194 G- 0. SAKS, 



projections. It is not easy to indicate with exactness where tliose projections 

 take their begin, as they are only little by little growing out from the seg- 

 ments, but in the antepenultimate segment of the mesosome there is generally 

 found a distinct approach to such a projection, and in the last segment, as 

 also in those of the metasome, they are very conspicuous, being obtusely 

 triangular in form and distinctly laminar. The urosome is unusually jiro- 

 longed, nearly equalling in length the metasome, and has the 1st segment 

 slightly keeled dorsally in its posterior part and produced at the end to a 

 short acute projection; a similar, but much smaller, dorsal projection may 

 also be observed in the succeeding segment, whereas the last segment is 

 quite smooth above. 



The cephalon (tig. 2) about equals in length the first 2 segments of 

 mesosome combined, and is produced in front to a distinct, though not very 

 large rosti'al projection. The latei-al lobes are very slightly projecting and 

 broadly truncated at the tip, being defined from the rather deep and acut- 

 angidar postantennal corners by a slight emargiuation. The lateral faces of 

 the cephalon are quite smooth, without any trace of a projection. 



The 4 anterior pairs of coxal plates (see fig. 1) are rather large, being 

 considerably deeper than the corresponding segments, and of an oblong quadr- 

 angular form, with only a few scattered hairs on the distal edge. The 1st 

 pair (see fig. 11) are somewhat smaller than the succeeding ones, and very 

 slightly expanded in their outer part. The 4th pair arc but little broader 

 than the preceeding pair, and exhibit posteriorly in their ujiper pait a very 

 slight emargination defined below by an obtuse angle. 



The 3 posterior pairs of coxal ])lates are, as usual, much smaller than 

 the anterior, and successively diminish in size. The 5th paii' are but little 

 broader than they are deeep, and have the anterior lobe somewhat more 

 projecting than the posterior. 



Of the epimeral plates of the metasome, the 1st i)air are, as usual, the 

 smallest and evenly rounded. The 2nd pair are considerably deeper and 

 acutangular at the lateral corners: the last pair ai-e of a more rouudeil 

 form, though ])roduced at the lateral corners to a short acute ])oiut. 



The eyes (see fig. 2) are of modei-ate size and oval reniform in shape. 

 They are but slightly pi-otuberant and placed near the anterior edges of the 

 cephalon. The pigment is dark. 



The superior antennte (see fig. 1) scarcely exceed in length ' '.j of the 

 body, and are but s])aringly supi)lied with small bristles. Of the joints of 

 the peduncle the 1st is much the lai-gest, being nearly as long as the other 

 2 combined. The last ])eduncular joint is considerably smaller than the 2nd. 

 The flagellum is but little longer than the peduncle and composed of about 



$n3.-MaT. CTp. 194. jg 



