NOVITATES ZOOLOGICAE XXII. 1915. 305 



tliis sinns is triangnlar and snbacnminate, being much narrower and longer than in 

 selenis, and mncli shorter than in hesperomi/s ; the lower lobe projects a little more 

 than the upper. There are four antepygidial bristles, of which the upper one is 

 short. The narrow apical portion of the stylet is shorter than in the two species 

 mentioned, the lateral bristle therefore being closer to the apical one than in those 

 species. The long bristles of the tibiae and tarsi are shorter, as is also the ease 

 with the fourth hindtarsal segment, particularly than in selenis. The receptaculuni 

 seminis is longer than in hcsperomi/s and selenis. 



One ? from Paradise, Arizona, taken on Mus spec, on November 21, 1913, by 

 0. C. Duffner. 



5. Leptopsylla himalaica sp. nov. (text-figs. 5 and 6) 



c? ? . Belongs to the gronp with two genal spines. 



Head. — Frons angulate as in L. viusculi, with an anterior row of eight strong 

 bristles, all of which are drawu out into a long thin point ; in front of the vestigial 

 eye there are two long bristles, and between them and the anterior row another row 

 of four, all these bristles being strong. Occiput with four rows of bristles and one 

 or two additional bristles indicating a fifth row. Upper genal spine slightly curved 

 upwards, completely concealing the genal process and being slightly longer than 

 the lower, which is a little curved downwards. The genal edge does not project as 

 a triangnlar lobe below the genal spines. The labial palpus reaches beyond the 

 centre of the forecoxa. The bristles of the second segment of the antenna are 

 short in both sexes. 



T//ora:r. — The pronotum bears a comb of twenty long spines and a row of 

 twelve bristles, on the two sides together. The mesonotum has altogether five or 

 six rows of bristles, the anterior rows being irregular, the mesopleura bearing about 

 ten bristles and the metanotum three rows. The metanotum, moreover, has four 

 short apical spines on each side. 



Abdomen. — The tergites bear two rows of bristles ; the short apical spines on 

 segments I-V are as follows (on the two sides together) : 6, 5, 4 or 5, 4, 1 or 2. 

 The sternites of segments IlI-VI have on the two sides together eight bristles in 

 the ? and four to six in the S. Three antepygidial bristles, of which the upper and 

 lower ones are much shorter than the middle one in the S, whereas in the ? the 

 lower bristle is nearly as long as the central one. In the ? , moreover, this lower 

 bristle is placed at a considerable distance from the others. 



Legs. — Similar to those of L. musculi. 



Modified segments.— S. The eighth tergite (text-fig. .5, VIII. st.) bears four or 

 five bristles below the stigma. The eighth sternite is abruptly narrowed in the 

 centre into a somewhat tongue-shaped lobe ; proximally to this lobe there are two 

 or three long bristles, whereas the lobe itself bears three long bristles, two or three 

 short ones proximally to these, and some very slender bristles at the ronnded apex. 

 C'lasper longer than in L. musculi. The finger (F) is evenly curved at the base and 

 of nearly the same width throughout ; it bears three long bristles placed at almost 

 equal distances from one another, there being a shorter bristle between the first and 

 second, and another between the third long one and the apex. The horizontal arm 

 of the ninth sternite is slender ; and its apex is rather strongly curved upwards, and 



there is a row of thin bristles at the bend, as shown in the figure. ? . The seventh 



sternite (text-fig. 6) is deeply sinuate, the upper lobe being narrow and long, and 

 the upper margin of the large lower lobe strongly slanting. There are two rows of 



