MEMBR , WIDsE. 
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UMBONIA PERACEA. 
Perhaps is the of U. orozimbo. Physoplia percicea, Griffini, p. 3. Bull, (lei Mus. cl. Zool. ed. 
Anat. de Torino (1895). 
Probably this insect is one of the male forms of U. orozimbo. 
UMBONIA CAMERAN1. 
Griffini, l.c. p. 3 (1895). 
It may be noted that Fowler considers U. funesta and U. multiformis (Walker) to 
be the same as U. reclinata ; that JJ.reducta (Walker) is U. p/jramidacis ol Fairmaire, 
and that U. pic fa and U. decorat a are varieties of U. orozimbo. 
Genus: TRIQUETRA, Fairmaire. 
Ann. Soc. Ent. France, p. 279. Fowler, B.C.A. p. 32. 
The species of this genus are somewhat important. They mostly inhabit Bogota, 
Venezuela, and Brazil. They are often large insects, showing a tectiform pronotum, 
furnished with a large dorsal horn of more or less apical acuteness. The supra- 
humeral processes are more developed than in Umbonia, and the tegmina have at 
least four apical areas. 
Like Umbonia, they crowd round the stems of the plants they affect, the colour 
of which they simulate, and doubtless from their thorny aspects they can protect 
themselves from the rough treatment of foes. Living forms are brighter and greener 
than those found in our museums, but for the present their colours must be imitated 
from the dry materials at hand until the held naturalist will better instruct us. 
The aspect or facies of the species differ, and Fairmaire’s group may be broken 
into what may be called sub-genera, such as Stal has done. 
Triquetra //rosso, T. virescens, and T. virgata may be regarded as typical species. 
T. turrifa, T. obscura, and T. veruta may be partially separated. T. nigrocarinata, 
T. bos, and T. obiusa are all more or less tent-like on the dorsum, and may be 
relegated to the genus Microschema of Stab 
TRIQUETRA GROSSA, Fairm. p. 280, l.c. 
(Plate XVIII. figs. 1, 2, 2a.) 
Walk. l.c. p. 522. 
Large ; bright yellow, punctured with fulvous ; pronotum with a strong thorn¬ 
like horn between the two sharp suprahumeral processes, which are perpendicularly 
