YPSOLOPHUS. 
middle of the costa is a very dark grey or black oblique streak, but 
there are no other definite markings; cilia dark grey. Posterior wings 
grey, with pale fuscous cilia. 
Hitherto scarce; but Mr. Weir has bred the species in July, 
| from larvie feeding in the shoots of Genista tinctoria, in June. 
. Mr. Weir found them at Pembury, near Tunbridge Wells. 
Genus XIII. YWPSOLOPHUS. 
. Ypsolophus p., Waw.; Zell. Rhinosia p., Treit.; Dup. Macrochila p., 
Step. 
Capilli depressi. Ocelli nulli. Antenne setaces, remote denticulate, 
& microscope ciliate. Haustellum mediocre, squamatum. Palpi 
labiales articulo secundo infra scopiformi, pilis antice productis, a- 
ticulo ultimo levi, aculeiformi, recurvo. Ale elongate, mediocriter 
| ciliate, posteriores trapeziformes ante apicem levissime retuse ; an- 
teriores: vena apicalis furcata ante apicem exit; cellula secundaria 
; C : : 
nulla; vena mediana in fwrcam terminatur; subdorsalis furcata ; 
| submediana non incrassata; posteriores: cellula costalis normalis ; 
) vena subcostalis e venula transversali furcata; mediana trifida. 
| Head smooth. Ocelli none. Antenna setaceous, remotely denticu- 
late (of the 3, viewed through a lens, ciliated). Tongue of moderate 
| length, clothed with scales, Labial palpi, with the second joint be- 
neath, formed like a brush, with the hairs produced in front; ¢he dast 
Joint smooth, pointed, recurved. Wings elongate, with moderate cilia ; 
; the posterior trapeziform, very slightly retuse before the apex. In the 
anterior wings the fureate apical vein runs into the costa before the 
apex; the secondary cell is not indicated; the median vein terminates 
in a fork ; the subdorsal vein is furcate; the submedian is not thieck- 
ened. In the posterior wings the costal cell is without any peculiarity; 
the subcostal vein is furcate from the transverse vein; the median vein 
is trifid. 
Of five continental species, only two have been observed in 
this country, The habits of the perfect insect are very similar 
to those of the preceding genus. ‘The habit of the larva of Yp. 
Marginellus is to feed near the ends of the juniper twigs, in a con- 
siderable mass of web, which at first sight appears extremely like 
the abode of a spider. Whether this habit prevails in all the 
other species of the genus, I am not aware (I'ischer’s figure of the 
larva of Juniperelius shows a complete accordance with the habit 
of the larva of Marginellus). 
1. fasciellus, Hiib. Tin. 111 (1801); Haw.; Treit.; Dup.; Step. 
Curt. Alis anticis dilute rufo-fuscis, dorso late fusco-suffusis, punctis 
VOL. III. U 
