402 



At, last a few Caddis-flies (Trichoptera) have been taken. 

 Halesus radiatus, Curt.,* sent by Mr. Nicholson ; Phryganea 

 grandis, Linn., one undated male from Mr. Nicholson, and a pair 

 taken in cop. by Mr. Sich on a tree-trunk in the Arboretum, 

 6th July, 1907 ; a female Mystacides longicomis, Linn., sent by 

 Mr. Nicholson ; and Leptocerus aterrimus, Steph., also from 

 Mr. Nicholson. (Mr. K. J. Morton kindly assisted with the 

 identification of a few of the Neuroptera.) 



Hymenoptera. 



The very handsome Ghrysis ignita, Linn., a common parasite 

 on various Hymenoptera and very variable in size. It was sent 

 by Mr. Nicholson, who obtained it at Queen's Cottage. (Mr. E. 

 Saunders examined it.) 



A small male of Apanteles juniperatae, Bouche, a parasite bred 

 from larvae of Urapteryx sambucata, Linn., 5th September, 190G. 

 Mr. Claude Morley, who examined it, says it is not a very common 

 species, and has not been bred from this ho3t before, though it has 

 been reared from the allied Odontopera bidmtata, Linn. 



COLEOPTERA. 



Relops striatus, Fourc, and Dromius meridionalis, Dej., taken 

 when sugaring on 22nd September, 1906. (Examined by Mr. F. 

 B. Jennings.) The former appears in the earlier list, 



A large living beetle bred from a pupa which reached the 

 gardens in a Wardian case from Tobago, 29th August, 1906. 

 Mr. J*. J. Arrow, who examined it, says that it belongs to the 

 family JJynastidae, and is a member of the genus Stralegus. 

 Being a female its species cannot be properly determined. 



Tropical Cockroaches. 



W. Watson. 



The tropical plant houses at Kew are infested with cockroaches 



which are only prevented from doing a great deal of damage to 



J? P lants ^ ^nstant trapping. At least three species are 



injurious, namely, Blatta oriental*, Linn., B. (Periplaneta) 



S'T a i Lmn -' and B - ( p -) australasiae, Fab. the second 

 being the largest and the third by far the most abundant. Their 



S" 6 f^? les an <* corners about the stages and hot-water 

 pipes the sheathing bases of palm, banana and pandanus leaves, 



SSL, i Ug - !u Cr ° 1 cks in lar S e P^t-pots and tubs. They are in 



aW J; Urmg + i, * ? ay ' but at ni ? ht the y com e out and run or fly 

 aoout among the plants, devouring flowers and leaves like rabbits. 



h»™ i? ?i Z* LucJiari ^ Orinum and Alpinia, when in flower, 

 I"! iv„ n V^ nc ® m th : e P al ™ house, where the cockroaches are 

 rwlwl ^ hey also find out the Opening bananas and soon 



more it ' T^ 7 ."* aS clever a8 mic e in scenting food and 

 S n cleV T f in learning what to avoid in the shape of a trap or 



Zwi^V, h ? le treacle at the bottom will trap them for 

 sutT 3 ' hen S e bait mU8t be chan S ed t0 b eer, linseed oil or 

 Po!L« Zl ' oih *™™ th e cockroaches cease to be attracted, 

 roisons, such as phosphorus paste or « Beetle-cute," have no 



