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



spaced a pore's width apart ; quinquelocular pores in a single row from nearly 

 opposite antennae to about halfway between posterior spiracular pore bands 

 and apical setae, usually as numerous as 8-shaped pores near ends of row and 

 twice as numerous as 8-shaped pores elsewhere. 



Dorsal surface : Minute 8-shaped pores and disk pores sparse ; tubular ducts 

 about 34 n long; dorsal tubes present. 



Ventral surface: Antenna rough, irregularly elliptical, with 2 setae as long 

 as greater diameter of antenna and 1-3 much shorter ; beak without setae ; 

 spiracular bar fairly broad ; 17-32 quinquelocular pores extending from spiracle 

 to body margin in an irregularly double row ; 1 or 2 dark-rimmed 8-shaped pores 

 each side of beak, a few in submarginal area and in 2 transverse rows in genital 

 area; submarginal 8-shaped pores in a single row terminating opposite genital 

 opening, usually half as numerous as marginal 8-shaped pores ; 6 pairs of sub- 

 marginal setae on abdomen, the posterior pair slightly nearer to apical setae than 

 to the posterior pair of marginal 8-shaped pores ; 1 pair of setae posterior to 

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



Apex of abdomen : Notch present ; setae, apical 50-60 n long, interapical 8 fi 

 long, intermediate ventral 5.2 /n long, outer ventral 7.2 ^ long; anal ring with 

 6 setae, each 24 fi long, also with an inner row of 6 and an outer row of 12 pores. 



Larva. — Elongate elliptical. 



Margin : With 28 rather elongate 8-shaped pores which are smallest at the 

 posterior end of the row and gradually increase in size anteriorly, axes of the 

 posterior 6 pairs diagonal, 8 axes of other pores longitudinal; 3 pairs of setae 

 anteriorly. 



Dorsal surface : A submedian row of 6 or 7 8-shaped pores on each half of 

 body, the anterior pores slightly larger than the others and about as long as the 

 width of an anterior marginal pore ; disk pores in lateral area. 



Ventral surface : Antennal setae, I, 9 1 ; IV, 1 ; V, 1 ; VI, 2 long, 2 stout, 2 fairly 

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

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

 posterior spiracle with 1 trilocular and 1 quinquelocular 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 length of 

 tarsus; 9 pairs of submarginal 8-shaped pores; 6 pairs of minute submarginal 

 setae on the abdomen and 2 pairs of larger submarginal setae anteriorly ; 1 pair 

 of setae between antennae and mouth parts. 



Apex of abdomen : Notch present ; setae, apical 32 n long, interapical 7.2 fx 

 long, intermediate ventral (fairly near median line) 3.6 m long, outer ventral 

 4.6 fi long ; anal ring with 6 setae, each about 5.4 n long, also with 2 or 6 pores 

 in an outer row. 



Data. — Described from unmounted and mounted material as fol- 

 lows: On Bambusa vulgaris, Los Banos, Luzon, Philippine Islands, 



A. S. Hitchcock, June 10, 1921, U. S. N, H., 10 holotype and paratypes 

 (1 female and 1 larva mounted) ; on Gigantochloa apus, Buitenzorg, 

 Java, G. Haley, 1919, U. S. N. H., paratypes (2 females mounted) ; 

 on Bambusa sp., Tung Heung, Kwong Ning, Kwangtung, China, F. A. 

 McClure, April 25, 1925, paratypes (3 females and 45 larvae mounted) ; 

 on Dendrocalamus sp., Philippine Islands, F. A. McClure. September 

 1925, paratypes (1 female and 8 larvae, all available material, mounted) . 



This species resembles miliaris but is larger, and the marginal 

 8-shaped pores, which are longer in proportion to their width than 

 those of miliaris. terminate farther from the bases of the apical setae. 

 In the shape of the marginal 8-shaped pores, as well as in other charac- 

 ters, it resembles captiosum, but differs from that species in having 

 four, instead of three, pairs of setae on the apex of the abdomen. 



8 Axes of pores are in respect to body margin at point where pores are situated. 



9 Roman numerals refer to antennal segments. 



10 Many specimens described in this paper have been collected by the writer from plants 

 in herbaria. In the data given under the various species, specimens from this source are 

 indicated by the letters' U. S. N. H. if from the U. S. National Herbarium, and N. Y. 



B. G. if from the Herbarium of the N. Y. Botanic Garden. The name of the collector of 

 the plant material is given if known. Specimens removed by the writer from preserved 

 bamboo collected by F. A. McClure are indicated by his name. 



