56 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. GO. 



This species is represented in the Maskell collection by five slides, 

 one of " adult female, 1892," one of " 2nd stage female, 1892," one of 

 " antennae of female, 1892," and two of " larvae of female, 1892." 

 There is also a small quantity of unmounted material bearing No. 221. 



Fio. 18. — Chaetococcus bambusae (Maskell). A. lauva, outline, Xiis; B. auult 



FBMALE, POSTERIOR SPIRACLE (ABOVE) AND PORE PLATE (BELOW), X 115 ; C. AD0LT FEMALE, 

 DETAILS OF PORES IN PLATE, X 1500 ; D. ADULT FEMALE, OUTLINE OF BODY, SHOWING 

 SHAPE, X12; E. ADULT FEMALE, ANTENNA, X 440 ; F. ADULT FEMALE, MULTILOCULAR DI^K 

 PORB, Xl500; G. SAME, TRIANGULAR PORE, X 1500 ; H. SAME, APEX OF ABDOMEN, X 440 ; 

 1. LAUVA, LEG, X 220 ; J. LARVA, ANTENNA, X 220 ; K. DERM SETA OF ADULT FEMALE, X 1500. 



Adult female. — Occurring well down in the leaf sheaths in the 

 midst of dense white waxy secretion, this surrounding but not cover- 

 ing the strongly flattened insect ; bodj^ oval, pointed, and more or less 

 strongly tapering behind, usually somewhat distorted and asymmetri- 

 cal ; derm at maturity heavily chitinized, brown, the abdominal seg- 



