1 HYOUS. 307 



proboscis, thin; eyes separated in both sexes, bare; froiis 

 narrower in d, or eyes sometimes contiguous in c? , Anteniue 

 })orrect, with 1st joint very long, cyhudrical ; 2nd quite shorl ; 

 3rd long, longer or shorter than 1st, elongate leaf-shaped, narrow 

 at base, pointed at tip, with distinct short style. Thoraa' oblong. 

 Abdomen longer than thorax, cylindrical in c? , rather compressed 

 towards tip in 9= genitalia obvious. X^r/s slender. Wiiir/s \y\\\\ 

 venation as in Thereva. 



The species are rather small, elongate, and nearly bare. 



liange. S. Europe (one species), Asia, Australia, South America, 

 with possibly a species from Africa. 



Life-historii unknown. 



Only three species are ludiau, no other Oriental ones being 

 know J]. 



Table of Sjjecies. 



Third antennal joint distinctly shorter than 



1st; all femora yellow (hi var. bru7i7iij)es 



fore femora only pule). 



Eyes in both sexes distinctly separated ; 



abdomen without silvery shimmer, but 



with 'yellowish-white bands to several 



segments brun)ieiis,'\\ied., p. 307. 



Eyes in cJ contiguous for some distance ; 

 abdomen (dorsum) Avholly covei'ed with 

 brilliant silvery shimmer, transverse [p. 3C5). 



bands barely visible aif/eidiveiitris, sp. n., 



Third antennal joint distinctly longer than 1st ; 



all legs wholly black afn'pes, Bran., p. 309. 



246. Phycus bruiineus. Wicd. (PI. HI, figs. 21-23.) 



FJn/cKs brunvem, Wiedemann. Analec. Ent. p. 19 (1824) ; Brunetti, 



i.'ec. Ind. jNIus. vii, p. 479 (19J2). 

 Xi/lophcf(jus briinneus, id., Anss. Zweifl. i, p. 8-5 (1828). 

 XyloplKuius cduescciis, Walker, List Dipt. Brit. Mus. i, p. 129. 

 l/ii/cus vduescois, id., Ins. Sauud., Dipt. pt. 1, p. 2. pi. i, ti"'. -t 



(1850). 



c^ 2 . Head : frons in J less than half as wide at vertex as at 

 level of antennae, where it is between one-third and one-fouith 

 the width of the head, slightly broader throughoitt in 5 ; covered 

 on upper half with almost microscopic silver-grey pubescence, 

 lower part shining black, bare ; the shining reddish distinct ocelli 

 ■on a small obvious prominence ; face broad, with parallel sides 

 iind silvery-vvhitQ tomentum on upper part and also on each side 

 of the antennal prominence; n)outh-opening large,, black; |)ro- 

 boscis rather thick, extending forward about as far as base of 

 antennae ; palpi as long as proboscis, thin, slightly clubbed at tij), 

 black, pubescent. Antenna) normally black ; 1st joint sometimes 

 brownish red or dark brown or even brownish yellow, a littlt- 

 louger than head, with microscopic grey pubescence and some 

 short bristly hairs along the underside, beset above with very short 

 stiff hairs ; 2nd joint very short, with black bristles ; 3rd about 



x2 



