136 MISC. PUBLICATION 42 4, U. S. DEPT. OF AGRICULTURE 



others 10-12 fi long and 7-8 wide ; minute 8-shaped and disk pores fairly sparse ; 

 tubular ducts 24 /i long ; dorsal tubes present. 



Ventral surface: Antenna roughly dome-shaped, with 2 setae slightly longer 

 than diameter of antenna ; beak without setae ; spiracular bar fairly broad, 

 somewhat expanded at inner end ; normally with 6-10 quinquelocular pores ex- 

 tending from spiracle to body margin in a single or double row; 2 or 3 dark- 

 rimmed 8-shaped pores each side of beak, a few in lateral area of abdomen, 

 and others arranged in 2 or 3 transverse rows on abdomen; submarginal 8-shaped 

 pores in a single row terminating about halfway between genital opening and 

 the posterior marginal quinquelocular pores, usually 1 opposite each marginal 

 8-shaped pore when the latter are slightly more than a pore's length apart; 

 apparently at least 4 pairs of submarginal setae on abdomen, the posterior pair 

 nearly the length of an apical seta from bases of apical setae ; 1 pair of setae 

 posterior to genital opening, 1 pair anterior to it, and 1 pair anterior to those. 



Apex of abdomen : Setae, apical 44-50 /x long, interapical 6-7.2 /* long, inner 

 ventral 3.6 ix long, outer ventral 4-5 /* long; anal ring with 6 setae 20 /* long 

 and with an inner row of 6 and an outer row of 12 pores, tending toward division 

 on dorsal side ; ventral surface of apex rugose. 



Larva. — Broadly elliptical. 



Margin : With 28 8-shaped pores, the posterior, penultimate, fifth from posterior, 

 and anterior pairs very slightly larger than the others, axes of the posterior 6 

 pairs transverse, of the others longitudinal ; 3 pairs of setae anteriorly. 



Dorsal surface : 8 shaped pores in a submedian row of 2-5 on each half of 

 body, the total number ranging from 7-10, anterior pore largest and about one- 

 sixth smaller than marginal pores of same segment, the others, except the 

 second from anterior pore which is sometimes distinctly larger, one-half to 

 three-fourths size of marginal pores of same segments ; disk pores in lateral area 

 and a few in submarginal area. 



Ventral surface : Antennal setae, I, 1 ; IV, 1 ; V, 1 ; VI, 2 long, 2 stout, 3 fairly 

 stout, 1 slender ; antennal bases one-half length of antenna apart ; beak setae, 

 2 pairs apical, 1 pair median ; anterior spiracle with 1 trilocular pore, posterior 

 spiracle with 2 ; leg setae, coxa 4, femur 1 on inner margin near base and 1 each on 

 inner and outer margins near center, tarsus 2 on inner and 1 on outer margin ; 

 tibia two-thirds as long as tarsus ; 9 pairs of submarginal 8-shaped pores ; 6 pairs 

 of submarginal minute setae on abdomen. 2 pairs of submarginal larger setae 

 at anterior end ; 1 pair of setae between antennae and mouth parts. 



Apex of abdomen : Notch present ; setae, apical 28 fi long, interapical 5 /j. long, 

 inner ventral 2.7 (j. long, outer ventral 3 /n long ; anal ring with 6 setae 7.2 fx long, 

 divided on dorsal side. 



Data. — Redescribecl from unmounted material and the following 

 mounted specimens : Two females and 2 larvae on D emir o calamus sp., 

 Kwangtung, China. F. A. McClnre; 1 female and 2 larvae on 

 Arwndinaria glaucescens, Calcutta, India, R. A. Young, 1862, U. S. 

 N. H. ; 5 females and 2 larvae on Bamhusa tulda, India, May 1888, 

 U. S. N H. ; 3 females and 1 larva on Bamhusa sp., Hanoi, Indo-China, 

 A. S Hitchcock, October 5, 1921, U. S. N. H. ; 1 female and 3 larvae on 

 Bamhusa sp., Koo Long Ue, Sz Ming district, Fukien, China, F. A. 

 McClure, July 26, 1930; 7 females and 5 larvae on Bamhusa sp., 

 Lingnan University, P'oon Ue district, Kwangtung, China, F. A. 

 McClure, September 9 and 17 and October 13, 1931; 1 female on 

 Bamhusa sp., Sing Kok T'sai, Yeung Kong district, Kwangtung, 

 China, F. A. McClure, December 1, 1931; 2 females and 2 larvae on 

 Bamhusa sp., Chan T'au Ling, Mau Ming district, Kwangtung, China, 

 F. A. McClure, December 27, 1931 ; 6 females and 13 larvae on Bamhusa 

 stenostachya, Taihoku, Taiwan (Formosa), R. Takahashi collector, 

 from E. E. Green, received in 1934, probably type. 



This species resembles most closely minusculum and parvum, and is 

 rather similar to hrunetae and circulate. 



