116 Mr. R. M‘Lachlan’s Monograph of the 
3. Mystacides quadrifasciata, Fabricius, (Pl. XU. figs. 1, 2, app.) 
Phryganca quadrifasciata, Fab, Syst. Ent. p. 308, 17 (1775); 
Zett. Ins. Lapp. col. 1072, 50; Leptocerus quadrifasciatus, 
Steph. (*) Ill. p. 200, 22; Mystacida quadrifasciata, Ramb. 
Hist. Nat. Névrop. p. 511, 9; Mystacides quadrifasciata, 
Brauer, Neurop. Aust. p. 41; Hag.(*) Ent. Ann. 1869, p. 
75,73; Setodes quadrifasciata, Kol. Gen. et Spec. Trichop. 
DE. 2+ 209, 2, pl. 0, we. 3. 
Antenne whitish, annulated with dark fuscous. Head and 
mesothorax shining blackish-fuscous. Palpidark fuscous. Anterior 
wings golden-yellow, with three broad transverse fuscous fasciz ; 
thus the wings appear to have four golden and three fuscous . 
bands of about equal breadth; fringes fuscous. - Posterior wings 
smoky-fuscous, subhyaline, with grey fringes. Legs ochreous. 
Abdomen brown, with pale lateral lines. In the male the app. 
sup. are long and fine, hairy ; app. intermed. closely approximat- 
ing, 
below these is to be seen the testaceous upper penis-cover (or 
penis ?), bent downwards at the tip; app. inf. short, directed up- 
wards ; ventral plate produced in the middle into a short, straight, 
truncated lobe. In the female the Jateral valves are scarcely nar- 
rower at the base, afterwards curved strongly downwards; above 
them on each side is a short hairy finger-shaped appendage. 
Expanse of fore-wings 8—9 lines. 
triangular at the base, running to an acute point, straight ; 
A common species in summer about standing waters and the 
shallow expansions of the margins of slowly flowing rivers. 
Varies greatly in colour; in strongly marked individuals the 
dark bands predominate; in others there is not a trace of these, 
the wings being entirely golden-yellow. 
Genus Sztroprs, Rambur. 
Antenne very long and thin, more than twice as long as the 
wings; basal joint stout, as long as the head. Maxillary palpi 
Jong and hairy ; first joint rather long; second and third joints 
very long; fourth and terminal joints shorter (perhaps these palpi 
vary according to the species). Labial palpi very small. Meso- 
thorax robust, convex and ovate. Anterior wings very long and 
narrow, but slightly dilated before the apex ; hairy clothing dense, 
sometimes very long; discoidal cell closed ; first apical cell long ; 
anastomosis usually straight. Posterior wings usually not folded, 
narrow; the costal margin generally somewhat convex in the 
middle; discoidal cell open; fringes very long. Legs rather 
