1889.) 235 



six young bugs out of the inside of one of these Coccinellce. Its efficacy cannot be 

 over estimated, and an importation of the Coccinellce to infested regions would be 

 certain to be of service." 



The increase of Icerya Purchasi in South Africa is also materially 

 checked by the larvae of a species of Ghrysopa, described and figured 

 as a new species under the name of Oh. iceryce, which preys upon the 

 eggs while still in the ovisac of the female. 



Mr. Frazer S. Crawford, of Adelaide, South Australia, also writes 

 to Miss Ormerod : — 



" For the last three years I have had a colony of 1. Purchasi in a lemon tree in 

 my garden ; the other day, being desirous of obtaining some living specimens, I 

 found that every one bad been destroyed, not a single one could I find after a pro- 

 longed search. This has been the work of two parasites. First the larva of one of 

 our native Coccinellidce ; but the principal exterminator has been a Dipterous insect 

 in the shape of a minute metallic greenish-black fly." 



Neither the Coccinella nor the Dipteron has been determined. 



8, Beaufort G-ardens, Lewisham : 

 January, 1889. 



Two species of Trichoptera new to the British List. — When examining the mass 

 of material which I have brought together with the view of working out a contribution 

 to a Neuropterous Fauna of Ireland, I find the following species, which are new to 

 the Trichoptera of Britain : — ■ 



Lypefragilis, Pict. — -Very common at Laogh Corrib, near Gralway, Yewpoint, 

 and Summerhill, on the Connaught side ; Coosam Point, Shannon side, and Hare 

 Island, Laogh Pee, near Athlone. 



Agapetus delicatulus, McLach. — A few specimens of this species were taken at 

 Tore Cascade, Denough river, and in the Horses' Q-len, Mangerton, all near Kil- 

 larney. — James J. F. X. King, 207, Sauchiehall Street, Glasgow : February, 1889. 



Holocentropus stagnalis, Albarda, in Ireland. — Although it is unsafe as a rule 

 to record a species of Trichoptera from a female, yet I believe I am correct in 

 recording Holocentropus stagnalis from Doogan Laogh, near Westport. — Id. 



Note on Stenophylax stellatus and S. latipennis. — During the season of 1888 I 

 captured at two small streams near this place considerable series of the above-named 

 insects. In both localities the species were intermingled, and were represented by 

 the two sexes. 



In attempting determination I have encountered an old difficulty. The differ- 

 ences in the anal parts of the males of the two species are slight, but they are good 

 and constant ; the corresponding parts of the females, however, present no apprecia- 

 ble characters. After many examinations I have succeeded in " placing " all my 

 specimens to my own satisfaction, on the strength of a rather obscure neural character 



combined with slightly different facies. 



U 2 



