- 120 - 
Xyleborus ciigcolor Slandf . 
Att^.cks ■branches of boga 'it^deloa ( Tephrosia candi.'la ) in Coylon. — 
Light (260) in 1923. • ■ - 
Xyleborus fornicrtus Eichh. , a phot^holf borer of tpa 
Attacks Derris robusta Bonth in the fi^ld in Ceylon. — Light (260) 
in 192s. 
Scclytidae (unidentified sp,) 
A scolytid foods on derris roots in storage. — G-ater ( lS2 ) in 1925. 
StaphylinidP.o 
Ox,ytrles sculptus Gray . • 
Tv'o applications of dust containing 0.75 pcrcpnt of rotoncno w.-:re 
effective. — Anon^'^nous i2)_ in 1*^37. 
Tenebrionidao . . . ^ 
Alphitobius" . laevigatus (F.) [sic.]. 
Feeds on derris roots in storage. — Federated Malay Stptes Bo-nrrtment 
of Agriculture (igU) and Miller (285) in I93U. 
" Cameria £*£ni®ter"' ■ ■' . = ■ , 
Neoton, 1/2 pound plus ,1 pound of soap to ^0 in-prri--^ 1 gcallons of v/nt^^r 
killed 100 percent of the larv^.e. — Institute of Physic-^.l and Chemical Research 
(220) in 1927. 
Gnathocerus cornutus (F.) • 
Sensitive to derris powder containing 1 percent of rotonone. -Anon\^ious 
(2) in 1937. 
The larva of this species was used by Craufurd-Benson (90) in 193^ in 
testing the susceptibility of stored-product insects to', derris, but it wns 
killed by the wetter used. 
T enebri o molitor L., the yellow nealworra 
The larvae are insensitive to derris dust. — De Bussy et al. (61) in 
1936, 
The larva is not susceptible to derrisv — Cr^ufurd-Bonson (90_) in 1938. 
Tenebrio obscurus F. , the dnrk mealworn 
The larva is not susceotiblc to derris. — Crraufurd-B^-nson (^O) in 1938. 
T riboli u--^ castaneum (Hbst.) (~T, f errugineum F. ) , the red flour beetle 
Resistant to derris powder. — Anon^.Tious (2) in 19^7' 
