1907.] Records of the Indian Museum. 105 



3. Front brilliant, metallic blue-green, 

 triangle yellow, stigma unicolorous, 

 thorax blue-green, abdomen copper, 

 violet reflections . . Long. 14 mm. magnificus Big. 



AA Moderate sized species 7 to 10 mm. 

 {Icetus 12 mm.). 



C Wings very long, each 14 mm. long 



Long. 12 mm. longipennis Wied. 



CC Wings normal. 



D Abdomen metallic blue-green, or there- 

 abouts. Base not whitish ; legs nor- 

 mally long, 



E Legs all yellow (reddish yellow or yel- 

 lowish white), no black in them : at 

 most, tarsi lips darker or blackish. 



F Stigma dark brown. 



G Wing cinereous ; whitish species. Disc of 



thorax and scutellum tip purple Long. 10 mm. inadus Wlk. 



OG Wing clear, posterior half a little grey. 

 Thorax and scutellum brilliant gold- 

 green. Abdomen brilliant metallic 

 violet . . . . . . Long. 8 mm. pallipcs Big. 



FF Stigma pale yellow h eyes contiguous. 



H h eyes contiguous . . Long. 8 — 10 mm. mdallinus F. 



HH h eyes not contiguous . . Long. 7 — 9 mm. mandarinus Sch. 



EE Legs with distinct black rings, streaks, 

 or more or less black. 



1. Femora with black streak above, near 



tip . . . . Long. 7 — 8 mm. redhibens Wlk. 



2. Base of posterior femora black and 



slender . . Long. 12 mm. Icetus V. W. 



3. Femora and tibiae partly piceous . . Long. 9 mm. concisus Wlk. 



4. Posterior half of posterior femora black . . 



Long. 9 mm. albopilosus Meij. 



5. Anterior femora black at tip and posterior 



tarsi at base. Posterior femora and 



tibise black . . . . Long. 7 mm. tibialis Wlk. 



6. Posterior tibise with blackish basal half 



Long. 9 mm. mactans Wlk. 



7. Legs mostly brown marked, not black . . 



Long, (without head) 9 mm. papuanus Big. 

 DD Abdomen purple, white at base, legs , 



extra long . . . . Long. 11 mm. longipcs Wlk. 



AAA Small species. 



Long. 5 mm. black shining , . Long. 5 mm. debilis Wlk. 



Long. 3 mm. pale tawny shining Long. 3 mm. inficitus Wlk. 



S. rufus Dol., 1858. 

 Nat. Tijd. Ned. Ind., xvii, ^Z- 

 Amboina. Rare, during dry season. 



