178 AN ACCOUNT OF BRITISH FLIES. 
also the first and second longitudinals, the remaining veins pale and 
indistinct. The legs are testaceous, the apices of the tibize and tarsi 
dark brown, minutely hairy. Pl. iv., fig. 5. 
Antenne in female 6-jointed, the sixth joint being long and 
pointed, hairy ; the other joints verticillate, pilose; in the male the 
antennz are plumose, and the whole body and legs more hairy. 
C. riparius, Mg. = C. zonulus, Zett. 
This is a black and green species, widely distributed. The ground 
colour of both male and female is almost black. The thorax is 
green, with three dark brown or black stripes; there is also a green 
band on the hind border of each abdominal segment. The wings 
are milky; the costal, first and second veins are light brown, the 
discal transverse veinlet deep black, the remaining veins pale. Legs 
green, except at the posterior ends of the tibiz and the tarsal joints. 
Length, 3 to 34 lin. : 
C. pallens, Mg. 
This species resembles vifarius, but the legs are ‘estaceous, and 
the thorax of the male is hoary. A common species. 
C. tendens, F. 
This is a testaceous species, with black head and palpi. Veins of 
the wings white, except along the costa, where a faint reddish-brown 
tinge may be observed. The legs are long and slender, and rather 
paler than the body. The posterior borders of the abdominal 
segments are also paler than the general bodycolour. Length, 34 to 
4 lin. Common. 
C. pallens, Mg. 
C. annularius, Lat. 
A widely distributed and common species, gray ; thorax with three 
black stripes ; abdomen almost black, with a gray band on the hind 
border of each segment, the whole body hairy. Palpi and antennze 
black ; the wings are hairy on the hind border, the costal is black, 
as also are the first and second longitudinals and the discal 
transverse veinlet ; the remaining veins are pale. Legs testaceous, 
coxe gray, tips of tibize and tarsi black. Length, 3 to 4 lin. 
C. annularis, Deg. = | 
C. virescens, Mg. = Tipula virginea, Schrk. 
Green ; thorax green with three pale reddish stripes; antennze 
testaceous. Legs pale green. Wings with upper veins testaceous. 
Length, 1 lin. ; 
