30) Mr. R. M‘Lachlan’s Monograph of the 
Case formed of leaves and other vegetable substances fixed 
longitudinally, without any particular order. 
A very common and generally-distributed species, inhabiting 
the neighbourhood of ponds and marshes, and appearing in 
summer and autumn. It is exceedingly variable, but may always 
be recognised by the excised apical margin of the anterior 
wings. 
B. Apical margin of anterior nings entire. 
(1.) Apical margin sharply truncated. 
a. Anterior wings more or less stran-coloured or 
yellowish ; large species ; the male generally has 
a tuft of short black hair on the first apical 
sector of the posterior nings beneath ; fenestrated 
spot usually large and well defined. (Corre- 
sponds very nearly to Chetolaulius, Kol.) 
2. Limnephilus rhombicus, Linné. (Pl. IX. figs. 12, 13, app.) 
Phryganea rhombica, Linn. Faun. Suec. n. 1486 (1761), and 
other authors ; Limnephilus rhombicus, Steph. (*) Il. p. 214, 
6; Limnophilus rhombicus, Burm. Handb. p. 932, 9; Brauer, 
Neurop. Aust. p. 51, fig. 91, 92, app.; Hag. (*) Ent. Ann. 
1859, p. 76, 12; id. (*) Neurop. N. Amer. p. 254, 2; Limne- 
phila rhombica, Ramb. Hist. Nat. Névrop. p. 481, 17; Cheto- 
taulius rhombicus, Kol. Gen. et Spec. Trichop. pt. 1, p. 45, 7. 
Antenne reddish-testaceous. Head reddish-ochreous. Palpi 
testaceous. Mesothorax reddish, darker than the head. Anterior 
wings broad, pale greyish-yellow, the costal margin nearly hyaline, 
clouded and irrorated with pale brown, darkest towards the dorsal 
margin; fenestrated spot large, oval, with a brown dash on either 
side, anastomosal space sometimes indistinct, filled in with brownish 
markings; there are also some pale spots about the thyridium; 
veins scarcely darker. Posterior wings hyaline, yellowish at the 
tips, and with yellow veins; first apical sector in the male with a 
small blackish beard. Legs pale testaceons, with black spines. 
Abdomen ochreous, greenish beneath in life. In the male the 
upper margin of the last abdominal segment is produced in the 
middle into a broad rounded lobe, margined with black; app. sup. 
large, boat-shaped, the lower margin narrowly black, with several 
minute black teeth; a large projection or tooth in the middle, also 
black; app. intermed. short, triangular; app. inf. short, with a 
long tuft of blackish hairs at the apex. In the female a short 
broad triangle arises from the middle of the upper margin of the 
