( Ixxii ) 



'' Dinarcla pygmsea, Wasm., was first taken in this country 

 by Mr. J. H. Keys of Plymouth in Cornwall several years 

 ago. It was wrongly named for him D. dentata, and its host 

 Formica fusca. I this year sent it to Father Wasmann who 

 returned it as D. 2)ygmcea. It is the smallest of the genus, 

 and the thorax is much less broad in proportion to the elytra 

 than in the others. Father Wasmann stated after he had seen 

 the beetle that the ants it was found with must be Formica 

 rujibarhis, v. fuscorufibarbis. This turns out to be the case. 

 I have just been down to Cornwall, and Mr. Keys and I took 

 over a dozen of the beetle. We examined a great number of 

 nests and all the ants were this form. They make their 

 nests under stones, and we found them from the Rame Head 

 to Tregantle. 



'^ Bmardi hagensi, Wasm., was first taken in this country 

 by me last year at Bournemouth with the rare ant Formica 

 exsecta. It is a little larger than £>. p'i/gma;a, but not so large 

 as dentata, it is narrower and always of a lighter yellow 

 colour. I have taken over fifty specimens now and they are 

 all the same. Its hosts make nests about the size of a football, 

 and smaller, of grass and ling in open spaces among fir-trees. 

 " Dinarda dentata, Gr., is only found with Formica sanguinea. 

 It is a broader, darker and more robust species than hagensi. 

 Its hosts make nests either in the turf above which it raises 

 a very low cover of cut grass as at Woking, or in fir-stumps 

 as at Wellington College. It will also build under any object, 

 like an old boot or kettle. 



" Dinarda mdrkeli, Kies., is only found with Formica rufa, 

 which builds large hillocks of pine needles in fir-woods. It 

 is the largest species of the genus and the most well-known." 

 Mr. DoNiSTHORPE also exhibited a larva of D. dentata sent 

 to him by Father Wasmann, and a larva of D. pygnLS&a taken 

 by him in Cornwall. 



Mr. Norman Joy showed the following species of Coleoptera 

 first recognized as Bi'itish in 1906 : — (a) Laccobius smuatus, 

 Mots., from Lundy Island (Tomlin and Joy) and Cambridge- 

 shire (Gorham), distinguished by its smaller size and more 

 parallel form from L. Qiigriceps, Thoms. ; (6) Homalota para- 

 doxa, Rey, taken in moles' nests in Berkshire and Devon; 



