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



Adult female. — In shape similar to test, 0.4-0.7 mm. in diameter, or 0.6-0.75 

 mm. long, 0.5 wide. 



Margin : 8-shaped pores in a single row terminating around six times the 

 length of an apical seta from bases of setae (usually only 2 or 3 posterior to 

 posterior spiracular pore bands), 6-7.2 (i long and 3.6 wide, the intervals between 

 them one to five times (normally apparently around twice) the length of a pore, 

 sometimes absent along anterior margin ; quinquelocular pores in a single row 

 terminating at the posterior pair of 8-shaped pores or slightly beyond, normally 

 at least as numerous as 8-shaped pores. 



Dorsal surface: 8-shaped pores 8-17 in number (usually at least 12), posterior 

 pore 9 /A long and 7.2 wide, in submarginal area near posterior end, others 

 placed at fairly regular intervals in submarginal area, and usually 2 in sub- 

 median or lateral area near beak, the majority 9 ix long and 7.2 wide, but some- 

 times 1 or 2 slightly smaller ; minute 8-shaped pores not observed ; disk pores 

 fairly sparse; tubular ducts 27 fi long; dorsal tubes present. 



Ventral surface : Antenna circular, flat, sometimes slightly sunken in derm, 

 with 2 setae longer than diameter of antenna ; beak without setae ; spiracular 

 bar rather slender ; 8-14 quinquelocular pores extending from spiracle to body 

 margin in a single row, except near margin, where it is 3 or 4 pores wide ; 2 or 

 3 dark-rimmed 8-shaped pores each side of beak, a very few on anterior end, 

 a few in lateral area of abdomen, and in 1 or 2 transverse rows in genital area ; 

 submarginal 8-shaped pores in a single row terminating around length of apical 

 seta from bases of setae, 1 opposite each marginal 8-shaped pore when the latter 

 are twice a pore's length apart, and at the same intervals where 8-shaped 

 pores are absent ; apparently at least 4 pairs of submarginal setae near posterior 

 end of abdomen, the posterior pair around length of apical seta from bases of 

 apical setae; 1 pair of setae posterior to genital opening (so near posterior 

 end that in slightly folded specimens they almost appear to belong with those 

 of apex of abdomen), 1 pair anterior to opening, and 1 pair anterior to these. 



Apex of abdomen : Notch present ; setae, apical 52-56 /j. long, interapical 5.4 /* 

 long, inner and outer ventral about 3.6 fi long ; anal ring with 2 setae 24 fi long, 

 .and four 26-30 fi long, and with an inner row of 6 and an outer row of 12 pores ; 

 ventral surface of apex sometimes slightly rugose. 



Larva. — Practically elliptical. 



Margin : With 28 8-shaped pores, the anterior pair slightly larger than any 

 others, axes of the posterior 6 pairs transverse or diagonal, of the others 

 longitudinal ; 3 pairs of setae anteriorly. 



Dorsal surface : Two submedian 8-shaped pores on each half of body, anterior 

 pore slightly smaller than posterior, both slightly wider than marginal pores of 

 same segments ; disk pores in submarginal and lateral areas. 



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

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

 setae, 2 pairs apical, 1 pair median ; spiracle with 1 trilocular pore ; 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 one-half as long 

 as tarsus; 9 pairs of submarginal 8-shaped pores; apparently 6 pairs of sub- 

 marginal minute setae on abdomen, 3 pairs of submarginal larger setae at 

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



Apex of abdomen: Notch present; setae, apical 33 fi long, interapical 7.2 p 

 long, inner ventral 5.4 n long, outer ventral 3.6 \l long; anal ring with 6 setae 

 around 5.4 /x long. 



Data. — Described from unmounted material, 28 mounted females, 

 and 47 mounted larvae removed from host material collected by F. A. 

 McClure in Kwangtung, China, unless otherwise indicated. The fol- 

 lowing lots are represented: Bambusa spinosa, Hue, Annam, Indo- 

 China, A. S. Hitchcock, September 26, 1921, U. S. N. H.; Bambusa 

 arundinacea, Hainan Island, China, A. S. Hitchcock, October 10-15, 

 1921, U. S. N. H. ; Bambusa sp., Lung T'au Shan, K'uk Kong district, 

 January 7, 1925; Bambusa sp., Leng T'seng village, April 15, 1925; 

 Bambusa sp., Ahwat village near Chun Wong Shan, Ts'ing Uen dis- 

 trict, April 20, 1925; Bambusa sp., near Wan T'ong, Ts'ing Uen 

 district, April 21, 1925; Bambusa sp. ?, Kwong Ning, April 24, 1925; 

 Bambusa sp., near Tung Heung, Kwong Ning district, April 25, 1925 ; 



