larger tooth biserrate. Length, female, 5 mm. ; 

 male, 4 mm." 



Time of capture. — April. 

 Habitat. — Kuala Lumpur. 



(To be continued.) 



NOTES AND OBSERVATIONS. 



British Diptera Wanted. — I should be much obliged if anybody 

 would send me fresh or recent specimens, for examination and descrip- 

 tion, of : — 



Xylomyia varia, Meig. (male and female), and X. marrjinata, Meig. 

 (female). 



Beris geniculata, Hal. I know the female of the species, which is 

 distinct from B. fuscipes, but I have not seen a male. 



Sargus. Any yellow-legged species except S.Jiavipes; also -S'. nube- 

 culosns (male), if such a thing exists. 



Pachygaster mimttissima, Zett. 



Stratiomys furcata, Fall. I cannot distinguish what I have seen 

 from *S'. riparia. 



Odontomyia. Any species except 0. ornata, tigrina, and viridula. I 

 expect three or four species unknown to me occur in Britain. 



Orycera dives, Lw. (female), and 0. falleni, Staeg. 



Nemotelus hrevirostris, Meig. I fear all ours are xV. nototas, Zett. 



Leptis conspicua, Meig. Said to be common in some places, but 

 although I can distinguish Syrplms ribesii and vitripennis by the naked 



ENTOM. — JUNE, 1904. P 



