466 Mr. Westwoop on some new Species of Athyreus, 
of the genus by the raised tubercle on the front part of the pronotum being 
placed towards the middle, instead of close to the anterior margin. The 
upper side is pitchy chestnut, with the front of the head broad, the margin of 
the prothorax and narrow edges of the elytra fulvous red; the underside of 
the body and legs are also fulvous red, with fulvous hairs. The head is 
covered with very fine tubercles, having the front margin nearly semicircular, 
the centre produced into an angle advanced over the clypeus, and the two 
anterior angles in front of the antennze are scarcely prominent. Between the 
eyes is a rounded polished excavation. The prothorax is also covered with 
very minute tubercles; and at a little distance in front of the centre is a 
raised oval tubercle, from which extends a slightly-impressed longitudinal 
line reaching to the scutellum ; from this line the sides are slightly raised, 
the raised part on each side being bounded by an oblique, slender, raised and 
polished line, from which, near the base, extends inwardly a small transverse 
and not very distinet spur. Between this line and the hinder angle is another 
much shorter and more oblique raised shining line, and towards the lateral 
margin, opposite to the notch above the base of the fore-legs, is a small cir- 
cular excavated spot. The elytra are finely rugose and setose, substriated, the 
striæ being deeper towards the base of the elytra, and almost vanishing before 
reaching the apex. The fore tibize have five obtuse teeth. 
LI 
EXPLANATION OF TAB. XXII. 
Fig. 1. Athyreus gigas, Hope, MS. 1a. Head and thorax of ditto, detached. 
2. armatus, Hope, MS. 2a. Head and thorax, detached. 
3. subarmatus 9, Westwood. 3a. Head and thorax, detached. 
4. tuberculatus, Hope, MS. 4a. Head and thorax, detached. 
5. 
rotundus, Hope, MS. 5a. Head and thorax, detached. 
- ——— bellator, Westwood. 6a. Head and thorax, detached. 
7. — — Bilbergii, Gray. (Head and thorax, seen from above.) 
8. Pholas, Buquet, MS. 8a. Head and thorax, detached. 
9. excavatus, Laporte. (Head and thorax, seen from above.) 
10, bicolor, Laporte. (Head and thorax, seen from above.) 
"a 
sexdentatus, Laporte. (Head and thorax, seen from above.) 
