INSECTS 
natural time of flight. I only know of two ‘Hooktips’ as being satis- 
factory natives, viz. Drepana Jacertinaria, L., and D. falcataria, L., both 
of which are found pretty generally wherever there is any great growth 
of birch, on which the larve feed, spinning the edges of the leaves 
loosely together and living inside the tent-like structure thus formed. 
Citix glaucata, Scop., is thinly scattered, most captures of the species 
being made when it is on the wing in the evening along whitethorn 
hedges. Dicranura vinula, L., is generally distributed and usually 
common, while D. furcula, L., is nearly as widely spread but seldom 
occurs in any numbers, and D. difida, Hb., is rare, Keswick and Great 
Salkeld being the only places where recent captures have been made. 
Mr. Charles G. Barrett in his work on the Lepidoptera of the British 
Isles records the very rare D. dbicuspis, Bork., but gives no data. 
Pterostoma palpina, L., is rather scarce but occurs in most districts. 
Lophopteryx camelina, L., is attached to birch and is fairly common. L. 
carmelita, Esp., occurs rarely among the lakes. Nosodonta dictea, L., and 
N. dicteoides, Esp., are met with throughout the county amongst sallow 
and birch respectively. The very variable larva of N. dromedarius, L., is 
to be beaten in surprising numbers from stunted birches growing on wet 
moors in the Lazonby district ; it is taken elsewhere in small numbers. 
N. ziczac, L., is widely distributed and like the other ‘ prominents’ is 
usually taken in the larval state. N. trepida, Esp., is very rare ; one or 
two specimens have been captured by the Keswick collectors. WN. 
chaonia, Hb., is also very rare and is largely confined to the southern 
half of the county. Cockermouth is given in Stainton’s Manual as a 
locality of N. dodonea, Hb., but I cannot learn anything concerning 
the source of this record. Occurring everywhere, Phalera bucephala, L., 
is so well known as to call for no remark. P. pigra, Hufn., is at 
times extremely common in the larval state on sallow near Carlisle, 
despite Barrett’s assertion that it occurs ‘very rarely in the county.’ 
The late Thomas Armstrong of Carlisle records P. curtula, L., as 
plentiful (Weekly Intell., vol. vii. p. 30) and Barrett says that Cumberland 
“seems to be its northern limit,’ but I do not know of its recent 
occurrence with us. Thyatira batis, L., is fairly common at ‘sugar’ 
everywhere. T. derasa, L., is common at Keswick, which is the only 
locality known at present. Cymatophora or, Fb., appears to be nearly 
altogether confined to the neighbourhood of Carlisle, where it is a 
regular visitor to ‘ sugar > in June, and the larve may be found spun up 
in aspen leaves later on in the year. C. duplaris, L., is attached to birch 
and is more widely distributed than the last-named. C. fluctuosa, Hb., is 
not uncommon near Keswick on the authority of Mr. Beadle.’ Asphalia 
diluta, Fb., visits sugared trees in small numbers, while 4. favicornis, L., 
may be found in March resting on the main stems of birch bushes. 
A. ridens, Fb., has occurred near Keswick and Cockermouth in very 
limited numbers. 
” 
1 Mr. H. Goss informs me that he has taken C. fluctuosa at “sugar” on a “moss” near 
Keswick.—F. H. D. 
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