180 HEMIPTERA-HOMOPTERA. 
distance from the apex; the colour of the pronotum is somewhat variable, the coloured margins being 
broader or narrower; metasternum and abdomen yellow or red; legs pitchy. 
Long. 94 millim.; lat. 5 millim. 
Hab. Mexico, Teapa in Tabasco (H. H. Smith). 
A fair series. 
12. Tomaspis bifascia. 
Monecphora bifascia, Walk. List of Homopt. Ins. iii. p. 679 (1851)'. 
Monecphora angusta, Walk. loc. cit. p. 680’. 
Monecphora inferens, Walk. loc. cit., Suppl. p. 176 (1858) *. 
Hab. Norta America, Georgia?.—Mexico (Sallé?; Bilimek and Sichel, in Mus. 
Vind. Ces.), Ciudad in Durango 8100 feet (Forrer), Amula in Guerrero, Teapa in 
Tabasco (H. H. Smith); Brrttsq Honpuras, R. Sarstoon (Blancaneaux); GUATEMALA, 
Cerro Zunil (Champion); Costa Rica (Van Patten).—ANTILLES, Cuba and Jamaica 
(Signoret, in Mus. Vind. Ces.). 
I believe that the above synonymy is correct. In the typical 7. bifascia the trans- 
verse bands on the pronotum and tegmina are broader than in 7. angusta, and in 
TL. inferens the bands on the tegmina tend to break up and disappear, and occasionally 
only a reddish band on the pronotum is left; in all the varieties, however, the longi- 
tudinal band across the middle of the pronotum is distinct. In one specimen from 
Ciudad in Durango the hinder tegminal band is distinct, and the front one is absent. 
No locality is given by Walker! for his M. bifascia. 
There are several examples in our collection which I have doubtfully referred to this 
species, which is evidently variable; they are more ovate than the usual form of 
T. bifascia (which is, as a rule, oblong, although short-ovate specimens occur), and 
have the bands on the tegmina whitish and more obscure; the characteristic line, 
however, across the middle of the pronotum is always present. It is possible that one 
specimen from El Reposo, Guatemala (Champion), may prove distinct; but it can 
hardly be described unless more are discovered, and, at best, it would be a doubtful 
species. 
13. Tomaspis vilior, sp.n. (Tab. XI. figg. 11, 11a.) 
Ovalis, picea, unicolor, capite pronotoque leviter metallicis, illo metopidio haud producto, hoc sat nitido, 
longitudine sesquilongiori, rugose sculpturato; scutello fortiter transversim rugoso; tegminibus pronoto 
dilutioribus, perdense punctatis, parum nitidis, leviter albido-pubescentibus; corpore subtus nigro-piceo, 
pedibus piceis vel fusco-testaceis. 
Oval or suboblong, of a unicolorous pitchy colour, with very faint traces of four lighter spots at the margins 
of the tegmina, which are scarcely apparent unless the insect is examined closely ; head and pronotum 
shining, the former rather deeply excavate on the vertex, the latter closely and rugosely sculptured, with 
several strong impressions in front; scutellum broad in front, produced into a long point behind, trans- 
