164 



THE YOUNG NATUEALIST. 



But when the generic and specific names are used in ordinary writing or 

 speaking, it seems as incorrect to say Pieris brassica, Linn, as Pieris bras- 

 sicce, Shrank. 



I am also asked to give the rule for the use of the capital letters to the 

 to the specific name. This I cannot do for there is no rule. Insects named 

 after persons, as Haworthii, or places as Heihlandica, appears to require a 

 capital in any case. I generally use the capital myself when I omit the 

 generic name. 



NOTES AND OBSERVATIONS. 



Lafisma Saccharina.^-I have read the notes on Lapisma saccharina in 

 your June number, I may say I have noticed the insect (which we always 

 called Silver insect) for more than forty years, but alwavs on the kitchen 

 hearth, on in a warm closet near the kitchen fire. It has always been a 

 china closet, but whether the china or the warmth has the attraction I could 

 not say. We have frequently watched them running about the kitchen 

 hearth, and once when a box was left unmoved for some time near the fire 

 we found them swarming underneath. I may say I have been in four or five 

 houses in that time, but never seen them in any other part of any of the 

 houses. Having noticed them for so many years, I have been much surprised 

 to find there are people who have never seen such things. I have often 

 wondered and should like to know what they fed on. None of the kitchens 

 were cellared, so that when your correspondent's experience shows that they 

 breed in damp places, mine has been just the opposite, warmth and dryness. — 

 Isabel Robson, Stockton-on-Tees. 



EXCHANGE. 



Duplicates — Inibutata, Haworthii, Cambricaria, Filigramaria, Pulchelata, and 

 many others. Desiderata — many local species, accepted offers answered. — J. W. 

 Baldwin, 38, Dunscar Road, near Bolton, Lancashire. 



Wanted Abraxas ulmata from different localities. I will give a good return. — John 

 E. Robson, Hartlepool. 



