ON THE GENUS PHLEBOTOMUS. — PART IV. 



309 



generally curved distally and a little more than half the length of the longer outer 

 one. The long inferior clasper extending beyond the distal end of the proximal 

 segment of the superior clasper by one-fifth of its total lengtL 



Length, 3 mm ; length of wing, 1*9 mm. 



Female. — General facies similar to that of the male, but larger and generally 

 more robust. Palpi precisely similar to those of the male. Antennae with the 

 tip of the 4th segment extending very sUghtly beyond the proboscis ; the 3rd 

 segment relatively shorter than the corresponding segment in the male ; the paired 

 geniculated spines (fig. 2, c) extending considerably beyond the middle in most 

 of the segments, while those on the 14th and 15th, respectively, extend to the 

 articulation of the succeeding segment ; on many of the segments the spines are 

 accompanied by a relatively large and somewhat lunular-shaped subcutaneous 

 structure (? gland). Wing (fig. 2, d) much broader than that of the male, with the 

 hind margin also much more strongly arched. Connective cuticle between the 

 tergites and sternites (fig. 2, e) with a very regular diagonal pattern formed by 

 equidistant groups of minute hairs, each group composed of four hairs. 



Length, 3 '7 mm. ; length of wing, 2*4 mm. ; length of leg ii, 3 '9 mm. ; length of 

 3rd segment of antennae, 0'3 mm. 



North East Persia : Meshed, vi. 1918, 5 ^S, 3 $$ {Major J. A. Sinton, V.C.). 



Phlebotomus sergenti, var. 



Male. — ^DiSering from typical P. sergenti, Parrot (I.e.) in having the 3rd segment 



of the antennae (fig. 3, a) relatively very much shorter and with the distal, bifur- 



|cating, spine-bearing process of the superior claspers (fig., 3 b) markedly unequal 



in length, the terminal process being about three times the length of the other. 



Pig. 3. Phlehotomus sergenti, var. r^ : a, proximal segment of the antennae ; 



h, h, distal segments of the superior claspers. 

 Phlehotomus sergenti. Parrot, ^ : c, proximal segments of the antenna ; d, 

 distal segment of the superior clasper, 

 All the figures are drawn to the same scale. 



