 UMBONIA. | 35 
2. Umbonia ataliba. (Tab. III. figg. 14, 14a.) 
Umbonia ataliba, Fairm. Ann. Soc. Ent. Fr. sér. 2, iv. p. 278, t. 6. fig. 1}. 
Umbonia lativitta, Walk. List of Homopt. Ins. ii. p. 520°. 
Hab. Costa Rica, Caché (Rogers) ; Panama (Boucard), Volcan de Chiriqui (Champion). 
—SovutH America !, Brazil 2. 
The males, as a rule, appear to be considerably smaller than the females. A specimen 
from Panama is figured. 
8. Umbonia pyramidalis. 
Umbonia pyramidalis, Fairm. Ann. Soc. Ent. Fr. sér. 2, iv. p. 2777. 
Umbonia reducta, Walk. List of Homopt. Ins. ii. p. 520°. 
Hab. Panama, Volcan de Chiriqui 3000 to 4000 feet (Champion). — Amazons, 
Para ?; Braziu 1}. 
This species, of which one male specimen has been received from Chiriqui, is very 
closely allied to U. ataliba, and may prove to be merely a variety of that species; it is 
rather smaller, and has a black marking on the dorsal horn in front and behind, which 
is sometimes absent. U. pyramidalis and U. ataliba may be distinguished by the long 
sharp dorsal horn and the long convex metopidium, which arises from the fact that the 
horn is set some way back between the shoulders, and forms a somewhat abrupt angle 
with the metopidium instead of gradually sloping into it. 
4. Umbonia spinosa. 
Membracis spinosa, Fabr. Syst. Ent. p. 675 (1775) °. 
Centrotus spinosus, Fabr. Syst. Rhyng. p. 177. 
Hoplophora spinosa, Germ. Rev. Ent. Silb. iii. p. 243°. 
Umbonia spinosa, Fairm. Ann. Soc. Ent. Fr. sér. 2, iv. p. 276*; Walk. List of Homopt. Ins. ii. 
_p. 519°. 
Membracis armata, Oliv. Encycl. Méth. vii. p. 668 °. 
La Cigale armée, Stoll, Cig. p. 83, t. 21. fig. 116 (De Piekdraagster) ’. 
Hab. Guatemaa, Teleman in Vera Paz, San Isidro (Champion); Panama, Bugaba, 
Volcan de Chiriqui 2500 to 4000 feet, Pefia Blanca 3000 to 4000 feet, Tolé (Cham- 
pion).—SovutH AMERIcA, Surinam 67, Cayenne 5, Brazil 45, 
This species seems to be very scarce in Central America, as there are only seven 
specimens in our collection from six localities. St&l considers the U. spinosa of Fair- 
maire to be a different insect to the U. spinosa of Fabricius, and names the former 
U. curvispina ; I have only seen one specimen, in the Belgian Museum collection, and 
it appears to be nothing more than a form of U. spinosa, Fabr. The older writers 
speak of the insect as ‘‘sex rubro-lineata” or “avec six lignes rayonnantes,” and 
of U. ataliba as “ quadrilineata.” It must be remembered that these lines are 
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