180 
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THE ENTOMOLOGIST. 
Margins of cheeks descending more or less below the base of the 
mandiblés ; 2nd and 3rd segments of abdomen red. 
Tarsi and tibie red; apex of hinder one black. 
Scutellum white. - - - 35. bucculentus, 6—9 lines (a). 
Scutellum whitish yellow. - 37. gracilentus, 5—6 lines. 
Tibi whitish straw, apex of front one red-brown, apex of hind one 
black. = - - , - 86. suspiciosus, 6—9 lines (a). 
Margins of cheeks not dilated below the base of the mandibles. 
2nd and 8rd abdominal segments red. 
Hind tibiz in the middle straw or whitish straw-coloured. 
* 3rd segment with a short black basal band. 
38. terminatorius, 6—9 lines. 
* 8rd segment with the black band; this and the 2nd, chestnut 
marked with black, or entirely black. 
39. melanotis, 7—8 lines (a). 
Hind tibiz red or reddish straw-coloured at the base. 
Ist to 8rd abdominal segments red. - 46. multipictus, 3 lines. 
2nd and 3rd segments red, 4th sometimes partly so. 
42. luctatorius, 6—8 lines. 
Hind tibie black. — - - 48. militaris, nearly 4 lines. 
Subdivision II].—Antenne setaceous, after death incurved or subinvoluted, 
apex distinctly attenuated; mesothorax and _ scutellum 
-generally much higher than the metathorax; hinder coxe 
not pubescent beneath ; 2nd and 3rd abdominal segments red, 
the 3rd in both sexes generally transverse. 
Scutellum yellowish or white. 
Gastroceli of 2nd segment of the abdomen rather large, the space 
between them equal to the width, or only a trifle wider than 
the middle area of the post-petiole. 
Femora black. 
Spot on coxe and base of tibize yellowish, especially the hinder one. 
48. primatorius, 10—11 lines. 
Tibiz red, apex of hinder one and coxe black. 
53. formosus, 5% lines. 
Greater part of femora red. 
Hind knees black. - - 50. gracilicornis, 4—5} lines (a). 
Hind knees not black. 
Middle area of metathorax subquadrate. 
52. quadrialbatus, 4—5 lines. 
Middle area of metathorax wider than long. 49. bellipes, 74 lines. 
* Gastroceli of the 2nd segment smaller, the space between them 
wide, mostly wider than the middle area of the post- 
petiole. 
2nd and 3rd abdominal segments red. 
Tibie red, yellow in the middle. 54. caloseslus, 5—6 lines (a). 
Tibiz red, apex of hinder one black. 
From the base of 2nd segment to the apex of the 5th the sides are 
parallel. - : - : 56. subcylindricus, 6 lines. 
Abdomen not thus narrowed in the middle. 
Upper margin of the collar sordid white. 55. ce@dator, 4—4} lines. 
