Clje dkrabian ^ntomobgiBt. 



VOL. VIII. LONDON, ONT., OCTOBER, 1876. No. 10 



MEETINGS OF THE ENTOMOLOGICAL CLUB OF THE 

 AMERICAN ASSOCIATION FOR THE ADVANCE- 

 MENT OF SCIENCE. 



(Concluded from September No.) 



Mr. Scudder then read an interesting paper on " Mimicry in Butter- 

 flies explained by Natural Selection," quoting largely from a recent 

 contribution by Fritz Muller on this subject, in which he gives the results 

 of observations made by him on butterflies in Southern Brazil. This 

 paper will appear in Psyche, the organ of the Cambridge Entomological 

 Club. 



Mr. Riley gave the result of some observations on the eggs of Cory- 

 dalis cornutus^ from which it would appear that the mass of eggs hitherto 

 regarded as belonging to this species are probably those of a Belostoma. 

 He had found in one day thirty or forty patches of eggs which he believed 

 to be those of Corydalis cornutus on the leaves of trees whose branches 

 overhung the water. These flat patches were very strangely arranged and 

 contained an immense number of eggs, often numbering between three 

 and four thousand in a patch. The eggs are at first translucent, but 

 become darker as they approach maturity, when the young larvae break 

 through the eggs beneath. 



Dr. Morris doubted whether these really were the eggs of C. cornutus, 

 and questioned whether the larva was aquatic at all. 



Dr. Hagen thought that there was something strange in reference to 

 these insects. Mr. Riley had kindly sent him a large number of eggs, but 

 when hatched he had failed in every attempt to keep the young larvae 

 alive. Since they are furnished with both branchia and stigmata, he 

 thought they must be regarded as water insects. 



Mr. Lintner had found the larvae under stones, but when they enter 

 the chrysalis state they make their way into the water, and in this con- 

 dition thsy are often captured in large numbers and used as fish bait. 



