176 HEMIPTERA-HOMOPTERA. 
distinctly rugosely reticulated: in Group 1 this character is very strongly marked; in 
Group 2 it is very slight; in Group 3 it varies, being sometimes strong and sometimes 
nearly absent; in Group 4 it is not strong, though usually distinctly traceable. 
The length is given from the front of the head to the apex of the tegmina folded ; 
the length of the body, as given by some authors, is very deceptive, as the segments of 
the abdomen shrivel and run up very considerably in dried specimens. 
Group 1. 
This group includes several fine and handsome species, the commonest apparently 
being the red-banded Tomaspis inca, which seems to be plentiful in Mexico, but to be 
found rarely in the adjacent countries. 
1, Tomaspis inca. (Tab. XI. figg. 1, 1a; 2, 2a, var.) 
Cercopis inca, Guér. Icon. Régne Anim., Ins. p. 368°. 
Monecphora inca, Walk. List of Homopt. Ins. iii. p. 675. 
Tomaspis inca, Stal, Stett. ent. Zeit. xxv. p. 63 (1864) *. 
Hab. Muxico!23 (Bilimek and colt. Signoret, in Mus. Vind. Ces.), Palmarito (Forrer), 
Chilpancingo, Mescala, Rincon, Amula, and Soledad, all in Guerrero (H. H. Smith), 
Mexico city (Hége), Jalisco and Atoyac (Schumann), Rinconada (Schaus), San Lorenzo 
near Cordova (M. Trujillo) ; GuatumMaLa, San Juan in Vera Paz (Champion), Escuintla 
(Mus. Vind. Ces.). 
In this species the sides of the pronotum are usually narrowly, but sometimes very 
broadly, red, and striking varieties occasionally occur. In the Vienna Museum there 
is a variety with the tegmina, except at the apex and base, unicolorous crimson-scarlet, 
and also three examples which are almost entirely black, with only faint indications of 
the usual red bands on the tegmina. A specimen from Mescala, Guerrero, and a variety 
from Mexico, in the Vienna Museum collection, are figured. 
2. Tomaspis semimaculata, sp.n. (Tab. XI. figg. 3, 3a.) 
Subovata, fronte (carina centrali metopidii sat fortiter producti lateribusque ante oculos subrufis vel rufis 
exceptis), pronoto scutelloque viridi-zneis, illo marginibus ab humeris rufis, distincte rugosius punctato, 
hoe fortiter transversim rugoso; tegminibus nigro-seneis, marginibus apicem versus lete rufis, tertia 
parte basali irregulariter flavo-testaced, pone hance maculis sextis flavo-testaceis, duabus ad medium, et 
quatuor ante partem apicalem fortiter reticulato-rugosam lineatim dispositis; corpore subtus cum pedibus 
ceruleo-enescenti, marginibus abdominis, coxis, genibus et parte apicali tibiarum rufescentibus. 
A large, subovate species, with the front parts greenish-eneous, shining; metopidium compressed and | 
produced, with a reddish carina; pronotum at its widest part rather broader than long, rugosely punc- 
tured, the anterior margin red; tegmina dull, very closely sculptured, with the apical third reticulate- 
rugose, the basal third somewhat irregularly flavo-testaceous ; immediately behind this there are two 
yellow spots, one on each tegmina, almost confluent with the basal colour, and at some distance behind 
these there are four distinct spots, two on each tegmen, in a row, the two side ones touching the margins, 
