154 Descriptions of British Diptera. 
vous, the hypostome with two black points anteriorly, and the 
crown with another black spot ; the margin of the eyes yellow ; the 
pubescence on the thorax is yellowish-green, and scutellar spines en- 
tirely yellow. 3^-4^ lines. 
Not so plentiful as the following, but occurring now and then on 
banks and in meadows. " Cardew Mire," T. C. Heysham, Esq. " In 
ponds, Holy wood : Killarney, &c." A. H. HaUday, Esq. 
6. ODONTOMYIA VIBIDULA. (s.) 
Stratiomys viridula, Fabr. Panzer, Fauna Germ. Iviii. 18. Meig. Zwei. iii. 
149. Odontomyia viridula, Latr. Gen. Crust. 
Head and antennae blackish, the former with whitish silky pu- 
bescence j eyes green, with a purple band ; thorax entirely clothed 
with short hairs of a golden or brassy colour ; the hinder margin of 
the scutelium and the two spines yellowish : abdomen yellowish- 
green both above and below, with a black band along the back, ra- 
ther narrow, and widened posteriorly in the male, but broad in the 
female, and widening suddenly on the third and fourth segments ; 
legs entirely yellow ; halteres whitish ; wings with yellow nervures, 
and having a single submarginal cell. 3-3^ lines. 
A species of frequent occurrence in damp meadows, and on the 
margin of ponds, &c. throughout England and the south of Scotland 
during the summer months. Taken plentifully about Edinburgh. 
" Chelsea," Rev. A. Badger. It is probably distributed over the 
whole island. 
7. ODONTOMYIA TIGRINA. 
Musca tigrina, Gmelin Stratiomys tigrina, Fabr. Meig. Panzer, Faun. 
Germ. Iviii. fig. 20 Odontomyia tigrina, Latr. Stephens. 
Head and antennae black, the hypostome in the female with grey 
hairs ; eyes with a purple fascia ; thorax black, with pubescence of 
the same colour in the male, but the pubescence in the female yel- 
lowish, inclining to green when seen in certain lights ; abdomen 
entirely black above, rufous beneath, the under side of the female 
widely margined with black ; legs ferruginous, the thighs nearly 
all brown, and the tibiae having a patch of that colour towards the 
middle. 3-4 lines. 
Has been taken near London and elsewhere, but appears to be rare. 
GENUS CLITELLARIA, Meig. 
Antennae about the length of the head, the two first joints near- 
ly equal, short and somewhat cup-shaped, the third thicker and 
conical, five-ringed, and terminating in a two-jointed style, (Fig. 1 ;) 
