262 THE entomologist's record. 



country is Kritjeron canadensis, as I have never found it on ground 

 from which this plant was absent. It was entirely owing to my 

 noticing the abundance of this plant that I hit upon a spot where the 

 insect was in good numbers this year. I hope to make further 

 investigations with regard to this another year. I have always found 

 the best time for A. rubujinata to be the first fortnight in August, 

 though I have taken occasional specimens from early in June to the 

 end of August. 



As regards Lithostege f/riseata, I am sorry I did not know that a 

 brother entomologist was in the neighbourhood this year, or I could 

 have shown him a place where he could have obtained as many in a 

 day as he seems to have captured in five weeks. The best time to get 

 the insect in good condition is from about May 25th to June 10th. 

 The foodplant, Sisi/mbrium sophia, occurs everywhere in this district, 

 but not so the insect. I was some time before I hit upon a spot, but 

 I have usually found the insect in some numbers where it does occur. 

 The difficulty with this species is to obtain it without doing damage to 

 crops, as it is chiefly to be found among the growing corn. I am always 

 very careful to avoid doing damage, from a sense of justice to the farmer, 

 with the result that I am able to go anywhere without being " warned 

 off," My specimens are usually obtained by walking along the edge 

 of a cornfield, or in a clover field where the foodplant occurs. In 

 some seasons the larv* may be obtained in good numbers, but it is 

 not a very easy insect to rear, a large proportion of the pups drying up. 

 Moreover, it frequently, perhaps usually, lies over two winters. From 

 nearly two dozen larvte obtained in 1910 I only bred two imagines, and 

 they emerged in 1912. Like Mr. Thornewill, I have found that among 

 captured specimens, females usually predominate. I have not bred 

 sufficient to judge whether more females emerge than males, but I 

 believe this to be the case with many species. However, that is 

 another story, and I hope some day to place on record my experience 

 regarding the proportion of the sexes obtained by breeding. 



Of Spilodes sticticalh I know less than of the species enumerated 

 above, but I have taken it occasionally, chiefly in August. It occurs 

 on the same ground as A. ruhujinata: the foodplant is given as various 

 species of Artetnhia, but I never worked for the larvre. ArtonUia 

 vulgaris occurs freely on the edges of some of the fields where I have 

 obtained the insect. 



Orohena extintalh (Pionea inargaritalis) seems to be rare in the 

 district, as I have only taken a couple of specimens, excluding a worn 

 example that I released. One of them I captured within half a mile 

 of my house ; there was plenty of wild mustard where I found it, but, 

 though I tried for the larva? later, I entirely failed to find any. The 

 remaining species mentioned by Mr. Thornewill can scarcely be con- 

 sidered among the specialities of our district, as they occur in many 

 other places, and though I have taken them, I have not given them any 

 special attention. 



The Value of Protective Resemblance ia Moths. 



By the Rev. A. T. STIFF, M.A. 



In the July-August number of the Knt. IleconI there was a most 

 nteresting article, under the above title, from the pen of Lieut.-Col. 



