HEMIPTERA-HETEROPTERA. 321: 
. EKUTHYRHYNCHUS (p. 41). 
Euthyrhynchus floridanus (p. 41). 
To the localities given, add :—Mexico (Sallé), Chilpancingo and Xucumanatlan in 
Guerrero (H. H. Smith), Cuesta de Misantla (M. Trujillo), Tepic, Atoyac in Vera 
Cruz (Schumann), Orizaba (H. H. Smith & F. D. G.); Guatemana, Teleman and San 
Juan in Vera Paz (Champion); Panama, Volcan de Chiriqui 2500 to 4000 feet (Cham- 
pion). 
TYNACANTHA (p. 42). 
The single species I included in Tynacantha belongs to the following genus, Suppu- 
tius; a true species of Tynacantha has, however, since been received from the southern 
part of our region. 
1. Tynacantha splendens, n. sp. (Tab. XXIX. fig. 15.) 
Body above metallic purplish, with green reflexions particularly on the head and anterior portion of the 
pronotum ; lateral margins of the pronotum, apex of the scutellum, body beneath, and legs luteous ; 
abdominal incisures, two series of segmental spots on each lateral area of the abdomen—one marginal and 
one discal,—stigmatal spots, and a transverse spot on the metasternum, dark shiny green. Antennm 
ochraceous, second and third joints subequal in length; head and pronotum sparingly but coarsely 
punctate ; pronotum with the lateral angles subprominent, but not angularly produced; scutellum very 
obscurely punctate, excepting the apex, which is levigate; connexivum alternately ochraceous and 
green. Ventral spine and rostrum reaching the posterior coxe. 
Long. 9 millim. 
Hab. Panama, Bugaba (Champion). 
SUPPUTIUS, gen. nov. (To follow the genus Tynacantha, p. 43.) 
Allied to Tynacantha, but differing in the more elongate body, the lateral angles of 
the pronotum sometimes distinctly produced, the anterior pronotal lateral margins 
denticulated, and the second joint of the antenne distinctly longer than the third; 
other characters as in Tynacantha. 
The late Dr. Stal, who correctly diagnosed the genus Zynacantha (Ofv. Vet.-Ak. 
Forh. 1867, p. 497), certainly included in the enumeration of its species at least one 
which differs in the above characteristics, and which, following him, I thus classified 
in this work. I now propose the above genus to contain that and another new species 
which is here described. 
1. Supputius pulchricornis. 
Tynacantha pulchricornis, hu}. op. p. 43. 
2. Supputius typicus, n. sp. (Tab. XXIX. fig. 17.) 
Very pale ochraceous, with coarse dark punctures; outer margins of the head—excepting the apex of the 
central lobe,—eyes, sublateral margins to the pronotum, a foveate spot at each basal angle of the scutellum, 
BIOL. CENTR.-AMER., Rhynch., December 1889. 41 
