TRAPEZUS. 217 
the lateral margins of the pronotum, a character which varies in extent among the 
European species, and which is particularly minimized in the Texan species 7. rufipes, 
Stal. In 7. caliginosus the extent of this ampliation may be described as of a somewhat 
intermediate character. 
TRAPEZUS, n. gen. 
The characters of this genus are in the main those of Trapezonotus; but differential 
ones are found in the length of the head, which equals, or is a little longer than, the 
width ; the head, including outer margin of eyes, is distinctly narrower than the anterior 
margin of the pronotum ; the anterior femora are thickened, but not spined ; and the 
colour is shining, not opaque. 
1. Trapezus trimaculatus, n. sp. (Tab. XX. fig. 4.) 
Head piceous, apex ochraceous ; eyes dull brownish. Antenne sparingly pilose, with the first and second joints 
ochraceous, the third and fourth piceous; second and fourth joints subequal in length, third joint a little 
longer than basal, which slightly passes the apex of head. Pronotum with the anterior lobe black, with 
a few scattered punctures ; posterior lobe ochraceous, with fuscous suffusions, and sparingly but distinctly 
punctate, the margins ochraceous and impunctate. Scutellum black, very finely but sparingly punctate, 
with three linear ochraceous spots, one at apex and two lateral about centre. Corium ochraceous, 
coarsely and darkly punctate, the punctures arranged in linear series, between which the ground-colour 
appears as pale ochraceous fascie, of which there are two claval, two subclaval, and two discal, between 
which near apical margin, which is also pale ochraceous, are two elongated and irregular pale ochraceous 
spots; lateral margin also pale ochraceous. Membrane pale fuscous, the apical margin pale hyaline, the 
base somewhat ochraceous. Body beneath piceous; posterior angles of pro- and metasternum ochraceous, 
lateral margins of sternum narrowly dull ochraceous, Legs ochraceous. 
Long. 33 millim. 
Hab. GuateMa.a, near the city (Champion). 
2. Trapezus apicatus, n. sp. 
Closely allied to the preceding species ; but scutellum with the apex only ochraceous, and antenne with the 
second joint distinctly longest, and third and fourth joints subequal in length; the third joint has only 
the apex piceous. 
Long. 33 millim. 
Hab. Mexico, Cornuvacca (Bilimek, Mus. Vind. Ces.) ; Guatemala, San Gerénimo, — 
Quezaltenango, Cerro Zunil, near the city (Champion). 
3. Trapezus fasciatus, n. sp. (Tab. XX. fig. 5.) 
Allied to 7’. apicatus, but larger ; antenne longer, but with the same relative length of joints; pronotum more 
narrowed anteriorly and more concave at base. Corium with a short subclaval fuscous fascia, a wide trans- 
verse black fascia crossing at inner angle, and apical margin and angle also widely black. 
Long. 4 millim. 
Hab. Guaremata, San Isidro, Pantaleon (Champion); Panama, Volcan de Chiriqui, 
2000-3000 feet, Bugaba (Champion). 
BIOL. CENTR.-AMER., Rhynch., October 1882. 28 
