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ENTOMOLOGICAL NEWS. 



[Dec., '08 



Phthiracarus flavus n. sp. 



Light yellow, darker parts light yellowish 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. i. 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 





