12. 
13. 
14. 
17. 
18. 
. Scutellum rufous ; 
. Thorax with four distinct black stripes 
. Anal segment, or at least the anus, red 
EXORISTA. 
Abdomen cinereous, with broad black hind borders to the 
segments . : . rr 
Abdomen black, with grey or white reflections . 
abdomen broadly ovate . 
Scutellum black or greyish; abdomen conical . 
Thorax with obsolete stripes . 
Anal segment not differing in coloration from the preceding 
segments; anus grey or black 
. Antenne rufous . 
Antenne black . 
. Palpi black 
Palpi rufous . 
Hind tibiae outwardly fringed . 
Hind tibiz outwardly with bristles of unequal length 
Frontal bristles short, descending close together and somewhat 
irregularly beneath the root of the antenne (3); frontal 
band narrower than the lateral portion, and the terminal joint 
of the front tarsi not dilated ( ) woe eee 
Frontal bristles longer, and forming on each side a single 
regular row (3); frontal band as broad as the lateral portion, 
and the terminal joint of the front tarsi dilated (?) . 
Scutellum black, with a grey hind margin; second and third 
abdominal segments black, with grey reflections and white 
front borders . ee . 
second and third abdominal segments 
cinereous, with black hind borders and a black dorsal stripe. 
Scutellum cinereous ; 
. Terminal lips of the proboscis yellow; thorax ent bluish-grey, 
with obsolete stripes . . . . 
Terminal lips of the proboscis black or . brown *; thorax other- 
wise coloured and usually with distinct black stripes . 
3. Thorax with three distinct black stripes, which are prolonged 
behind the transverse suture; anteriorly on each side of the 
median stripe a black line t oe . 
Thorax with four black stripes, or the stripes less conspicuous. 
Scutellum testaceous; palpi rufous . . 
Scutellum black, with a greyish hind border; palpi black . 
Anal segment with a greyish front border; larger species (10 
millim.) 
61 
ordinaria, v. d. Wulp. 
7. . 
brevis, v. d. Wulp. 
8. 
elongata, v. d. Wulp. 
. hispida, v. d. Wulp. 
. 10. 
15. 
rubricornis, v. d. Wulp. 
ll. 
latevittata, v. d. Wulp. 
12. 
13. 
14. 
tricolor, v. d. Wulp. 
latimana, v. d. Wulp. 
consobrina, v. d. Wulp. 
sororcula, v. d. Wulp. 
flavirostris, v. d. Wulp. 
16. 
17. 
19. 
interstincta, v. d. Wulp. 
18, 
trivittata, v. d. Wulp. 
* In some specimens of E. angustata and E. griseomicans the terminal lips of the proboscis are rufous; in 
these examples, however, the thorax has not a bluish tint, but is grey with very distinct black stripes. 
+ Compare also the description of H. tenwipalpis on p. 73. 
