D. Keilin and Cr. H. F. Nuttall 
307 
Family Q (F 3 generation). 
This family consists of 100 17 $$ and 13 hermaphrodites. 
SPECIMENS 137 -138, namely 2 examples, are of £ type with $ characters 
consisting of fragmented dorsal bands and the structure of leg I; one 
specimen has a bipartite ventral plate, the posterior abdominal lobes 
showing several irregular protrusions. 
inyag. Q 
Text-fig. 22. Pediculus humanus, cross between capitis and corporis. Specimen 149, of inter¬ 
mediate type between f and F 3 generation, with reduced gonopods. prolapsed vagina and 
protruded genitalia. (K. & N. del.) 
SPECIMENS 139-148, namely 10 examples, are of § type with $ characters 
comprised in the $ structure of leg III and the more or less rudimentary 
$ genitalia in the form of unilateral, bilateral, or median invaginated or 
evaginated structures bearing sensory hairs. 
SPECIMEN 149 (Text-fig. 22) is of interest in being of intermediate type 
between <£ and £ and showing a protruded vesica penis. Dorsal bands normal, 
leg I as in leg III with very small femoral spur. Dilator and basal plate 
protruded with vesica penis which bears a normal penis and statumen penis. 
The ventral plate is normal, separate from the reduced $ plate. The rudi- 
