Famitry—CHALCIDIDA. Sus-FAammny—PERILAMPIDES. 141 
Specres 1—POLYCHROMA HISTRIONICA. 
Puate XXVI, Fic. 6. 
Punctata, viridis, purpureo cupreoque variegata: antennis nigricantibus; femoribus anticis basi cexruleis, 
apice, tibiis anticis, pedibus totis intermediis, tibiisque posticis fulvis; tarsis fuscis articulo basali albido ; 
femoribus posticis cwruleis, subtus spinis 1] armatis ; alis hyalinis parum fuscescentibus, apicibus iridescentibus. 
Long. corp. lin, 4; expans. alar. antic. lin. 7}. 
Habitat; Brazil? In Mus. W. W. Saunders. 
The head and collar of this very beautiful insect are green, finely punctured; the mesonotum is green, with 
a large coppery-purple spot in front, and a larger one between the parapsides, the sides of which are tinged with 
the same coppery-purple, which is also the colour of the large scutellum, which is marked with two oval green 
spots. The abdomen is chalybeous, very glossy, and varied with green and coppery-red and orange, of which 
colours are two large spots on the fifth and sixth segments of the abdomen; the sixth segment has a large 
spiracle near each of the anterior lateral angles. The antenne (fig. 6a) have the basal joint long, the second 
moderately long and slender, the third and following gradually becoming shorter and somewhat broader, the 
last (eleventh joint) being the shortest and truncate at the tip, the apex being furnished with a small spur or 
spine on its under side. The hind femora are large and clavate, armed on the under side with eleven teeth, 
of which the middle ones are the largest. The curved tibie are received into a groove on the under side of the 
thighs, the inner edge of which groove is furnished with a row of eight small tubercles (fig. 6 4). 
Sprcires 2—POLYCHROMA REGALIS. 
Prate XXVI, Fic. 7. 
Viridis, punctata, purpureo rufo-cupreoque variegata: scutello magno rufo-purpureo ; antennis nigris, 
articulis duobus basalibus rufis; femoribus purpureo-piceis ; tibiis fuscis, basi et apice posticarum tarsisque 
albidis; abdominis segmentis primo, quinto et sexto, utrinque macula cupreo viridique tincta ornatis; alis 
fuscescenti-hyalinis apice iridescentibus ; femoribus posticis subtus denticulis circiter 26 armatis. 
Long. corp. lin. 33; expans. alar. antic. lin. 6. 
Var. minor, paullo obscurior, femoribus posticis 24-25-denticulatis. 
Habitat ; Amazonia (D. Bates). In Mus. Hopeiano Oxoniz. 
This lovely insect differs from the preceding in the structure of the hind thighs, which are armed with a 
row of minute teeth, twenty-six in number, on each side of the grooye, for the reception of the hind tibiz (fig. 
7a). The antenne are destitute of the minute annular joints succeeding the second joint found in so many 
species of the family : they are distinctly 11-jointed, the eighth being the thickest and the eleventh the smallest, 
with a minute curved spur at its apex. The front of the mesonotum, the fore margins of the parapsides, and 
the large seutellum, with its lateral lobes, are rich coppery-purple. 
Species 83—POLYCHROMA 16-DENTATA. 
Capite et thorace sneis obscuris, purpureo parum tinctis, punctatissimis; abdomine chalybo, nitidissimo, 
segmentis intermediis purpurascentibus basi transverse striolatis, sexto utrinque puncto impresso ; antennis nigris, 
11-articulatis, articulis quarto, quinto et sexto fulvis; pedibus nigro-wneis; tarsis luteis apice fuscis, femoribus 
posticis incrassatis, subtus 16-denticulatis ; alis hyalinis, anticis nubila magna brunnea pone medium posita. 
Long. corp. lin. 4; expans. alar. antic. lin. 7. 
Habitat; Brazil, Para (Bates). In Mus. W. W. Saunders. 
