68 PROCEEDINGS OF THE ACADEMY OF [Part I 



all but the basal fifth of the posterior metatarsus; wings subhyahne, 

 the wing-tip a little darker; cell Mi lacking; basal deflection of 

 7^4+ 6 distinct. 



Male. — Length 9.2 mm.; wing 8.3 mm. 



Rostrum obscure brownish yellow; palpi dark brown. Antennae 

 of the male rather short, if bent backward extending about to the 

 wing-root; scapal segments obscure yellow, the flagellum dark brown. 

 Head brown, more grayish adjoining the margin of the eyes. Meso- 

 notum reddish yellow without apparent darker stripes. Pleura 

 testaceous yellow. Halteres brown. Legs with the coxae and tro- 

 chanters testaceous yellow; remainder of the legs dark brown, the 

 femoral bases paler; terminal tarsal segments snowy -white, on the 

 fore legs including the apical fifth of the metatarsus; on the middle 

 legs, the white includes a little less than the apical half; on the 

 posterior legs, the white includes the apical four-fifths, the basal 

 fifth being darkened. Wings subhyaline, cell Sc faintly darker; 

 stigma very indistinct to practically lacking; apex of the wing be- 

 yond the level of r and the outer end of cell 1st Mo darkened. Vena- 

 tion: Sc long, Sci ending a little beyond the level of r-7n; Rs long, 

 arcuated at origin; i?2-l-3 about two-fifths of Rs, in ahgnment with 

 Ri; r on R2 about the length of r-m beyond the fork of R2+3, the 

 distal section of Ri being about twice r; basal deflection of Rt+i 

 longer than r; cell 1st M2 elongate-rectangular, about as long as 

 vein ilf 1+2 beyond it; cell Mi lacking; basal deflection of Cui a little 

 less than half its length beyond the fork of M; basal deflection of 

 Cui about equal to Cui. Abdomen dark brown; sternites obscure 

 yellow. Male hypopygium with the pleural appendages very long 

 and slender. 



Habitat. — Brazil. 



Holotype, cf , TefTe, January 28, 1920 (H. S. Parish). 

 Penthoytera hatesi is dedicated to the memory of the great natur- 

 alist, Henry W. Bates, who spent more than four years at Teffe' 



Cicnus ERIOCERA Macquart. 

 1838. Eriocera Macquart, Dipt. Exot., Tome 1, p. 74. 



Eriocera macrocera Alexander. 



1914. Eriocera macrocera Alexander, Psyche, vol. 21, p. 40. 



This interesting crane-fly is still known only from the unique 

 type, taken at Igarape Assii, Brazil, January 30, 1912 (H. S. Parish). 



Eriocera amazonicola Alexander. 



1920. Eriocera amazonicola Alexander, Can. Ent., vol. 52, p. 144. 



Manaos, Brazil, November 4, 1919 (H. S. Parish); Type. 

 Flores, Brazil, November 12, 1919 (H. S. Parish). 



