296 INSECTA SAUNDDRSIANA. 
Tacuina opcontca, Mas. 
Nigra, canescens ; caput album ; thorax nigro quadrivittatus ; alee sub- 
cinerea. 
Black: head with a white covering; frontalia deep black, slightly 
widening towards the feelers ; facialia without bristles except at the base ; 
epistoma not prominent: palpi tawny : feelers black; third joint linear, 
very slightly rounded at the tip, not reaching the epistoma, full thrice the 
length of the second; sixth slender, nearly twice the length of the third, 
rather stout towards the base: chest and abdomen with a hoary covering : 
chest with four indistinct black stripes : abdomen obconical, very little 
longer than the chest: wings very slightly gray ; veins black, pitchy at the 
base; prebrachial yein forming an obtuse angle at its flexure, very slightly 
inclined inward from thence to its tip ; lower cross-vein with the two curves 
which are distinct: alulw white. Length of the body 4 lines; of the 
wings 8 lines. 
United States. 
TacHINA CHRYSOTELUS, Mas. 
Nigra, canescens ; caput auratum ; thorax nigro quadrivittatus ; abdomen 
albo-micans, apice auratum ; ale subcinerce. 
Black, with a hoary tinge : head bright gold-colour, thickly clothed be- 
hind and beneath with white hairs; frontalia black, slightly widening at 
each end; face white; facialia beset with black bristles along the whole 
length; epistoma not prominent: eyes clothed with pale hairs: mouth 
red; palpi black: feelers black; third joint linear, almost reaching the 
epistoma, about thrice the length of the second joint: chest with four 
black stripes : abdomen obconical, not longer than the chest, with white re- 
jflections on each side; tip gold-colour: legs black: wings slightly gray ; 
veins black ; prebrachial vein forming an obtuse angle at its flexure, from 
whence it is hardly curved inward; lower cross-vein with two very slight 
curves, the lower inward one more than thrice the length of the upper out- 
ward one: alule white. Length of the body 4% lines; of the wings 9 
lines. 
Brazil. 
. 4 = wey 
