Genus Megarhinus, 
243 
14. Megarhinus amboinensis. Doleschall. 
(Nat. Tijdschr. v. Ned. Indie, xiv. p. 381.) 
“ 6 . Palpi, proboscis and abdomen blue, thorax metallic golden-green, 
wings tinged with yellow; legs dark blue, with a ring of white on the 
first joint of the hind tarsi. Length, 4£ lines. 
Head dark blackish-green; eyes and antennae black, the latter densely 
plumed; palpi and the proboscis steel-blue; palpi white between the 
second and third joints, slightly pubescent. Thorax dark green, with 
shiny golden scales, with long stiff hairs over the roots of the wings; 
abdomen flat, steel-blue, with long dense dark blue hairs on each side of 
the last three segments. Wings longer than the abdomen, yellowish, with 
tawny veins ; legs long and thin, deep blue, not hairy, the first joint of 
hind tarsus white. 
Amboina, found in the bush during the dry season, not uncommon.” 
15. Megarhinus trichopygus. Wiedemann. 
Calex trichopygus. Wiedemann. 
(Auss. Zweifliig. Ins. p. 4.) 
“ Thorax black, with greenish-gold scales; abdomen fuscous, with 
steel-blue scales, with the antepenultimate segment and those behind 
broader and hairy. Length, 3^ to 4^ lines.” 
“ Antennae brown ; palpi yellowish, opalescent-blue, with brassy scales 
below; last joint deep steel-blue; proboscis blackish-blue, tapering very 
much ; head and thorax black, with greenish-gold and blue scales; pleurae 
and coxae brown, with silvery scales. Abdomen shiny brown, with pale 
steel-blue scales; venter with silvery and blue scales; antepenultimate 
segment broadened, fringed on each side; penultimate and last segments 
smaller, fringed with brownish-black hairs, which show violet-blue in 
certain lights; legs yellowish-brown, with steel-blue scales, silvery below. 
(Mid legs wanting.)”—Brazil. 
16. Megarhinus Christophii. Portschinsky. 
(Horae Soc. Ent. Rossicae, p. 122 (1883).) 
“ Proboscis long and black, distinctly shorter than the body; antennae 
fuscous, barely half the length of the proboscis, with scanty black hairs; 
their basal joints and border of the eyes with metallic blue scales; first to 
sixth abdominal segments ornamented with a shiny silvery transverse 
stripe; sixth provided with a tuft of black hairs, and the last two with 
long, fulvous marginal hairs on either side. ' Legs fuscous, bases of 
femora pale; first and second joints of the anterior tarsi, base of the first 
