76 



E. NEWSTEAD — THE i^APATACI FLIES (PHLEBOTOMUS) 



but as no sections were cut it is impossible to determine their true structure by 

 examining them in optical section only. Thoracic and abdominal spines (PI. I, 

 fig. 10) much longer and stouter than those in the earlier stages ; apices 

 narroiely dilated and transparent, the remaining portion clothed with minute 

 stiff hairs ; these hairy spines are arranged in more or less regular transverse 



PROFILE 



Fig. 19. — 'S.eadi ot\a.x\s, ot PhUhotonniJi pajratcmi. aw/, antenna ; mrf, mandible ; mp, 

 maxillary palpus ; Ip, labial plate. 



rows, there being four or five on each side of the median line. Head with 

 several large spines similar to those on the abdominal segments, bvit they are 

 pointed instead of being dilated at the apex ; besides these hairy spines there 

 are also several rather long stout hairs, four of which are frontal. Sucker feet 

 similar to, but relatively larger than, those in the first instar. 



Length, 2-3"28 mm. 



Pupa. (PI. I, figs. 11, 12). When empty, clear ochreous buft'. Eyes in life 

 black. Abdomen curved upwards distally in varying degrees, but not apparently 

 so distinctly S-sbaped as in P. perniciusus ; considerably wider in the thoracic 

 region than at the distal segments of the abdomen ; integument clothed 

 with minute squaraose spines (PI. I, fig. 15), which are most conspicuous on the 



