SPINIGER.—MACROPHTHALMUS. 205 
Hab. Nicaraaua, Chontales (Janson).—Gutana, Cayenne?; Brazin}. 
One female. This specimen nearly agrees with Herrich-Schaffer’s figure: the 
pronotum has four red tubercles on the disc of the anterior lobe, as well as a lateral 
tubercle on each side, and there are two similarly coloured oblique ridges on the dise 
of the posterior lobe. The juge are bright red and tuberculiform. The anterior and 
intermediate femora are asperate beneath and strongly incrassate. The venter is 
sharply carinate almost to the apex. The apical joint of the hind tarsi is as long as the 
two others united. 
MACROPHTHALMUS. 
Macrophthalmus, Laporte, Essai d’une class. syst. Hémipt. in Guérin’s Mag. Zool. 1832, p. 11; 
Stal, Enum. Hemipt. 11. pp. 109, 118. 
Macrops, Burmeister, Handb. der Ent. iil. p. 282 (1835); Amyot et Serville, Hist. Nat. Ins. 
Hémipt. p. 347; Stal, Hemipt. Afr, i. p. 121. 
A well-marked Tropical-American genus, containing three closely allied species, two 
of which are common to Ventral and South America. The name Macrophthalmus was 
changed by Burmeister to Macrops, on account of its being preoccupied in Crustacea 
(Latreille, 1829), he being unaware of the fact that Macrops had been used in 
Reptilia (Wagler, 1830); the genus, therefore, still requires a new name. Both 
Macrophthalmus and Macrops have been subsequently used in Coleoptera. These 
insects live under the bark of decaying trees, in forest-clearings, and prey upon freshly 
emerged Coleoptera &c. Our two species may be separated thus:— 
Frontal tubercles (jugze) very prominent, oblique, and subconical, the tubercles 
more or less uniting at the base and together forming a broad bifurcate 
elevation; corium with a black A-shaped mark before the apex: body 
elongate 2... 1 ee ee ee eee ee ew ew. histrionicus, Stal. 
Frontal tubercles not prominent; corium with a narrow sinuous transverse 
black fascia before the apex: body rather short . . . . . . . . . pallens, Lap. 
1. Macrophthalmus histrionicus. (Tab. XII. figg. 18, 18a, 2.) 
Macrops histrionicus, Stal, Stett. ent. Zeit. 1862, p. 456°. 
Macrophthalmus histrionicus, Stal, Enum. Hemipt. i. p. 113”. 
Hab. Mexico! (Mus. Brit.), Vera Cruz?; Nicaraaua, Chontales (Janson); Panama, 
Bugaba, Volcan de Chiriqui (Champion).—Co.omBia, Bogota ?. 
I have seen twenty examples of this species (including one of the Mexican types), all 
but two of them being from Chiriqui. This insect is larger and more elongate than 
M. pallens, and easily separable therefrom by the prominent horn-like frontal tubercies 
and the differently marked corium. In some specimens the frontal tubercles are ionger 
than in others, this being especially noticeable in the Panama examples. A specimen 
from the Volcan de Chiriqui is figured. 
