788 N. C. AGR. EXP. STA. BUL. 239 
Specimens of Tettisama, new genus, have been examined from Colombia and 
British and Dutch Guiana to Bolivia, Paraguay, and Argentina. Tettisama is 
related to Erythrogonia Melichar, but specimens are longer (at least 10 mm vs. 
9.2 mm at most), and males have the distinctive pygofer lobe not found in 
Erythrogonia. 
The present interpretation of Tettigonia sexpustulata Stal rests on the original 
description and agrees with specimens so identified by Melichar. Types of this 
species were not found by the writer during studies in Europe. 
The identity of Tettisama quinquemaculata (Germar) as here determined rests 
on the original description. I have examined the lectotype of Tettigonia sub- 
signata Walker. 
There appear to be two doubtfully distinct species of Tettisama, each with a 
great deal of color variation, and possibly a third undescribed species from 
Bolivia, of which only three females have been seen. The male genitalia of the 
known species do not yield specific characters, and the writer has been unable 
to find characters other than color to separate them. Medler (1963a:21) 
correctly excluded the nominal species from Erythrogonia. 
SPECIES OF TETTISAMA 
(Types of nominal species marked with an asterisk have not been studied) 
bisellata (Signoret), 1862a:586 ( Tettigonia). Colombia, Br. and Fr. Guiana, NE. and SW. 
Brazil, Ecuador to Bolivia. New combination. 
dilectula (Jacobi), 1905c:174 ( Tettigoniella). New synonymy. 
*quinquemaculata (Germar), 1821a:67 (Tettigonia). D. Guiana; N., E., and SE. Brazil, 
Paraguay, Argentina. New combination. 
mutabilis (Signoret), 1853c:683 ( Tettigonia). 
*sexpustulata (Stal), 1855b:192 ( Tettigonia). 
bifacies (Walker), 1858b:213 ( Tettigonia). 
*obscura (Stal), 1862b:496 ( Tettigonia quinquemaculata var.). 
subsignata (Walker), 1858a:96 ( Tettigonia). New synonymy. 
KEY TO SPECIES OF TETTISAMA 
Forewing without spots or with two spots of which anterior one is oval and 
does not attain commissural margin, neither two anterior spots nor two 
posterior spots of two forewings at rest appearing as a transcommissural 
band 2.0. 4 epee sa cake a etic eee quinquemaculata (Germar) (fig. 638) 
Forewing with two spots, the more anterior one quadrate and attaining 
commissural margin, both pairs of spots of two forewings in rest position 
appearing as transcommissural bands ........ bisellata (Signoret) (fig. 639) 
105. AGUATALA, NEw GENUS 
FIGURE 640 
Type-species: Aguatala compsa, new species. 
Length of male 8.4 mm (female unknown). 
Head moderately produced, with anterior margin broadly rounded in dorsal 
view, median length of crown more than six-tenths interocular width and 
