380 PROCEEDINGS OF THE NATIONAL MUSEUM. vouxxvii. 



Stylo in feaiale rather .slender, tapering- clistally, and armed onl}" with 

 one long- apieal bristle. Substylar flap triangular, obtuse at apex, two 

 or three l)ristles at apex, and four to six on upper margin. Caudal 

 margin of eighth segment laterally with about eight to twelve lar^e, 

 stout spines, just before which are a similar number of smaller ones, 

 and some distance behind which are two parallel rows of similar but 

 fewer spines. 



In the male the antepj^gidial bristles are elevated on well-developed 

 tubercles. The upper claspers are small, slender, elliptical, and armed 

 on outer surface with about six large spines as long as the whole 

 organ, their bases close together and occupying about a third of the 

 outer surface. 



Length, female 5.5 mm.; male, 3.5 mm. Color, light brown. 



Type.—il2X. No. 6895, U.S.N.M. 



PULEX BOHLSII Wagner. 



Dr. Wagner described this species from a single specimen sent him 

 b}^ Herr Poppe. It is an American species collected in Paraguay by 

 Dr. Bohls, but the host is unknown. Wagner presents a drawing of 

 the whole insect, excepting the legs, and gives a thorough description, 

 so that it ma}' be I'eadily recognized when rediscovered. The vestiture 

 is very dense for this section of the genus. The distinctive characters 

 are given as far as possible in the s3mopsis. Wagner does not describe 

 the armature on hind margin of antennal groove, so that this character 

 was taken from his drawing. Neither does he iigure the stylet of the 

 female, although the individual illustrated was of this sex The pro- 

 portional lengths of hind tarsal joints are about 29-19-10-5-10. 



The median projection of the seventh abdominal tergite is a very 

 noteworthy character, ))ut slightly foreshadowed in irritans. It is 

 very distinct in the drawing of hoJdsH, in which, however, it does not 

 reach beyond one-half the length of eighth tergite. 



PULEX LUTZII, new species. 



Nearly related to I\ hoJdsU, which it was at lirst taken to be. A 

 detailed comparison proves it abundantly distinct according to the 

 description and iigure of hoJiUii given by Wagner. Dr. Lutz found 

 this species on Gt'lnon mttata at Stio Paulo in Brazil. 



The following characters are noted in addition to those given in the 

 S3'nopsis. 



On all the abdominal tergites there is a median dorsal spine, which 

 is stouter than the others on these segments. The pro-, meso-, and 

 metanotum ha\'e two transverse rows of bristles, those of the anterior 

 rows nuich weaker, the number in each row a])out 11-16. The 

 metathoracic scale has .two rows of 4 spines each. Only the first and 

 second alidominal tergites have the second row of smaller bristles, 



