1 HYOUS. 307 



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

 narrower in c? , or eyes sometimes contiguous in cT . Antennae 

 porrect, with 1st joint very long, cylindrical ; 2nd quite short ; 

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

 at base, pointed at tip, with distinct short style. Thorax oblong. 

 Abdomen longer than thorax, cylindrical in 6 , rather compressed 

 towards tip in ? ; genitalia obvious. Legs slender. Wings with 

 venation as in Thereva. 



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



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

 with possibly a species from Africa. 



Life-history unknown. 



Only three species are Indian, no other Oriental ones being 

 known. 



Table of Species. 



Third antennal joint distinctly shorter than 



1st; all femora yellow (in var. brunnijies 



fore femora only pale). 



Eyes in both sexes distinctly separated ; 



abdomen without silvery shimmer, but 



with 'yellowish-white bands to several 



segments brunneus, Wied., p. 307. 



Eyes in <5 contiguous for some distance; 

 abdomen (dorsum) wholly' covered with 

 brilliant silvery shimmer, transverse [p. 309. 



bands barely visible aryentiveniris, sp. n., 



Third antennal joint distinctly longer than 1st ; 



all legs wholly black atripes, Brum, p. 309. 



216. Phycus brunneus, Wied. (PI. Ill, figs. 21-23.) 



Phycus brunneus, Wiedemann, Analec. Ent. p. 19 (1824) ; Brunetti, 



Kec. Ind. Mus. vii, p. 479 (1912). 

 Xylophayus brunneus, id., Auss. Zweifl. i, p. 85 (1828). 

 Jiylophayus canescens, Walker, List Dipt. Brit. Mus. i, p. 129. 

 Phycus canescens, id., Ins. Saund., Dipt. pt. 1, p. 2. pl. i, tig. 5 



(1850). 



J § . Head : frons in S less than half as wide at vertex as at 

 level of antennas, where it is between one-third and one-fourth 

 the width of the head, slightly broader throughout in $ ; 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 

 and silvery-white tomentum on upper part and also on each side 

 of the antennal prominence ; mouth-opening large, black ; pro- 

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

 antennae ; palpi as long as proboscis, thin, slightly clubbed at tip, 

 black, pubescent. Antennae normally black ; 1st joint sometimes 

 brownish red or dark brown or even brownish yellow, a little 

 longer 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 



