1863.] 
237 
transverse line drawn behind the antennse pale-reddish-brown immaculate, 
except the nasus which is brassy-black all but its anterior edge, the rhinarium 
which is occasionally obfuscated, and the labrum which generally has a small 
basal triangular black spot : 2nd joint of antennae with an interior black spot. 
3rd joint fuscous, seta black; lower parts of head very pale yellowish brown. 
Frothorax with its anterior lobe and a small spot behind that lobe, its sides and 
its posterior lobe, and on its disk a lateral spot and sometimes a pair of abbre¬ 
viated approximated narrow dorsal vittee, all pale-reddish-brown ; the posterior 
lobe very narrow throughout and scarcely discernible and with a slight dorsal 
tubercle. Dorsum of thorax villose with a broad, lateral, pale-reddish-brown 
stripe, occupying i df its breadth and not quite attaining the humeral suture 
above; pleura obscure pale-reddish-brown, except a broad humeral stripe strad¬ 
dling the humeral suture above, a narrow line subobsolete below in the medial 
suture and a short line under the front wing, all brassy black, and except also 
the anterior half of the anterior pleural segment which is very pale yellowish 
brown : sternum whitish. Abdomen slender widening on joints 8—10 to nearly 
twice as wide, with the sides of all the joints pale-reddish-brown: joints 1—7 
with a basal })ale-reddish-brown annulus occasionally interrupted above, wider, 
paler and more conspicuous on 4—6 ; joint 9 entirely pale-reddish-brown j joint 
10 dorsally carinate and with a pair of small robust, conical tubercles on the mid¬ 
dle of its terminal edge j venter fuscous, often at base and tip pale-reddish-brown. 
All four abdominal appendages pale-reddish-brown, tipped with black and pilose 
under the lens : the superiors long and robust, the inferiors slender and scarcely 
half as long as the superiors. Viewed from above the superiors are at base more 
than A as wide as long, whence they taper slightly for f their length with one 
deep dorsal stria, and then taper suddenly to what would be an acute point but 
for a small robust acute tooth on their interior tip which points inwards. 
Viewed laterally, they are nearly ^ as wide as long at base, the upper edge 
straight, the lower edge diverging very slightly to their length, where there 
is a small robust blunt tooth or tubercle directed downwards, behind which 
tooth the lower edge slopes suddenly upwards, the tip of the appendages being 
obtuse and rounded. The inferior appendages taper slightly and are regularly 
curved inwards, the tip subtruncate. Legs pale-yellowish-brown, often whit¬ 
ish towards their tij^s, femora with a superior and anterior black vitta, the supe¬ 
rior vitta especially in the middle and hind legs being very often degraded into 
a row of black dots sometimes subobsolete in the hind legs; anterior and some¬ 
times the intermediate tibise with a slender basal anterior black vitta; tarsal 
incisures and tips of claws slenderly fuscous. Wings hyaline; veins black; 
pterostigma rhomboidal, pale-reddish-brown, marginally much paler or even 
subhyaline; 10—11 postcubitals % ^ . 
The 9 dilfers in the pale-reddish-brown parts being greenish blue in the recent, 
and obscure pale green in the dried specimen. The black line in the medial 
pleural suture is obsolete except next the wings, and the short black line under 
the fi’ont wing is absent. The abdomen is more robust and does not expand at 
tip; joint 9 has a large, equilaterally-triangular, brassy-black, dorsal spot ex¬ 
tending from base to tip, and joint 10 has merely a narrow brassy-black dorsal 
