﻿546 
  

  

  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  

  

  apex 
  of 
  the 
  sternite, 
  sinuate 
  and 
  tridentate 
  at 
  apex. 
  Genital 
  tube 
  

   dorsoventrally 
  flattened, 
  sides 
  subparallel; 
  apical 
  plates 
  short, 
  large, 
  

   concave 
  above; 
  styli 
  very 
  small, 
  flat, 
  set 
  upon 
  the 
  dorsal 
  inner 
  bases 
  

   of 
  the 
  apical 
  plates. 
  Receptaculum 
  seminis 
  sharply 
  curved, 
  nodulus 
  

   large, 
  ramus 
  and 
  ductus 
  receptaculi 
  close 
  together 
  but 
  distinct, 
  the 
  

   ductus 
  longer 
  and 
  pointed. 
  

  

  Figure 
  76. 
  — 
  Tosastes 
  cinerascens 
  Pierce: 
  a. 
  Female 
  genital 
  tube, 
  dorsal 
  view; 
  b, 
  female 
  

   genital 
  tube, 
  ventral 
  view; 
  c, 
  female 
  genital 
  tube, 
  lateral 
  view; 
  d, 
  eighth 
  sternite 
  of 
  female, 
  

   ventral 
  view; 
  e, 
  eighth 
  sternite 
  of 
  female, 
  lateral 
  view;/, 
  receptaculum 
  seminis; 
  g, 
  median 
  

   lobe 
  of 
  male 
  genitalia, 
  lateral 
  view; 
  h, 
  median 
  lobe 
  of 
  male 
  genitalia, 
  dorsal 
  view. 
  

  

  Male 
  genitalia 
  (fig. 
  76, 
  g, 
  h). 
  — 
  Median 
  lobe 
  moderately 
  heavily 
  

   chitinized; 
  in 
  profile 
  the 
  basal 
  half 
  rather 
  sharply 
  curved, 
  apical 
  half 
  

   tliin, 
  nearly 
  straight, 
  slightly 
  recurved 
  at 
  apex; 
  from 
  above, 
  sides 
  

   converging 
  from 
  base, 
  converging 
  more 
  sharply 
  about 
  apical 
  fourth, 
  

   apex 
  rounded; 
  lobe 
  very 
  shallowly 
  excavated 
  apically; 
  median 
  orifice 
  

   oval. 
  

  

  Type 
  locality. 
  — 
  Wenatchee, 
  Wash. 
  

  

  