284 [December, 1911. 



i-emarkably thickened. Mr. W. J. Lucas, five si^ecimens, three S i ^^^ two ? 9 

 of Panorpa gennanica* taken by Col. Yerbiiry, four at Dingwall in May, and one 

 at Lockinver in July. One (J is practically immaculate, and the other two 

 nearly so ; the ? from Dingwall is sparsely spotted, while the one from 

 Lockinver is more nearly normal. Five normal specimens from 

 Surrey and Hants were shown for conqjarison. Mr. C. J. Grahan, a living 

 specimen of As2)ldomorpha silacea, Boli., an African species of Cassididm, which 

 had been sent by Mr. G. St. John Mildmay from Nyali in British East Africa on 

 October 7th, reaching London on October 28th. Dr. K. Jordan annoimced that 

 the Polyctenidse, which are parasitic on bats in the tropics, are viviparous like 

 the parasitic Orthopteron Hemimerus. The yoimg are born at a very advanced 

 stage, but yet differ considei-ably from the adult. Two of the forms {spasmse 

 and talpx) described as distinct species, and lately placed in two difPerent 

 genera, are immature and adult examples of the same species. Mr. Harwood, 

 two specimens of Micruriila rnelanocephala taken near Bishop's Stortford by 

 sweeping in the evening, which he believed to be var. hrunnea, Heer. Also two 

 specimens of Ocyptis cyancus taken by Mr. W. H. Harwood at Colchester, one in 

 May and the other in June of tliis year, the first specimens taken in the district 

 for nineteen years. Also a species of Coccinella taken in a case of Tasmanian 

 apples at Colchester. Mr. H. Eltringham, specimens of African Acrxas, to show 

 that wide differences of colour and pattern may occur in a single species, and 

 conversely, that certain species which can scarcely be distinguished by their 

 oxitward appearance are nevertheless very distinct, as shown by the sti'ucture of 

 the male armature. Several new species and forms were also shown, including 

 A. lofua, Eltr., S and 9, A. grosvenori, Eltr., ^ , A. aureola, Eltr., g , A. ella, 

 Eltr., (? , A. cinerea subsp. alberta, Eltr., S , A. periphanes f. acritoides, Eltr., J, 

 andj4. astrigerai. brunnea, 'Eltr., S find 9. Dr. Jordan remarked on the extreme 

 variability of the genus and its allies, geographically, individually, and even in 

 the characters of the genitalia. Mr. Bethune-Baker remarked on the 

 imreliability of the genitalia in certain Lycaenidse. The President stated that 

 the (? genitalia were, as a rule, reliable in the Aculeata, but in the Tenthredin- 

 idse the J genitalia were quite useless for specific determination, though the 

 9 s afford excellent characters. The Hon. Walter Rothschild remarked on the 

 identity of the S genitalia in certain distinct species of Macroglossinss. Com. 

 Walker read a paper on " The Effect of Temperature on Animal (especially In- 

 sect) Life," by A. G. Butler, Ph.D., F.L.S. The following papers were also 

 communicated — " Parthenogenesis iUjWorker Ants, with special reference to two 

 colonies of Lashis niger, Linn.," by W. C. Crawley, B.A. ; A Monograph of the 

 genus Acrsea," by H. Eltringham, M.A., F.Z.S. — G. Wheeler, Hon. Sec. 



* This is variety honalix, and is a common Scotch form.— G. T. P. 



END OF VOL. XXII (Second Series). 



