NO. 1301 REVISION OF AMERICAN SIPIIONAI'TEIiA— BAKER. 391 



on hindloofs us in Pxtlex. One of the most sugjrestive characters is the 

 reduced oroup of teetli on inside of liind coxjo, composed of about 

 eight teeth in one nearly even row. It is the only species of the true 

 Ceratophyllus form in which I have seen these teeth. It should 1)0 

 noted tluit the second and third abdominal tergites possess four minute 

 teeth each, and the fourth and fifth two each. There are three ante- 

 pygidial spines on each side, one long one between two shorter. 



The end of the female alxlomen possesses comparati\ely few bristles. 

 The style is twice h)nger than wide at base, gradually narrowed to the 

 tip, where there is a long spine just before which on the upper margin 

 is a minute bristle. The substylar flap has a few longer bristles at end 

 and a few shorter on lower margin. Laterallv the eighth tergite 

 bears three long spines and a few bristles. Length, 2.5 mm. Color, 

 pale brown. Only females are known. 



CERATOPHYLLUS PERPINNATUS, new species. 

 Plate XIII, figs. 1-6. 



From the Queen Charlotte Islands the liev. rl. H. Keen also sends a 

 flea of remarka))le aspect, but of which he does not give the host. It 

 possesses one espct-ially salient character not recorded for any other 

 species of the order. The last tarsal joint has the middle pair of spines 

 dislocated toward the median line, but these are replaced toward the 

 outside by a supernumerary pair, making six pairs of the ordinarj' 

 spines on the underside of the last tarsal joint on all the legs. 



The single specimen is a male. The head is rather rounded and 

 bulging in front, with a sharpl}' defined frontal notch, though flattened 

 and thickened on top after the usual manner. The e3'e is large and 

 nearly circular. The gena is provided with three oblique rows of 

 bristles, the upper row of about 8 small, short bristles, the second 

 with four larger, and the lower with three long and stout bristles. 

 The antemial groove extends nearly to the upper margin of the head, 

 with which it is connected by a chitinous thickening. The bristles on 

 second antennal joint are small and few, and much shorter than third 

 joint. The hind margin of antennal groove is lined with minute scat- 

 tering hairs. On the hind margin of the head occurs the usual row 

 of about 14 bristles, those at the lower angles large and long. Tlic 

 disk of the vertex has two obliciue rows of bristles on eith(>r side near 

 the upper margin of the head, the upper row with about 4, the lower 

 with about bristles, all becoming smaller backward. The mandibles 

 extend to a little more than two-thirds of anterior coxa\ The first 

 joint of the maxillary palpi is somewhat longer than the second. 



The pronotum is armed with a transverse row of about 1*2 small 

 bristles on the disk and on the hind margin a ctenidium of about 3(1 

 rather slender and close-set spines. The mcsoiiotuiu and metanotum 

 have each a transverse row of al)out 12 bristles and rcplialad of this 



- Proc. N. M. vol. xxvii — <>3 20 



