Genus Janthinosoma . 
255 
2. Janthinosoma musica. Say. 
C. Mexicanus. Bellardi (?). 
C. musicus. Say. 
(Jour. Acad. Nat. Sci. Phil. vi. p. 1-19.) 
(Fig. 44, PI. XT.) 
Thorax metallic brown with scattered bronze and yellow 
spindle-shaped scales, rather more yellowish at the sides. Abdo¬ 
men purplish with lateral patches of golden-yellow scales, venter 
partly golden-yellow scaled. Legs metallic purple and blue, the 
last two tarsi and the apex of the second tarsus white ; hind legs 
densely scaly. Head bright honey-yellow with yellow scales. 
9 . Head honey-yellow, covered with orange-brown scales, or, 
as Say describes them, “ honey-coloured” scales, and a few yellow 
hairs projecting in front; eyes black with coppery reflections ; 
antennae dark brown, basal joint 
and base of the second joint 
pale reddish-brown, verticillate 
hairs brown; palpi dark brown in 
some lights, brilliant violet or 
purple in others, densely scaled ; 
proboscis dark brown, covered 
with scales and with metallic 
purple reflections. 
Thorax deep metallic brown 
with purplish reflections, with 
scattered yellow and bronze, 
flat, spindle-shaped scales, more 
densely yellow scaled at the 
sides, and with dark, almost 
black, bristles; scutellum ochra- 
ceous-brown, dark brown in the 
middle and sides, with a few 
scales (evidently a little denuded); metanotum shiny chestnut- 
brown ; pleuiae brown with a large patch of creamy-white scales. 
Abdomen deep purplish-brown above when viewed pointing 
from the light, when pointing to the light very brilliant metallic 
violet and purple, the denuded surface appearing steel-black, 
the first segment and part of the second are testaceous ; laterally 
are patches of yellowish scales, especially on the last four seg¬ 
ments ; each segment has also a row of yellowish-brown hairs on 
J. musica , Say. 
a, Female palpus, and a', enlarged scale ; 
b and c, male fore and hind ungues ; 
d, male palpi and proboscis. 
scattered yellow and dark flat 
