18 Mr... M‘Lachlan’s Monograph of the 
clouded at the apex. Legs testaceous ; anterior thighs wholly 
fuscescent ; anterior and intermediate tibize with a broad blackish 
ring at the apex, and the tarsi spotted with fuscous ; posterior 
tarsi slightly fuscescent. Abdomen dark testaceous. In the 
male the upper margin of the last abdominal segment is fringed 
with long hairs ; app. sup. small, almost entirely concealed ; app. 
inf. long, broad at the base, directed inwards and upwards, brown 
at the tips, testaceous at the base; app. intermed. (?) long and 
needle-shaped, curved inwards and upwards. In the female the 
apex of the abdomen is very obtuse, with the appendices not 
evident. 
Expanse of fore-wings 83—10 lin. The female rather larger 
than the male. 
Until recently this was a scarce species. In 1863 Mr. Barrett 
discovered it in abundance near Haslemere, Surrey, and in July 
in that year I took upwards of forty examples in one day at his 
locality. They hid themselves in the day-time in the chinks of 
the bark of oak trees, which they greatly resembled in colour. 
Genus Nevuronta, Leach, Stephens. 
Antenne stout, basal joint short, bulbous. Head small, trans- 
verse. Maxillary palpi of the male slightly hairy, basal joint 
short, second and third joints broad, the third longer than the 
second, terminal joint still longer, narrow, the joints thin and 
compressed; of the female, with short basal joint, second and third 
joints broad, the third rather the longest, fourth and fifth joints 
narrow, of nearly equal length. Labial palpi with short broad 
joints, first joint truncated at the summit, second joint rather 
narrower, pyriform ; terminal joint broadest of all, ovate. Pro- 
thorax very narrow, hairy. Mesothorax much broader than the 
head, smooth and shining. Anterior wings broad, shining, with 
scarcely any perceptible hairy clothing, apex elliptical ; neuration 
very strongly marked, alike in both sexes, radius sharply bent 
before its termination, discoidal cell long and narrow, first apical 
cell reaching to the middle of the discoidal, fifth obliquely trun- 
cated at the base. Posterior wings rather shorter than the 
anterior, with elliptical apex, discoidal cell short and narrow, first 
apical sector united to the radius. Legs moderately stout, tibiae 
and tarsi with few very short spines, spurs short, equal. Abdo- 
men robust, the male with long needle-shaped appendices ; 
terminal segment in the female very broad, with shorter and 
thicker appendices. 
Larva inhabiting standing waters. (See Pl. II. fig. 17.) Case 
