3U4 NoVITATEa ZOOLOQICAE XXII. 1915. 



3. Leptopsylla hesperomys Baker (19U4) 



We have a 3 from Ithaca, New York, which appears to belong to this species. 

 /.. hesperomys was originally described from the female sex only, and we have a 

 paratype from Dr. Baker's collection. The <? being as yet nndescribed, the iollowing 

 notes may be found useful : 



L. hesperomijs is closely allied to L. selenis Roths. (1906), but differs in the 

 modified abdominal segments and in the spatulate genal process. Moreover, the 

 frons of the head usually bears in selenis one lateral bristle more than in hesperomi/s. 



(S. The eighth abdominal sternite is excised at the apex, the lobe situated above 

 this sinus being rounded and bearing three long bristles and a small one. The 

 movable process of the clasper is larger than in selenis, and its bristles somewhat 

 smaller. The ninth sternite is pointed and bears a row of ventral bristles, the 

 longest bristles of this row also being shorter than the longest bristles of the ninth 

 sternite of selenis. 



The above-mentioned paratype ( ? ) agrees with Baker's description, except for 

 some statements which are obviously erroneous— the me.sonotum, e.(/., not being 

 twice as long as the metanotum, as stated in the description. The stylet, which is 

 said to be less than twice as long as it is broad and to bear several small bristles 

 on the lower margin, is really but slightly longer than broad, and has only one 

 lateral bristle. The seventh sternite, the shape of which was not noted by Baker, 

 is deeply sinuated, the lobe placed above the sinus being triangnlar with the tip 

 rounded" off ; the lower lobe is much broader, but we cannot state its length, as the 

 lobe is much torn in our specimen on both sides of the body. The segment bears 

 six long bristles on one side and eight on the other. The receptaculum seminis has 

 an elliptical head which almost gradually merges into the tail. 



4. Leptopsylla adelpha sp. nov. (text-fig. 4) 



? . Very close to L. selenis and hesperomys, but differs as follows : 



The genal process is spatulate, but is less widened at the ai)ex than in Ij. 



Fig i.—Lejitoptijlla adrlpha. 



hesperomys. The seventh abdominal sternite bears a sinus somewhat deeper than 

 in /.. selenis— i.e. much less deep than in L. hesperomys. The lobe placed above 



