a : 
: Soe AN ACCOUNT OF BRITISH FLIES. 
S. trilineata, Zett. bid., xiii. 734, 27. 
S. incisurata, Zett. = S. annulata, Mg. Ins. Lapp., 859, 7 
(1840). Zett. and Zw.,i., 247, 4 (1818). Meigen. 
SECTION 4.—Ceroplatine. 
Antenne 17-jointed, not very long. Ocelli three, middle one 
small. Thorax elliptical. First longitudinal vein short ; third, fourth 
and fifth veins forked ; brachial vein short. Body long and narrow ; 
eight segments. 
A. Mouth elongated like a beak. 
Tipula, ¥. 
GENUS Asindulum, Ltr. = [Zieoure, Zett. 
Macrorrhyncha, Wz. 
The insects of this genus are slender, and their bodies are long. Head 
(Fig. 17A) oval and depressed in front ; vertex convex ; front broad. 
Eyes oblong ; ocelli three, middle one small. The mouth is produced 
into a short rostrum: the proboscis is long and bifid, elongated lips. 
Palpi 4-jointed ; first joint small, third and fourth fairly long and 
nearly equal. Antennz: first and second joints cyathiform, re- 
mainder cylindrical, except seventeen, this is conical; hairy. Abdo- 
men cylindrical, eight segments; in 9 the abdomen is subfusciform ; 
hypopygium small. Legs long and slender; hind femora stout and 
bare ; hind tibiz have minute lateral spines ; spurs well developed. 
Wings minutely pubescent, parallel in repose ; first longitudinal vein 
short, second ending much beyond half the length of the wing ; fourth 
longitudinal, forked near its base, fore-fork ending just behind tip of 
the wing ; fifth forked nearer base of wing, its fore-fork connected by 
a transverse veinlet with the third longitudinal vein before the fork of 
the fourth ; the sixth and seventh veins short. 
The metamorphosis is not known, but Winnertz* reared them 
from rotten wood. (A. flavum). 
A. flavum, Wtz. = P. rostrata, Zett. 
The zmago is yellow. The thorax yellow, with three brownish 
stripes running longitudinally, clothed with black hairs. Proboscis, 
palpi and antennz blackish-brown. Abdomen brown in the ¢; 
first and second segments yellow ; sixth, seventh and eighth black; 
hypopygium light brown to yellow. In the 2 the abdomen is pale 
brownish-yellow ; third, fourth and fifth segments with black sutures ; 
the seventh and eighth black; ovipositor light brown. Legs pale 
* Stett. Ent. Zeit., 1846, p. 18. 
