184 t. R. M‘Lachlan on the 
fascia are always present, and sometimes united into a 
narrow basal fascia, oblique in a direction contrary to that 
of the broad fascia, and this latter is usually furcate ex- 
ternally on its lower portion, forming a narrow branch, 
enclosing a vitreous space, or this branch is reduced to a 
small marginal spot. In the ¢ the posterior margin of 
the 3rd dorsal segment of the abdomen is produced into a 
short broad median lobe (usually concealing a tubercle on 
the surface and the 4th segment), fringed on each side with 
pale hairs; 6th and 7th segments stout, cylindrical, equal 
in length, the 7th slightly less thick than the 6th; 8th 
slightly longer than the 7th, cylindrical, but thinner and 
gradually incrassate from the base to the obliquely truncate 
apex, the cheliferous terminal segment short, but its claws 
long, piceous or reddish, the appendages that lie on its 
upper surface short and small, not extending to the base 
of the claws.* 
Eixpanse 35—39 mm. 
Probably of general distribution in Japan. I have 
a @ from North China that appears to be the same 
species. 
P. macrogaster, M‘Lach. 
P. macrogaster, M‘Lach., Journ. Linn. Soc., Zool. ix. 
251s 
Dull black, the incisures of the abdominal segments, 
lateral membranous lines, and wing-shoulders, reddish. 
Legs yellowish or reddish. Wings broad, whitish, with 
black veins ; a broad blackish fascia beyond the middle, 
traversed longitudinally by a pale line between each 
of the veins, with a narrow external branch on the inner 
margin (or a short, narrow, disconnected line); apex 
broadly blackish, also with pale lines divided by the trans- 
verse veinlets, so that it appears fenestrate; two to four 
blackish basal spots before the fascia. In the ¢ the pos- 
terior margin of the 3rd dorsal segment is produced in the 
middle into a short broad lobe, and there is a tubercle on 
the surface of the 4th ; 6th and 7th, much as in P. japonica, 
but the posterior angles (especially of the 7th) are more 
produced, forming a triangular tooth; 8th much longer 
“ The descriptions in the Journ. Linn. Soc. were based upon the, as 
T now believe, erroneous assumption that the abdomen of Panorpa ( §) 
consisted of eight segments instead of nine. 
