182 THE ENTOMOLOGIST. 
tt Seutellum white. - - 95. angustatus, 83—4 lines (a). 
(Wesmael says the abdomen is a little more thickly punctated than 
in vestigator.) 
++ Post-petiole more or less red. 
§ Metathorax with 5 superior areas. 
88. vestigator, 4—5 lines (A, t, l.) 
§§ Metathorax with 3 superior areas. 
91. callicerus, 832—4 lines (1, a.) 
C. Middle area of post-petiole smooth (males). 
a. 2nd—d5th abdominal segments red, 6th—7th white 
104. ridibundus, 3—4 lines (h, l, a.) 
b. Margin of middle segments red or piceous.. 
76. varipes, 2—38% lines (I.) 
Doubtful species ; structure not described 
A. Females. 
. Scutellum fulvous; ring of antenne reddish yellow; tibie red, 
apex of hinder one black. 
Segments 2 and 3 tawny red; 5, 6, 7 marked with white. 
125. fulvoscutellatus, 6 lines. 
_ 
2. Scutellum white or whitish. 
Segments pale saffron, remainder each with a large triangular white 
spot; legs red; knees, hind tarsi, and apex of hind tibie 
black. —- - - - 139. quadrinotatus, 4 lines. 
3. Segments 2 and 8 red, base of 3rd black; apex of last 3 segments 
with a white spot; tibiz yellow; apex of hinder black; 
vertical orbits of eyes pale. 117. concinnatorius, 7 lines. 
B. Males. 
Antenne black. 
Femora, tibie, 2nd and 38rd segments of abdomen, red; sides of 
4th—6th glaucous, 7th with a dorsal macula of the same 
colour - - - - - 127. interruptus, 6 lines. 
«& Antenne with white marks in the centre. 
2nd—4th abdominal segments chestnut; 6th—7th whitish yellow ; 
greater part of legs black, front ones partly pale. 
118. cubicularis, 34 lines. 
% 
Sscrion 7.—Scutellum black ; abdomen red and black; apex pale marked. 
A. Head black, orbits not pale; in analis with a thin red line 
(females). 
Antenne tricoloured; abdomen red; apex black, marked with 
white. 
a. Legs (including coxee) red, apex of hinder black, middle area of post- 
petiole aciculate. - : 45. latrator, 22—3% lines. 
b. Tibie red, apex of hinder black, middle area of post-petiole with 
no sculpture. = - - - - 47. spurius, 2% lines. 
B. Head with the orbits more or less pale (females). 
* Ist abdominal segment entirely black; greater part of legs dark. 
+ 2nd and 8rd segments more or less sordid chestnut. 
65 gemellus, 54—7 lines. 
}+ 2nd—4th segments chestnut red. - 118. cubicularis, 33 lines. 
** Ist and 4th segments more or less red, 2nd and 38rd entirely so. 
