JAMES A. G. REHN 
109 
at the fork of the ulnar vein tliere is one large, and on the main branch of the 
same vein and on each ramus of the median vein, disposed with the curve of 
the sutural margin, three small blotches of the same color. Wings colorless 
hyaline with the veins pale yellowish. 
Length of body, 22.7 mm.; length of pronotum, 6.2; greatest width (caudal) 
of pronotal disk, 4.6; length of tegmen, 30; greatest width of tegmen, 11; 
length of caudal femur, 15.5. 
The type is the only specimen of the species we have seen. 
Pycnopalpa bicordata (Serville) 
1825. Locusta bicordata Serville, Encycl. Method., Ins., x, p. 343. [Brazil.] 
Independencia, Parahyba. (Mann and Heath.) One male. 
This specimen has the distal portion of the costal margin of the 
tegmina more regularly arcuate and less truncate than in Rio de 
Janeiro material. 
Microcentrum lanceolatum (Burmeister) 
1838. Ph[ylloptera] lanceolata Burmeister, Handb. der Entom., ii, abth, ii, 
pt. i, p. 692. [Brazil.] 
Ceara iMirim, Rio Grande do Norte. (Mann and Heath.) 
One female. 
This species has been recorded from localities extending from 
Guatemala and Surinam to southern Brazil. 
Microcentrum marginatum Brunner^ 
1878. M[icrocentrum] marginatum Brunner, Monogr. der Phaneropt., pp. 
334, 336. [Pernambuco, Brazil.] 
Ceara Mirim, Rio Grande do Norte. (W. i\I. iMann.) One 
female. 
Independencia, Parahyba. (Mann and Heath.) One male. 
The stridulating vein of the stridulating field of the male of this 
species is very heavy, long, strongly arcuate and with its parallel- 
ing vein but little inferior in development. 
Microcentrum nigrolineatum (Bruner) 
1915. Orophus nigrolineaius Bruner, Ann. Carneg. Mus., ix, p. 333. [Prov- 
ince of Sara, Bolivia.] 
Pard, Para. (C. F. Baker.) One male. 
Chanchomayo, Peru. Two females. 
“ The specimen from Misiones, Argentina recently recorded by us as .1/. 
angusium (Proc. -Vcad. Xat. Sci. Phila., 1915, p. 288), we find, on re-exami- 
nation and comparison with the present material, to represent J/. marginatum. 
TRANS. AM. ENT. SOC., XLIII. 
