403 
of the Amazon Valley. 
Genus Dihammqphora. 
Chevrolat, in Thoms. Arc. Nat. p. 50; Lacord. Gen. ix. 
108. 
1. Dihammophora nitidicolUsj n. sp. 
Nigra, opaca ; thorace Isete rufo, sericeo-nitente, elon- 
gate, inasquali, medio dorsi convexo, postice bitubercu- 
lato ; elytris ante apicem dilatato-rotundatis, supra grosse 
lineatim punctatis, bicostatis; antennis corpore multo 
brevioribus, articulis 3-11 subaequalibus, leviter serratis; 
abdomine argenteo-tomentoso. 
Long. 2f lin. 
Hah. — -St. Paulo, Upper Amazons, 
2. Dihammophora jousilla, n. sp. 
Angustissima, linearis, nigro-picea, opaca; thorace 
angusto, cylindrico, baud tuberculato, rufo-opaco ; elytris 
ante apicem gradatim rotundatis, grosse lineatim punc- 
tatis, bicostatis ; antennis corpore multo brevioribus, 
decem-articulatis, articulo lOmo longiori, crassiori; ab- 
domine argenteo-sericeo. 
Long. 24 lin. 
Hah.—YiYLa, Nova ; on flowers. 
Allied to D. perforata j King, from which it difiers, inter 
alia, in the head being entirely black. 
Sub-fam. RnoPALOPHOEiNiB. 
Genus Rhopalophoea. 
Serville, Ann. Soc. Ent. Fr. 1834, p. 100 ; Lacord. Gen. 
ix. 110. 
1. Bhopalophora atramentaria. 
Listroptera atramentaria, White, Cat. Longic. Brit. Mus. 
p. 208. 
Bhopalophora vidua, Chevrolat, in Thoms. Arc. Nat. p. 59. 
Elongata, plana, nigro-velutina, antennis pedibusque 
nitidis; elytris utrinque vitta latissima suturali griseo- 
tomentosa; corpore subtus argenteo-tomentoso. 
Long. 6-7 lin. <? ? . 
Altar do Chao, River Tapajos. Abundant. 
