E. B. WILLIAMSON" 
217 
with the sul)ai)ical blue spot on eight, but the sides l)elow of nine are black to 
the extreme l)order; the large quadrate spot and the subapical blue spot may be 
narrowly joined at the lower posterior angle of the quadrate spot ; ten entirely 
black, with a small blue spot near the middle — the homologue of the subapical 
blue spot on the i>receding segments. \'entral suture black. Appendages 
black. Legs jiale tlull yellow; femora dark externally, especially on the pos- 
terior face and apically, where the inner side is black; tibiae dark on the 
inner side and, in the front legs, on the anterior external face; tooth on tarsal 
claw about as in myrlhca. 
Wings clear, in only one specimen slightly tinged; stigma brown to almost 
black, covering one cell or very slightly less, its costal length from slightly less 
than to slightly more than twice its width. 
9 . — Genae cream or pale gray. Labrum yellow or light brown, paler below, 
a median basal black spot. Rhinarium, nasus and frons in front light brown; 
nasus patterned as in the male. Frons above and vertex brown, variably 
patterned with black; in the paler specimen the black area about the ocelli 
(see description of male) is reduced to a small spot just behind the median 
ocellus, and a spot just inside and posterior to each lateral ocellus; of the trident 
in front of the median ocellus only the three apices remain; the lateral bar on 
either side of the median ocellus is entirely gone, though the second joint of the 
antenna remains black; the bar outward and forward from the lateral ocellus 
begins about one-third the distance from the ocellus to the eye, from which 
point it runs directly to the eye, the entire region in front of it and immediately 
posterior to it, pale; a black spot on either end of the occipital crest; and out- 
side and posterior to this is a black transverse bar as in the male, the adjoining 
region of the eyes narrowly black margined. In the darker specimen all the 
above spots and bars are present and larger, and in addition there is a dusky 
spot on either side of the median ocellus, and a large round spot near, but not 
touching, the eyes midway between the black bar from the lateral ocellus and 
the posterior transverse bar. Antenna with second joint black, white at apex; 
basal half of third joint white or pale; remainder black or dark brown. Rear 
of head black, pale above and the eyes broadly margined with pale. 
Prothorax brown; front lobe with a posterior black spot on either side; 
middle lobe with a median longitudinal black line and a dusk}" indefinite spot 
above on either side; hind lobe with a large round black spot on either side, 
lateral margins pale. Propleuron brown, upper half paler, bordered above 
and in front with dusky or black. 
Thoracic colors light brown and black. 
Abdomen above dull blue, pale and disappearing on segment seven, and 
apparently wanting on eight to ten; one with basal half black; two to eight 
with extremely narrow basal rings, sometimes evident only as a small med- 
ian spot; two to six with distinct, and seven to nine indistinct apical 
black rings; two to seven with a subapical black area on either siile, joined 
in the middorsal line on two and three, narrowly separated on four to six 
and a little more widely on seven, the subapical pale area enclosed between 
this dark area and the ajjical ring is the same color as the color anterior 
TRAXS. AM. EXT. SOC., XLIII. 
