Genus Janthinosoma. 129 
metallic reflections, base of femora honey yellow, in the hind 
legs the base of the third tarsal joint has a broad yellow band. 
2. Head brown, with flat, spindle-shaped yellow scales and 
dense orange upright forked scales in the middle, small flat dark 
scales laterally ; palpi, antennae and proboscis deep brown with 
metallic violet reflections ; palpi densely scaled ; clypeus black, 
shiny. 
Thorax black, shiny, with curved bronzy brown scales in the 
middle, a broad lateral band of spindle-shaped orange yellow 
scales ; pleurae black, with dense creamy scales ; scutellum black, 
with broad golden spindle-shaped scales and with eight black 
border-bristles ; metanotum black. Abdomen violet, each 

Fig. 71. 
Janthinosoma Arribalzagae. Giles. 
a, Abdominal ornamentation ; b, Hind leg of @. 
segment with lateral apical golden spots and with the basal 
segment yellow scaled ; venter with narrow apical yellow bands 
to the violet segments ; border-bristles numerous, black, not 
arising from the edge of the segments. Legs deep brown, with 
violet reflections, base and most of the venter of the femora 
golden yellow, knee spot white, in the hind legs the third 
tarsal has a broad basal yellow band; ungues all equal and 
uniserrated, 
Wings with the first sub-marginal cell a little longer and 
much narrower than the second posterior cell, its base just a 
little nearer to the base of the wing, its stem a little more than 
half the length of the cell; stem of the second posterior as long 
VOL. Il. K 
