DICHROMA EQUF.STRALIS. 
225 
are rather short, the tibia being considerably shorter 
than either the femur or tarsus ; the middle tibia 
are longer and terminated by two spurs, whilst the 
hind pair, of equal length, have a pair of spurs at 
the middle and another at the tip. The mediastinal 
vein of the fore wings is rather short: the post- 
costal one emits two branches before the junction 
with the ordinary transverse vein ; the first of these 
branches is straight and extends to the costa of the 
fore wings, but the second coalesces with the post- 
costal vein at a short distance beyond the junction 
of the postcostal and transverse veins, but almost 
immediately branches off again in a straight line 
extending to the costa ; a third branch is also 
emitted, which is forked before it reaches the costa, 
the lower branch of the fork extending to the tip 
of the wing. The median vein extends in three 
branches to the extremity of the wing, the ordinary 
transverse vein arising at the base of the last three 
branches. This transverse vein emits two straight 
veins, which extend to the extremity of the wings. 
The bridle consists of several very fine set®. 
We are so completely ignorant of the character 
of the smaller exotic Lepidoptera, that we shall only 
venture to observe, respecting the relations of this 
group of moths, that they seem to be intermediate 
between the Lithosiid® and aberrant Tineidas. 
The head, thorax, and fore wings of D. eques- 
tralis are of a beautiful pea-green, the latter being 
ornamented with numerous spots and lines of sil- 
very white, more or less confluent ; three of these 
p 
