200 PSYCHODIDJE. 



elongate, cylindrical, pubescent, of four obvious elongate joints. * 

 Antennae long and slender, 16-jointed; scapal joints short and 

 thick, the 2nd more or less spheroidal ; flagellar joints much 

 thinner and longer, the 1st usually much longer than any of the 

 others, which diminish gradually in length to the tip ; all the 

 flagellar joints distinctly verticillate. In at least some species 

 there is on each joint a pair of small distinctly geniculated spines 

 just before the middle.t Eyes oval, more or less emarginate, 

 separated in both sexes by a broad frons. Ocelli absent. Thorax 

 much arched, densely pubescent ; scutellum small ; metanotum 

 rather well developed. Abdomen elongate, linear, narrow, eight- 

 jointed, thickly haired. Genitalia of male consisting of three pairs 



Fig. 26.Phlebotcmus papatasii, Scop. $ . 



of clasping appendages, proceeding from two lateral common 

 stems : or they rni>y be described as forming a single pair of three 

 (vertically) branched claspers, working horizontally. The upper 

 pair is two- jointed, the first joint the longer and larger one ; the 

 second joint generally, but not always, pointed at the distal end, 

 but always bearing some stout chaetse ; the intermediate pair are 



* Some authors have claimed that there are five joints to the palpi, the first 

 very small, but until the question is placed beyond doubt it is preferable to 

 regard the first section as a basal cone, or in some cases as a constriction of the 

 first true joint. In Newstead's drawing of the palpi of P. minutus, Bond., a 

 small first joint, making five in all, is clearly shown. 



t Probably Grassi refers to these in his " here and there one can observe a 

 short hair curved and relatively thick," without recognising their true nature. 



