82 



a considerable distance, widening gradually to vertical and frontal 

 triaugles, with black hairs throughout its length ; upper part blue 

 or violet, merging into green at its narrowest part, and thence to 

 yellow on frontal triangle; antennae brownish orange: face 

 brownish, with moderately dense yellow pubescence; proboscis 

 brownish orange; occiput dark with marginal fringe of pale hairs. 

 In $ , frons no wider than in <3 . Thorax in J brilliantly shining 

 metallic green, with rather dense short yellow pubescence ; 

 scutellum similar; front and hind corners of dorsum, and a stripe 

 from shoulder to wing-base, brownish yellow ; sides of thorax 

 almost wholly metallic green, with yellow pubescence and violet 

 reflections. In $ , thorax deep blue, with soft white pubescence. 

 Abdomen in c? brilliantly shining metallic cupreous green, with 

 dense deep orange pubescence, winch is rather thicker towards 

 sides ; venter darker or with violet tinge, shining, with pale 

 yellow microscopic pubescence. In 5 , brilliant violet with a 

 bronze tinge and white pubescence. Genitalia in rf consisting 

 of a pair of orange-brown claspers and two upper short dark 

 hairy cylindrical lamellae. Leys in <$ brownish orange ; posterior 

 coxae shining blackish ; hind femora broadly at tips and hind tibia; 

 broadly at base, blackish ; tarsi blackish on upper side, especially 

 hind pair; all legs with minute pale pubescence. In $, legs all 

 black, except brownish knees and underside of front tibiae ; tarsi 

 with brown pubescence below. Wings distinctly brown, a little 

 darker anteriorly ; venation normal ; halteres yellowish. 

 Length, 17-18 mm. 



Described from four d 1 c? in the Indian Museum : Mergui, 

 Tenasserim (Doherty) Pyinmaua, Burma, vi. 1910 (//. L. 

 Andrewes) ; Sylhet ; and one $ from Tura, Garo Hills, Assam, 

 1500 ft., vii.1917 (Kem t >). 



Easily known from all other Indian species by its great size and 

 splendour. The Indian Museum specimens from Tenasserim 

 were named by Bigot as his maytiifaus, but. I now feel sure they 

 are synonymous with Walker's yemmifer, and possibly pubesccns, 

 Wulp. may be another synonym. 



53. Sargus metallimis, F. (PI. I, tigs. 22, 23.) 



Sar</its metallinus, Fabricius, Syst. Antl. p. 258 (1805) ; Brunetti, 

 liec. Ind. Mus. i, p. 106(1907); Wiedemann, Auss. Zweifl. ii, 

 p. 30 (1830) ; de Meijere, Tijd. v. Ent. liv, p. 265 (191 ]). 



Saryus formica formis, Doleschall, Nat. Tijd. Ned. Ind. xiv, p. 403, 

 pi. iii, tig. 5 (1857). 



Sargus paltipes, Bigot, Ann. Sue. Ent. France, (5) ix, p. 222 (1879). 



c? $ . Head : frons in tf extremely narrow, with sparse 

 greyish pubescence ; slightly wider towards vertex and distinctly 

 broadening towards antenna? ; the upper narrower part varying 

 from bronze to bright metallic green, the lower part brownish 

 yellow or brownish : vertex with some brownish yellow hairs. 

 In the $ , frons at its middle one-seventh width of head, distinctly 



