PRISCILLA.—COLOBOTHEA. 187 
PRISCILLA. 
Priscilla, Thomson, Syst. Ceramb. p. 30. 
The following is the only known species :— 
1. Priscilla hypsiomoides., (Tab. XIV. fig. 10.) 
Priscilla hypsiomoides, Thomson, Syst. Ceramb. p. 31 (1864)’. 
Colobothea dioptica, Bates, Ann. & Mag. Nat. Hist. ser. 3, xv. p. 220° (1865) ; id. Trans. Ent. Soc. 
1872, p. 224°, 
Hab. Nicaragua, Chontales (Belt °)—Sourn America, Cayenne }, Amazons *. 
COLOBOTHEA. 
Colobothea, Serville, Encycl. Méth. x. p. 336 (1825) ; Ann. Soc. Ent. Fr. 1835, p. 69; Bates, Ann. 
& Mag. Nat. Hist. ser. 3, xv. p. 214. 
‘Seventy species of this highly characteristic Tropical-American form of Lamiid 
Longicorns have been described. They are far more numerous and varied in Equatorial 
South America than in the northern part of the Neotropical zone; and none appear to 
be found in the West-India Islands, or in the pampa region south of Brazil. The 
genus belongs to the Acanthocinini group in all essential points of structure, differing 
chiefly in its elongate and laterally-compressed shape of body, the tendency to this 
modification of form exhibited in many of the genera allied to Astynomus here 
_ reaching its acme. The high epipleure of the elytra are always limited above by a 
distinct elevated line or carina. The species are all of medium or large size, and prettily 
varied with tomentose spots or bands. 
1. Colobothea ramosa, (Tab. XIV. fig. 12.) 
Colobothea ramosa, Bates, Trans. Ent. Soc. 1872, p. 225. 
Hab. Nicaraeva, Chontales (Belt). 
In the description above cited the form of the terminal abdominal segment is 
erroneously described, owing to my having mistaken a bifid process forming part of the 
genital organs as the end of the dorsal plate. The parts are nearly hidden by hairs, 
rendering it difficult to ascertain the real shape. As several species, closely allied in 
the ashy-white macular tomentose patches of the elytra, are distinguishable chiefly by 
the form of this segment in the two sexes, I add here an amended description. 
3. Abdominis segmentum apicale elongatum, lamina dorsali convexa, apice paullo angustata et emarginata ; 
lamina ventrali quadrata, medio concava, apice late triangulariter emarginata, angulis elevatis productis 
sublobatis. 
9. Abdominis segmentum apicale subconicum, lamina dorsali plana, apice obtusa, medio sat profunde incisa, 
ventrali apice late emarginato-truncata angulis acutis. 
2b 2 
