INSECTS. 53 



little shorter and more dilated ; the following ten cylindrical, a little 

 longer, except the shorter terminal one. Fine hairs are inserted around 

 the joints, sometimes two on each side, sometimes more — up to four or 

 six. In the basal part of the autennse the hairs are longer (Note 2). 

 Moutb-parts strong; maudibul£e hooked, the base interiorily dilated and 

 denticulated ; maxillse with an elongated interior lobe, with two series 

 of teeth at the base ; the long horny stem straight, bifid on tip, ext(*,rior 

 branch a little longer; maxillar palpus 4-jointed, large, last joint longer, 

 hatchet-shaped, with numerous hairs in small holes on the apical mar- 

 gin ; labium with two triangular inner lobes, and 2-joiuted palpge, the 

 first very short, the last large, similar to the last joint of the maxillary 

 ones, but smaller. Prothorax more than half as broad as the head ; the 

 hind angles protracted into triangular lobes. Mesothorax and meta- 

 thorax not very distinct, seemingly as broad as the prothorax, side lobes 

 more rounded. 



Fore wings shorter than the abdomen, three times longer than broad, 

 rounded on tips, anterior margins in a very flat curve, posterior nearly 

 straight ; base of the wing a little narrower than the tip, rounded poste- 

 riorly. The whole margin around the wing is bordered by a strong 

 vein, thickly beset with oblique darker stripes or tubercles; and at 

 larger intervals with longer stiff hairs, set in holes, mostly on the veins, 

 some near by in the membranous part of the wings. One middle vein 

 is soon furcated beyond the base into a superior and an inferior branch. 

 The superior branch provides the anterior half of the wing; it is furcated 

 very soon again, the two branches running parallel and uniting at about 

 the middle of the length of the wing by an oblique vein. From the 

 upper end of this oblique vein goes a short branch straight to the an- 

 terior margin of the wing, and two longer ones to its rounded apex, the 

 inferior of them again furcated at about its middle; from the inferior 

 end of the oblique vein goes one branch, furcated half-way to the inferior 

 part of the wing-apex; the inferior branch of the two last ones is, in 

 the other wing, furcated again a short distance from the margin. The 

 inferior branch of the furcation just beyond the bas6 of the wing is again 

 furcated just before the middle of the wing, and its superior branch 

 again ; so it goes, somewhat incurved, with three veins, to the apical 

 half of the hinder margin. There go one (or two) straight veins from 

 the basis in an oblique line to the basal half of the posterior margin, I 

 am not sure whether a short oblique vein goes from the basis to the 

 anterior margin. The right wing is more irregular, and it seems thaf 



