JiUISTALIS. 193 



with blaclc pubescence. Antennae black, arista brown, plumose. 

 Eyes bare. Thorax with grey tomentum and tawny pubescence 

 from anterior border up to the suture, remainder black, a little 

 grey tomentum and tawny pubescence on hind border ; scutellum 

 black, large, marginate. Abdomen with tawny pubescence at 

 sides ; 1st segment blackish ; 2nd dull black with a taw ny spot 

 towards each side ; urd wdth a tawu}" band, einarginate in middle, 

 on front margin ; 4th with a small tawny spot on each side; 2nd, 

 3rd and 4th with metallic-green liind margins, broad on lird and 

 4th; 5th segment blue with green reflections. Venter black; 

 2nd segment tawny, with black hind mai'gin ; 3rd black, anterior 

 margin tawny. Legs black, basal half of tibite yellow ; tarsi 

 brownish-tawny. (Hind legs missing.) Halteres brownish. 

 Wings yellowisli, anterior margin brown; veins infuscated with 

 brown or brownish ; 3rd vein with an appendix at the lowest 

 point of the loop; 1st basal cell reaching to middle of discal cell; 

 3rd posterior cell with an appendix at the inner angle*. 



"Locality unknown. In my collection." 



yubsecjuently (Dipt. Exot,, Suppl. i, p. 12(5, 1846) Macquart 

 recorded another specimen which came from India. 



154. Eristalis suturalis, sp. nov. (PI. Ill, tig. 20.) 



(5 2 • Head : in d" , eyes bare, or possibly with a little very short 

 inconspicuous pubescence in front ; irons shining black, with 

 dense black pubescence ; antennse and basal region of antennae 

 dull brown, arista black, shortly plumose above and below for a 

 short distance at base ; face sliining black, with inconspicuous 

 greyish-white dust and a little short whitish pubescence ; central 

 bump moderately large, transverse, upper mouth-border slightly 

 produced; occiput with short whitish hair on under side. In $, 

 irons and facecoufined by straight but not parallel sides, gradually 

 widening from vertex to mouth-opening. Frons at base of 

 antennae nearly one-third of the head, distinctly but not greatly 

 narrowed at vertex ; rather dull black, with a very short, narrow 

 whitish streak (seen best from in front) on each eye-margin 

 considerably Ixdow the middle, and with a slight greyish tinge on 

 the inner side of tlie streak extending some little way across the 

 irons. AV^hole frons with short, rather dense blackish-brown or 

 wholly black pubescence ; ocelli brownish-red to ruby-red. Tip of 

 the frons bright shining brown. Face well cut away below 

 antenruc, moderately |)rominent in middle, black, with yellowish- 

 grey dust and short grey pubescence, this latter almost absent on 

 the central bump ; cheeks black, with yellowish-grey pubescence 

 anddust; mouth-opening large,brown-bordered. lleaddescending 



* Judging from Maciiimrt's figures his " 3r(l posterior cell "is presimiahlv tlio 

 discal cell, nt tlie lower migle of which a small appendix is alllxed. 



O 



