CLUNIO BICOLOR. 88 



the mouth inflected to the presternum. Eyes round, 

 composed of few facets, with some hairs interspersed, 

 approximate on the face. Antennae inserted near the 

 mouth, shorter than the thorax, 11-jointed, whitish, the 

 third joint elongated, the others short and more dusky, 

 the last again elongated and thickened, elliptical. Pro- 

 boscis obsolete, only the lower margin of the head 

 scalloped, the rounded lateral lobes a little hairy at the 

 tip, perhaps representing palpi, and the intermediate 

 divided lobe the labium. Thorax dusky ferruginous, with 

 the scutellum and pleurae yellowish ; oblong, a little com- 

 pressed; the mesonotum tripartite by two impressed 

 parallel longitudinal lines, and elevated line down the 

 middle, ending in the depression before the scutellum ; 

 this convex semicircular; metathorax very short; 

 mesonotum gibbous backwards. Legs rather short, 

 compressed, dingy white, pubescent ; the hind tibiae at the 

 tip, and the hind tarsi ciliated. Fore coxa twisted, the 

 trochanter toothed, and the base of the femur curved. 

 Tibiae blackish at the very base, armed at the tip with a 

 minute black pointed spur. Anterior tarsi with the first 

 joint linear, the following ones short suborbiculatei, the 

 last ovate ; hind tarsus with the first and third linear, the 

 second oblong, half as long as the third, the fourth short 

 suborbiculate. Ungues dusky; empodium apparently 

 dilated more than the onychia. Posterior coxae extending 

 backwards under the base of the abdomen. Wings oblong, 

 with the axillary sinus semicircular, and the anal angle 

 strong; the membrane adiaphanous, dingy whitish, 

 microscopically stippled, glabrous, only the margin finely 

 pubescent. The veins faint, the radial ending a little 

 before the middle of the costa, the praebrachial is forked 

 opposite the end of the first, the posterior branch running 

 to the tip, the anterior ending not far before it; podo- 

 I 



