British Species of Caddis flies. 23 
b. Anterior wings not distinctly granulated, 
elongate. 
1. A dark line in apex of pos- 
terior wings, apex pointed . Grammotaulius. 
2. No dark line; apex not 
pointed. 
* Apex of anterior 
wings more or less 
truncated . . . Colpotaulius and 
Limnephilus. 
*® Apex of anterior 
wings parabolic or 
rounded. . . « Anabolia and Ste- 
nophylax. 
Bee pars f=S-3) 6 ale se et ey alesas, 
Gaspurs: '2-8 a ge Oe Oe eo Eceligopteryz, 
D. Spurs 1-2-4 : - 2 0 9 +6» Apatania. 
E. Spurs 0-3- 3(8); 1- 3- 3 (9) caret as Chaatopterya. 
Genus Cotrotautius, Kolenati. 
Antenne moderately stout, tapering, basal joint about the length 
of the head, very slightly curved. Head nearly quadrate. Max- 
illary palpi of the male with short basal joint, second joint long, 
third somewhat shorter than the second and slightly compressed ; 
of the female, with short basal joint, second third and terminal 
joints of nearly equal length, fourth shorter. Labial palpi with 
broad and compressed basal joint, second joint narrower, terminal 
joint oval, slightly longer than the others. Prothorax moderately 
developed, very hairy. Anterior wings narrow, hairy covering 
_rather dense, apical cilia evident; costal margin much rounded, 
apical margin obliquely truncated, dorsal margin nearly straight, 
neuration strongly marked, radius with a scarcely perceptible 
bend before its termination, pterostigma never marked, apical 
cells all reaching the anastomosis. Posterior wings very deeply 
excised just below the rounded apex, hyaline, cilia evident. An- 
terior tibiae with few spines and one moderately long apical spur ; 
intermediate tibia strongly spinose, one long spur in the middle 
and two at the apex, of which the inner is the longest ; posterior 
tibiz also strongly spinose, with two long median and two apical 
spurs, the inner the longest in both pairs. 
Larva unknown. 
This genus, first formed by Kolenati in the first part of his 
‘* Genera et Species Trichopterorum,” has been adopted by Brauer, 
