1949] Cheng — Mecoptera 151 
and choui bears a large internal skeleton with a well-de- 
veloped axis. 
Neopanorpa choui n. sp. 
Figures 22, 23, 43, 44, 45, 62 
Body light brown, the middle part of the thoracic no- 
tum sooty brown ; vertex entirely black ; rostrum yellow- 
ish brown ; median process of third abdominal tergite of 
male extraordinarily long (measuring up to 4.2 mm.) ap- 
parently divided into two portions and bearing a series of 
dense, short stiff hairs on its ventral surface ; the fourth 
tergite extremely long, almost covering the following 
abdominal segments, somewhat elevated, and furnished 
with many short stiff hairs on its surface. Fore wing: 
length, 3.5 mm. ; width, 3 mm. ; membrane light yellowish 
brown, markings light brown, very indistinct; oterostig- 
mal band incomplete, usually represented only by the 
faint basal branch and apical branch; basal band repre- 
sented only by two small spots on the hind margin ; apical 
band large; pterostigma brown, very prominent. Hind 
wing : length, 12 mm. ; width, 3 mm. ; similar to fore wing, 
except that the pterostigmal band and the basal are en- 
tirely lacking. <$ genitalia: genital bulb slender; coxo- 
podite long, with truncated apex ; harpagones slender, the 
outer margin concave at the middle, inner margin with a 
triangular angle and a large basal lobe; hypandrium 
short and broad; hypovalvae broad and less sclerotized, 
with an abruptly narrow apex, extending beyond the base 
of the harpagones; parameres modified into a pair of 
sclerotized rods, greatly swollen distally and with an in- 
cised apex and fused with the basal part of aedeagus 
basally; preepiproct narrow distally with truncated and 
slightly concave apex. HSdeagus rather small, the two 
apical processes united together ; lateral process extend- 
ing upward with tooth-like apex. 2 genitalia : subgenital 
plate broad basally, narrow towards apex and with a nar- 
row U-shaped incision distally; internal skeleton large, 
the plate little sclerotized, very small, its posterior arms 
