TIIK M VK'IAI'MhA IN I'lIK A IsTl; A I.I A X Ml'SKILM KKcM.K M ANN. SI 



litst ti|i|UMl with four stMisoiT cones. Mieroiiieti'ical nieasui'e- 

 lueiits of the joints : — 1st joint, 0.544 ni/ni ; 2nd, 0.H20 ni/ni ; 

 3rd, 0.820 ni/m ; 4t.h, 0.288 ni, ni ; 5tli, 0.288 m/in ; (Uli, 0.544 

 ni/m; 7tli and 8tli, 0.096 ni/m ; total len<rth, 2.400 ni/m. 

 Diameter of first joint, 0.672 m/ni ; of si.xtli joint, 0.576 ni/ni. 



First terg'ite not wider tlian the liead ; anterior niarfjiii 

 slifrlitly convex in the middle, otherwise straiglifc ; posterior 

 margin evenly rounded. Its lengtli equals 1.376 m/m ; its 

 breadth 3.776 m/m. 



Lateral keels of tlie second tergite rounded witli upraised, 

 yet flattened centime and thickened, pad-like margins ; the slope 

 between tlie upraised centre and the mai'ginal pad is flat, not 

 grooved ; a roAV of fleecy hair is seen inside the marginal pad. 

 Keels of the tliird tei'gite narrow, augulai'. On the foni'th 

 segment, the keels are almost triangular, but gradually become 

 more quadrangular backwards, the antei'ior angle being always 

 completely rounded, while the posterioi grows more or less acute. 

 Occupying the anterior half of the keels a triangular, flattened 

 field is to be seen, the surface of which is clothed with tiny 

 golden setae and appears finely punctured. Last tergite some- 

 wliat gibbous in the middle; the space between the summit 

 and the posterior margin is scarcely noticeably flattened on 

 each side of the middle line, the two surfaces meeting mesially 

 without forming any distinct carina. The posterior margin 

 shows traces of a delicate pre-marginal sulcus. 



From the fourth segment backwards, the inner surface of the 

 keels is pi'ovided with a sti'ong horizontal ridge which stands 

 below and near the insertion line. of the pleural membrane. It 

 is thus disposed that, in the contracted state of the body, the 

 posterior end of a ridge comes in contact with the anterior end 

 of the ridge of the next segment so as to form an uninterrupted 

 projecting line upon which the lateral and part of the anterior 

 mai-gin of the second segment is pressed tight. On the last 

 segment, the ridge sets forth converging with the hind margin 

 of the tergite, but dies out before reaching it, thus leaving free 

 the middle part of the inner surface. 



Sterna of the first pair angularly pi'oduced and hairy ; 

 following sterna ]'ounded ; tracheal stigmata everywhere 

 strongly chitinized. 



