MaiicJiester Memoirs, Vol. xlvii. (^\Q)Ol), No. 14. 13 



under the tubercles (rounded at the base, gradual!}' 

 widened towards the apex), and the apex of the 

 mandibles, black ; the face and clypeus strongly punctured, 

 finely transversely striated below the tubercle ; the black 

 apex o{ the clypeus and the labrum smooth. Thorax 

 black ; a line on the base of the propleunt (narrow above, 

 widened below), a line on the sides of the middle lobe of 

 the mesonotum, a transverse one at its apex ; the scutellum 

 (except for a somewhat triangular black mark at its base), 

 the post-scutellum, a large mark on the apex of the 

 median segment, square at the base, widened towards the 

 apex ; the tegulae, tubercles, a large mark on the lower 

 side of the mesopleurs, dilated upwards at the apex, and 

 a large oblique mark on the middle of the metapleurae 

 near the apex, yellow. Mesonotum closely punctured ; 

 the depression at the base of the scutellum deep, the 

 bottom flat, shining, finely longitudinally striated. 

 Scutellum sparsely covered with long, white hair, coarsely, 

 but not closely, punctured ; the post-scutellum smooth. 

 There is a deep, narrow furrow at the base of the median 

 segment, which is smooth in the middle, the rest closely 

 and finely longitudinally striated ; the part behind the 

 transverse keel closely, but not strongly, punctured, 

 smooth at the base ; the rest of the segment rugosely 

 punctured, almost reticulated in parts, the sides trans- 

 versely striated ; the apex has a distinct keel on the sides 

 below, the keels continued on to the centre obliquely and 

 rounded at the top. Propleurae smooth, finely punctured 

 above, the middle striated. Mesopleurae punctured, more 

 strongly at the base behind the keel ; under the tubercles, 

 at their base, are three short, curved keels ; the middle 

 above is striolated ; the furrow on the lower side is deep 

 and extends to the middle ; the part behind it is striated. 

 The base of the metapleur?e smooth, the rest punctured. 



