2o4 A. e. ornroiAXS, xote? on acaIiî. 



pair a little before the level of the shoulder-hairs ; one pair 

 ill the posterior half of the anterior shield ; one pair about 

 in the middle of the ])osterior shield but remote from each 

 other ; and finally 8 pairs quite posteriorly. The bristles are 

 small, standing on their usual places. 



Ventral s i d e. T r i t o s t e r n u m (fig. 39) short, wide, 

 suddenly narrower in its distal half, halfway with a pair of 

 minute transparent triangular wings, distally Avith a pair of 

 large transparent triangular wings ; laciniae long, reaching 

 hairs II and III. J u g u 1 a r shields (fig. 35) small Y- 

 shaped. Except the m e t a s t e r n a 1 shields all the other 

 shields have fused. The anterior edge of the sternal part is 

 indistinct ; the two longitudinal roAvs of sternal, metasternal 

 and genital hairs unusually approaching the median line. The 

 demarcation betAveen the genital and ventral part only indi- 

 cated by a fine line in the middle. The abdominal part of 

 the creature is enormous, Avhat is shown by the fact that the 

 just mentioned line behind the genital shield is even situated 

 in the anterior half of the whole length of the creature. 

 Behind the just mentioned line a pair of bristles ; in the 

 middle of the venter a pair of ditto ; then more baclvAvard a 

 transverse row of two pairs ; then a little before the anus a 

 pair ; further 3 pairs of marginal hairs ; one rod-like pair 

 aside of the cribrum and a ditto behind it, quite on the 

 posterior edge. Three minute circumanal bristles, a small horse- 

 shoe-shaped cribrum. Unprotected margin running all around, 

 narrow, bare. The peritrema long, becoming dorsal behind legs 

 II, reaching before coxae I. 



E p i s t m a (fig. 37). Hostrum comparatively small (fig. 

 34) ; dorsal side of it only marked (fig. 37) Avith two slightly 

 waving fine lines running from the styli backward, thus demar- 

 cating the median streak (real epistoma) from the maxillar 

 coxae. Anterior part (epistoma strictly taken) trapezoidal, Avider 

 posteriorly, with 3 mucros, of which the lateral ones short 



