86 



cnejus F Lampides baelica, Cram., Maruca tistulalis, Gey., Nacoleia 

 indicata, ¥.,Nupserha bicolor, Psalis securis, Hb., Syntomis passalis F., 

 and Azazia rubricans, Bdv. ; on red gram [Cajanusindicus), Exelashs 

 atomosa, Wlsm., and Stauropus alterniis, Wlk. ; on green gram 

 (Phaseolus mimgo), Azazia rubricans, Bdv. ; on horse gram {Dolichos 

 hiflorus), Nacoleia indicata, F. ; on sugar-cane [Saccharmn officinanini), 

 Pvrilla perpusilla, Wlk. 



"On cotton, Sylepta derogata, F., Dysdercus cmgulatiis, ¥., Oxycarenus 

 laettis, Kby. ', Phtyedra {Gelechia) gossypiella, Saund., and Eariasfabia, 

 Stoll.' 



MoREiRA (C). Uma Praga da Beringela. [A Pest of Egg-plants.]— 

 Chacaras e Quintaes, S. Paulo, xxiv, no. 5, 15th November 1921, 

 p. 392, 1 fig. 



A beetle injurious to egg-plants in the State of Parana has been 

 identified as Diabrotica speciosa, which also does much damage to 

 water-melons, tomatos, etc. Carbolised tobacco extract, either with 

 or without the addition of soap, is the insecticide recommended agamst 

 this beetle. The formulae are : Tobacco extract (containing 7 per 

 cent, nicotine and 1 per cent. carboUc acid) 3 qts., water 25 gals. ; 

 or tobacco extract 2-3 qts., soft soap 5-6| lb., water 25 gals. 



Trouvelot (B.). Observations biologiques sur VHabrobracon johan- 

 senni.VieT.— C.R. Soc. Biol., Paris, Ixxxv, no. 35, 3rd December 

 1921 ,'pp- 1022-1024. 



The Braconid, Habrobracon johansenni, Vier., has been recently 

 introduced into ' France against Phthorimaea operculella, Z. (potato 

 tuber moth). Parasitism of the larva occurs during the short time 

 between the construction of the cocoon and pupation. The adult 

 pierces the body of the larva and sucks the juice that exudes from the 

 puncture, as in the case of Aphelinus mali attacking Eriosoma lani- 

 geruni ; but, owing to the fact that the ovipositor of the parasite has 

 first to' pierce the cocoon and that there is a considerable space between 

 the larva and the wall of the cocoon, this is often a matter of some 

 difficulty, and a series of punctures is often made, a sort of connecting 

 tube being constructed by working with the ovipositor a mucilaginous 

 substance apparently excreted from the abdomen of the parasite. 

 This tube extends from the point at which the larval body has been 

 pierced to the surface of the cocoon, and through it the parasite sucks 

 the body juices of its host. The eggs are laid beside the body of the 

 host, and the young larvae feed at its expense. 



This method of parasitism and suction resembles that of the 

 Chalcid, Habrocytus cionicida, parasitising the weevil, Clonus thapsi 

 [R.A.E., A, X, 22]. 



Britton (W. E.). Spray now to kill European Red Mite. — Connecticut 

 Acric. Expt. Sta., Neic Haven, Bull. Immediate Inform. 13, 

 10th March 1921, 3 pp. [Received 13th December 1921.] 



This information concerning the occurrence of the European red 

 mite [Paratetranychus pilosus, Can. & Fanz.] in Connecticut has 

 already been noticed [R.A.E., A, ix, 293]. 



