228 
Psyche 
[October-December 
segments covered dorsally by a somewhat chitinous plate, tip 
and sides sparsely clothed with short hairs. Legs chunky. 
Sheath of rostrum extending to between first and second pairs 
of legs. 
Fifth Nymphal Stage. Length about 2.5 mm. Width of head 
across eyes, 0.6 mm. Color pale or dirty yellowish tinged with 
brown. Tips of antennae, tips of legs and edges of wing pads 
somewhat brownish. Ventral surface pale. Head and thorax 
subequal in width. Eyes, lateral, prominent, red. Head and almost 
all of dorsal surface of first thoracic segment except for a broad, 
median line on head and thorax covered by a light brownish 
chitinous area. Prothorax two-thirds as long as mesothorax. 
Metathorax slightly less than one-half as long as prothorax. 
Wing pads of mesothorax extending to beginning of first ab- 
dominal segment. Wing pads of metathorax extending almost 
to end of second abdominal segment. Dorsal surface of meso- 
thorax bearing a small, brown area and a dot on the anterior 
margin each side of a median line; on posterior margin a large 
brown area and three closely placed darker spots or dots on 
each side of median line. Metathorax bears dorsal areas and 
spots similar to those of mesothorax. Anterior edge of first 
abdominal segment bears areas and spots similar to those on 
anterior edge of metathorax. Abdomen subcircular, strongly 
convex. First segment narrowed, gradually widening to fourth 
and then narrowing to broadly rounded extremity. First six 
abdominal segments distinct, remainder fused and covered with 
a darker, dorsal, chitinous plate; a tubercular, process on each 
side of anal opening. Sides and tip of abdomen bearing short 
hairs Dorsal surface of abdomen has a velvety appearance. 
Antennse, head, wing pads and legs bearing several short hairs. 
Adult. This was described by Fitch in 1857 (Ann. Rept. N. Y . 
State Agric. Soc. XVII, p. 740) from specimens collected during 
the middle of May in extensive tracts of sweet flag ( Acorus 
Calamus ) growing on the banks of the Raritan River two miles 
below New Brunswick, N. J. His description follows. 
“Spotted winged Diraphia, Diraphia maculipennis N. sp. 
