01* TItE MALTESE ISLANDS. 73 



Segments each provided with a pair of very large tubercles (PL II, fig. 5), the 

 tips o£ which are furnished with a pair of broad flat appendages ; integument 

 thickly covered with squamose spines (PI. II, fig. 4). 



The larval skin attached to the pupa does not present any morphological 

 differences from that of P. papatasii, as far as one can gather from its shrivelled 

 condition. It possesses the same kind of caudal bristles and hairy body-spines. 



Phlebotomus papatasii (Scopoli). 



Bibiu papatasii, Scopoli, Deliciae faun, et flor. Insubriciae, I, p. 55, 



PI. XXII, fig. B. a. b. (1786). 

 Cyniphes molestus, Costa, Storia dei lavori dell' Acad. Aspir. Natural., Artie. 



Zool. (1840) ; id., Annali dell'Acad. Aspir. Natural. I, p. 4 (1843). 

 Hennassoii minutus, Loew {nee Rondani), Stettin. Ent. Zeit. V, p. 115, PI. I, 



fig. 1-5 (1844). 

 Phlebotomus papatasii, Grassi, Mem. d. soc. Ital. d. Sci. (3) XV, p. 353 (1907). 

 This insect has been described so frequently that it seems unnecessary here to 

 do more than add such particulars as have hitherto been overlooked, or 

 imperfectly dealt with. In the first place it may be noteworthy to state that 

 there are two distinct colour varieties of this common and widely distributed 

 species : — 



(1.) A imiformly pale form, which may be considered typical ; 

 (2.) A form which differs from the foregoing in having a dark coloured 

 fringe to the costa and hind margin of the wing ; herein described as 

 the dark form. 

 Female. — Typical pale form (immediately after death). — Almost uniformly 

 pale translucent ochreous, thorax with a long dull red-brown median stripe, and a 

 single spot of the same colour on either side, near the front margin of the thorax. 

 Hairs on all parts of the body greyish, their arrangement similar to that of the 

 male. Wing relatively broad (fig. 4, p. 62). Wing-fringe not markedly darker 

 than the hairs on the disc of the wing. 



Male. — Typical pale form (immediately after death). — Colour similar to that 

 of the female. Clypeus with a tuft of 8-10 hairs ; head with a loose tuft, some 

 of the hairs curving forwards, others backwards ; tuft on nape of slightly longer 

 ones, chiefly curved forwards. Thorax densely clothed ; the hairs arranged in 

 loose tufts. Wing much narrower than in the female (fig. 4, p. 62). Abdomen 

 uniformly hairy, with small tufts on the dorsum arising from the apical margin of 

 each segment ; superior claspers densely hairy, with a few black hairs intermixed 

 with the pale ones ; these hairs are easily deciduous, with the exception of a 

 large tuft which is more or less permanent in examples mounted in Canada 

 balsam. 



Female. — Dark form. General colour similar to that of the pale form. 

 Wing fringes distinctly smoky grey ; some of the hairs on the veins are also 

 dark grey or smoky grey. 



