8 



A Monograph of Culicidae. 



less developed spine,* which is thought by Professor Felt to 

 be the rudiment of a ventral second segment analogous to 

 the claspette (c) of the basal segment. The term claspette 

 designates certain peculiar organs occurring on the ventral 

 surface of the basal lobe, it may be represented by one or 

 more spined tubercles or by a conspicuous basal spined lobe 

 and a longer acute one near the apex of the basal segment. 



Fig 2. 



Diagram of <$ genitalia. 



tes, Claspers ; h, harpes ; lip, harpagones ; c, claspette ; bes, basal lobe 

 si, setiferous lobes (after Felt). 



The terminal segment varies very much in different forms, some 

 being most striking appendages (Dendromyia, Taeniorhynchus, etc.). 

 Between the clasps lie the harpes (*), normally forming the next 

 largest structures, they arise from or near the base of the 

 claspers, they are placed ventrally and sub-median. They are 

 very diverse in form and in some groups are of two segments 

 each. They are either very small or absent in Aedeomyinac. 



* This may be absent in some species, double in others. 



