74 



E. NEWSTEAD — THE PAPATACI PLIES (PHLEBOTOMUS) 



Male. — Dark form. Not observed. 



This form is not uncommon ; but is very much rarer than the dark form of 

 P. perniciosus. It does not differ structurally from typical pale examples so that 

 the following description of the palpi and antennae applies to both varieties. 



Palpi of five segments ; 1 very short, slightly dilated distally ; 2 a little longer 

 than the succeeding one : 3 decidedly broader than the rest ; 4 a little shorter 

 than 3 ; 5 as long as or slightly longer than 2 ; 1 to 3 hairy ; 4 and 5 scaly and 

 with a few fine hairs. Antennae (fig. 2, p. 58) of 16 segments ; 1 and 2 the stoutest, 

 the former with one side longer than the other, the latter bead-like ; 3 much the 

 longest, being equal in length to the last five segments together ; 4-13 each very 

 slightly shorter than the preceding one respectively ; 14 to 16, inclusive, more 

 strongly incrassate (swollen) basally than the rest ; all the segments with the 

 exception of 1 and 2 densely clothed with hairs, the longest of which arise from 

 the incrassated portion of each segment, except on the terminal segments which 

 are furnished with hairs of equal length ; 4 to 15, inclusive, also furnished 

 with a pair of stout spines (fig. 2), which are suddenly elbowed or bent at right 

 angles to their insertion so that for nine-tenths of their length they lie practically 

 parallel with the siu-face of the segment to which they are attached. 



The external genitalia of the male are much larger than those of any of the 

 other Maltese species ; a character which may be readily recognised in life, 

 under a low magnification. The morphological characters are shown in the 

 accompanying illustration (fig. 18). 



Length, 2" 5-2*65 mm. 



Fig. 18. — External genitalia of Phleliotomus papatasi}, $ ; sc, superior claspers ; ic, inferior 

 claspers ; ed, ejaculatory duct ; p, penis. 



