DIPTERA. 
. Antenne wholly black. 2. 1. 1 6 1 1 ee ee ee 
Basal joints of the antennz rufous . 2 , oe eee 
4, Abdomen partly rufous and with cinereous or whitish front- 
borders to the segments . . 2 
Abdomen shining black, unicolorous or nearly so . . 
. Third abdominal segment with marginal macrochete only; anal 
segment laterally with whitish reflections 
471 
cinerascens, Big. 
4, 
robusta, Wiedem. 
5. 
generosa, v. d. Wulp. 
Third abdominal segment with discal and marginal macrochete ; 
anal segment without whitish reflections ~ . ee ee 6compascua, v. d. Wulp. 
6. Scutellum concolorous (cinereous or blackish) with the thoracic 
dorsum. 2. 1. 1 6 ee ee ee ee ee 
Scutellum reddish or testaceous, more or less contrasting in 
10, 
diaphana, Fabr. 
coloration with the thoracic dorsum . . . 1. 6 ee es 
7. Abdomen rufous, with a black dorsal stripe. . . . . 
Abdomen shining black or piceous, at most laterally somewhat 
rufous... ew ee ee ee ee te ee ee 8B. 
8. Tegule blackish. . 2 2 eee ee ee ee we ee nigrocalyptrata, v.d.Wulp. 
Tegule whitish . . .. . coe . wee ee DD 
9. Abdomen shining black, the anal segment, at t least laterally, with 
analis, Fabr. 
picea, Rob.-Desv. 
whitish reflections . . a 
Abdomen piceous, without whitish reflections . . . 2. « « 
tO. Abdomen black, with whitish reflecting spots; palpi scarcely 
thickened towards the tip. . . . . te ee ee 
palpi distinctly 
piliventris, v. d. Wulp. 
Abdomen shining black, laterally dark rufous ; 
thicker towards the tip. . . . . 2. « . dispar, v. d. Wulp. 
Echinomyia robusta (p. 32). 
To the localities given, add :—MeExico, Orizaba (H. H. Smith, 
Guanajuato (Schumann), Chilpancingo, Amula, Xucumanatlan, and Omilteme (A. /. 
Smith). 
Godman), Jaral in 
1 (a). Echinomyia cinerascens. 
Echinomyia cinerascens, Bigot, Bull. Soc. Ent. Fr. 1888, p. 256°; 
nota’. 
v. d. Wulp, antea, p. 210, 
Cinereous; head whitish; cheeks with two or three bristles; scutellum rufous; abdomen black, with 
cinereous tomentum ; antenne and legs black; palpi yellowish, very thin. 
Length 11°5 millim. 
Face and cheeks sericeous-yellowish-white ; cheeks next the eyes with three bristles, the lower one weaker 
than the others and sometimes absent; front broader than the eyes, yellowish-cinereous ; frontal band 
somewhat rufous, sometimes inconspicuous ; frontal bristles descending on each side in a curved row 
to about as far as the middle of the second antennal joint; beard and pile of the occiput yellowish. 
Antenne black; second joint with a rufous border at the tip and with some short bristles ; third joint 
round, broader and a little shorter than the second. Proboscis shining black ; palpi yellowish, filiform, 
with some short black bristles towards the tip. Thorax black, with cinereous tomentum and some 
3p 2 
