A. C. OllDRMANS, NOTKS ON ACAEI. 41 



tratorum (L.), d", and fig. 21), which, like in the named 

 species, is a lying oval. Jugular shields small, trian- 

 gular, near the coxae I. Sternometasternal shield 

 triangular, top backward, with slightly concave front-edge, 

 badly chitinized anterior margin, so that the first pair of 

 sternal hairs seems to be planted before the schield. I n g u i- 

 nal shields small, round. Peritrematal shields 

 absent or at least so narrow that they do not show. Anal 

 shield oval, quite posteriorly. Hairs; all the hairs on 

 the ventral side are bristles; viz. three pairs of sternal liairs, 

 one pair of metasternal hairs, one pair of genital hairs (be- 

 tween coxae IV), about 16 pairs of ventral hairs and the 3 

 small circumanal hairs. C r i b r u m present. Pe ritrema 

 reaching the capitulum (fig. 39). 



Epistoma. Dorsal side of capitulum (fig. 43) with only 

 a few markings consisting in fine lines, one transversal, three 

 oblique ones and two in the anterior part almost S-shaped 

 ones. Laterally a pair of chitinous bars, one on each side. 

 Anterior part triangular, longer than wide, with concave sides 

 which are two times deeply excavate, so that there are 4 long 

 fine teeth, curved slightly inward, two on each side. Sty li 

 normal. 



Mandibles short, reaching, when wholly retracted, the 

 secord pair of dorsal rod-like hairs (fig. 39, dotted line). 

 Chelae (fig. 44) rather robust, stronger than in P. Cole- 

 optratorum (L.), with distinct tibial and tarsal sense- 

 organ, distinct rudiment of demarcation between tibia and 

 basitarsus before the tibial sense-organ ; upper jaw with three 

 incisors before and three canine teeth behind the tarsal sense- 

 organ, which seems to be placed in a tumbler-shaped hole; 

 and with a long and low blade-like molar. Lower jaw with 

 two incisors and with two long and low canine teeth, which 

 themselves have a denticulate edere. P u 1 v i 1 1 u m:arow of hairs. 



Maxillae. Under-side of pseudocapitulum (fig. 42) with 



