60 
or by a conspicuous basal spined lobe and a longer acute one 
near the apex of the basal segment. The terminal segment 
varies very much in different forms, some being most striking 
appendages (Dendromyia, Taeniorhynchus, etc.) Between the 
clasps lie the harpes (h), 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 iEdeomyina?. The harpagones 
(hp) are a pair of small clamping organs lying above the harpes 
and within the base of the clasps. They are frequently 
strongly curved and terminated by a, stout recurved hook. The 
unci consist of a pair of processes on the ventral margin and 
may be easily seen in Culicina?, but seem to be absent in 
Anophelinge. In certain groups (as Chrysoconops) they are 
stout and provided with a peculiar series of chitinous teeth. 
The setaceous lobes (si) are part of the rudimentary eighth 
segment. They are in the form of chitinous lobes with a series 
of stout, chitinous spines. 
i 
1. . * 
f Uidtrruiu yf iarva, 
V \i->t -runt . a,. i.tH-ritl Stilt ; ,t . aj.k-nl ^£<it;t-» ; B, thorax; <", «!»S. ,fni ual .-<:.im'u\- : 
l>. -ipii..;. ; K, }KnivH »! Mi')i<-ii ; Ej, i«.vU-n scales; if, amU.giUs; 0. tmnh »i 
-Ut i ui:i«.-nt ; <m, foiii!> ; if, nus ; !, iXh swntsat ; ami Utl.ia y iUc 
K tufi. . - 
(Reproduced from the Monograph of the Culicida; by permission of 
the Trustees of the British Museum.) 
LARVAL CHARACTERS. 
The characters used for identifying the larva? of Anophelinae 
made most use of are (i) the frontal hairs of the head ; (ii) the 
structure of the antenna? ; and (hi) the structure of the palmate 
hairs. In the Culcina? the chief characters of diagnostic value 
are (i) the form of the clypeus ; (ii) the structure of the antenna? ; 
(iii) the form of the siphon ; and (iv) the number and structure 
of the spines forming the pecten on the siphon and on the so-called 
comb at its base. 
