450 ENTOMOLOGICAL NEWS. [Dec., ’08 
Phthiracarus flavus n. sp. 
Light yellow, darker parts light slicolak brown; integument of 
cephalothorax and abdomen pitted. 
Cephalothorax one-half as long as abdomen and twice as long as high, 
rounded in front. The cephalothorax bears three pairs of prominent 
bristles; anterior pair about two-thirds as long as the cephalothorax 
is high; middle pair, which is situated at about the middle of the dorsal 
surface of the cephalothorax, slightly larger; posterior pair, which 
is situated above the pseudostigmata, two-thirds as long as the cephalo- 
thorax. Pseudostigmata situated approximate to the posterior ventral 
surface of the cephalothorax, oval in shape; pseudostigmatic organ 
two-thirds as long as the posterior pair of bristles; without head, but 
slightly pectinate towards the distal end. Mouth parts large, stout, and 
prominent. There is a very slight ridge running forwards from the 
pseudostigmata to the anterior margin of the cephalothorax. 
Fig. 1.—Phithiracarus flavus n. sp., side view, x 80. 
Abdomen pointed behind; ventral margin strongly convex, anterior 
margin with a deep notch to allow room for the pseudostigmata and 
pseudostigmatic organs. The abdomen is deeply pitted; pits of about 
the same size and arranged in longitudinal rows. Abdomen with at 
least nineteen pairs of prominent bristles above; a row of five bristles 
on either side of the median plane; another row of five bristles just 
below this row on either side of the abdomen; a pair of bristles just 
posterior to the notch in the anterior margin of the abdomen; a 
similar pair situated about their length posterior to this pair; a pair 
siuated about one-half the distance from the anterior to the posterior 
end of the abdomen and their length above the ventral margin of the 
same; three pairs of bristles situated towards the ventral margin of 
dorsum, and three pairs on the posterior ventral margin. The genital 
and anal covers together extend almost the entire length of the abdo- 
men; inner margin of genital covers straight; inner margin of anal 
