( xlvii ) 



Coleoptera — viz. on the summit of the back of the head. He 

 had found it to exist not only in the species of Ips and 

 Cryptarcha, but also in other genera of the subfamily ; on the 

 other hand, he could not find any trace of its existence, 

 except in members of the IpsbuB. He exhibited specimens of 

 Ips and Cryptarcha, mounted to show the organ. Dr. Sharp 

 also exhibited a box of Rhynchota, chiefly Pentatomida, in 

 which the specimens were prepared so as to display the 

 peculiarities of the terminal segment in the male sex. 



Mr. E. Adkin exhibited, on behalf of Mr. H. Murray, of 

 Carnforth, a fine series of Polia ccanthomista, var. nigrocincta, 

 from the Isle of Man, and Ciclaria reticulata and Emmelesia 

 tcBTiiata from the Lake District. 



Mr. W. White exhibited a living larva of Zeuzera asculi, and 

 called attention to the chitinous scuta on thoracic segments 

 furnished with several rows of minute serrations, which 

 evidently assist progression. He stated that the larva exudes 

 from its mouth, when irritated, a colourless fluid, which he 

 had tested with litmus-paper and found to be strongly alkaline. 

 Prof. Westwood made some remarks on the subject. 



Mr. H. J. Elwes exhibited a number of insects of various 

 orders, part of the collection formed by the late Otto Moller, 

 of Darjeeling. 



Mons. A. Wailly exhibited the cocoon of an unknown species 

 oi Antheraa from Assam ; also a number of cocoons and imagos 

 of Anoplie venata from Acugua, near the Gold Coast, West 

 Africa ; specimens of Lasiocampa otiis, a South European 

 species, which was said to have been utilised by the Eomans 

 in the manufacture of silk ; also a quantity of nests containing 

 the eggs of Epeira madayascariensis, a silk-producing spider 

 from Madagascar, locally known by the name of " Halabe." 

 He also read the following extracts from letters received from 

 the Eev. P. Camboue, of Tananarive, Madagascar, on the 

 subject of this silk-producing spider. In the first letter, dated 

 9th of May, 1889, Mons. Camboue said :— 



" I have followed with interest your communications to the 

 Entomological Society during last year. How I should like 

 you to try the rearing of one of our silk-producing Araneidce, 

 the great Epeira, ' Halabe,' Epeira madayascariemis (Vins.) ! 



