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R. NEWSTEAD — NOTES ON PHLEBOTOMUS, WITH 



pedicel is, so far as I can ascertain, extremely short ; in P. papatasii (fig. Id) 

 they are distinctly spathuliform, with the pedicel long and strongly curved. In 

 P. squamipleuris (fig. \i) the spines are similar to those found in P. papatasii, 

 but they appear to be more gradually dilated distally and have relatively shorter 

 pedicels. These organs are common to both sexes and are probably sensory in 

 function ; but they are so easily deciduous that they can rarely be seen, though 

 the position occupied by them is generally indicated by a compound group of 

 circular cicatrices clearly showing the point of attachment of the spines with the 



integument. 



I have also discovered the presence of hirsute glands (fig. 2c) in the antennae 

 of both sexes in all of the species, with the exception of P. antennattfs, sp. nov. 



Fig. 2. — Antennae of Phlebotomun. 



a and b, proximal and distal segments respectively of antenna of P. minutus. Rond., $ ; c, 

 hirsute glands ; d and e, distal and proximal segments respectively of antenna of P. antennatus, 



Newst. 



(fig. 2 d, e). They are, so far as I can ascertain, present only on the last three 

 segments, but are rarely visible on the terminal one. In optical section they 

 appear crateriform in shape and the lip is fringed with fine hairs. It is impos- 

 sible, without cutting sections of these organs, to add any further particulars 

 regarding them, and, in the absence of properly fixed material, this cannot be done 

 at the present juncture. 



The method adopted in preparing these insects for microscopical examination 

 was precisely the same as that which was described by me in this Bulletin 

 (Yol. II, p. 13). Staining is essential, as thereby the wing venation and the 

 minute structural characters are much more clearly defined. In submitting 



