Genera and Species of Exotic Trichoptera. 257 
discoidal cell closed ; apical forks four, the first very small. Legs 
long. Spurs 2-2-2, each tibia being provided with two small 
and equal apical spurs. Abdomen robust, depressed in the female; 
anal appendices well developed in the male, the inferior pair 
bisarticulate ; in the female the apex of the abdomen is obtuse, 
with two rounded’ superior valves. 
A genus with the facies of Leptocerus, and formed to receive 
the species described as Leptocerus magnus, Walker, L. oppositus, 
Walker, LZ. canescens, M‘Lachlan, &c., together with some hi- 
therto-undescribed species, which do not agree with Leptocerus 
in the neuration. The group appears to be peculiar to Australia, 
New Zealand, and the neighbouring islands of the Eastern Archi- 
pelago. 
_ I am now inclined to consider my L. canescens as merely the 
female of L. magnus. I have received numerous examples from 
Mr. Edwards of Melbourne, and in all cases the specimens of the 
one are males, and of the other females. L. oppositus and L. cog- 
natus are also nearly related to these, and may be only varieties, 
but the difference of locality favours the suspicion that they are 
distinct. L. cephalotes, Walker, from New Zealand, probably 
also belongs to this genus, but the type is scarcely recognisable, 
and L. exiguus, M‘Lachlan, should, perhaps, be added, but I 
await the opportunity of further investigation. 
The species will therefore stand as follows :— 
i Notanatolica magna, Walker. (PI. XIX. fig. 3.) 
Leptocerus magnus, Walk., Brit. Mus. Cat. Neurop., pt.. 1,.p. 
73, 69, 6; L. canescens, M‘Lach., Trans. Ent. Soc., 3rd 
series, 1. 306, 9. 
I subjoin a description of the anal appendices. In the male 
there is a broad rounded lobe from the middle of the upper mar- 
gin of the last abdominal segment ; on each side of this are placed 
the app. sup., which are small, elongated, obtuse, yellow, and 
furnished with long hairs at the apex ; app. inf. bisarticulate, the 
first joint broad and obliquely truncated at the apex, the second 
joint double, the upper portion long and curved, the lower por- 
tion shorter ; at the base of the app. inf. there is an additional 
appendage, curved upwards, and fringed with long and strong 
hairs; interiorly is to be seen a boat-shaped upper penis-cover 
including the smal] penis. The female is furnished with a broad 
rounded lobe, and two small obtuse superior valves, 
