68 



have elicited iLose brilliant observations is, indeed, a high reward for my havinj^ jot- 

 ted down a few passing thoughts. We cannot but admire, in Mr. Westwood, that 

 more than Roman virtue which is ever ready thus to immolate his dearest friends on 

 the altar of Science, — to drown them, as it were, in a flood of light. 



Names. 



Elaphrus multipunctatus 

 ChliEnius nigricornis 

 Badister unipustulatus 

 Anchomenus pallipes 

 „ oblongus 



„ marginatus 



„ viduus 



„ fuliginosus 



„ Thoreyi 



Pterostichus erylhropus 

 „ minor 



„ nigrita 



„ anthracinus 



Stenolophus vespertinus 

 Bembidium doris 



Mr. Westwood had considered the depression of the scutellar region alluded to 

 was in some way connected with the presence or absence of wings, but on examina- 

 tion had found wings in both depressed and non-depressed specimens. He regretted 

 that Mr. Newman had not investigated the subject in that point of view. 



Mr. Wollastou thought the depression in question to be a malformation, arising 

 from accidental causes, probably the result of some injury received during the earlier 

 stages of the insect, as in all the species exhibited it was the exception and not the 

 rule. 



Mr. Lubbock called attention to one of the binocular microscopes which he placed 

 on the table, and explained the advantages this construction is considered to possess 

 over ordinary instruments. 



Mr. Wollaston could bear testimony to the excellence of the object-glasses. He 

 considered that, as so many persons have eyes of different focus, the eye-pieces of the 

 binocular microscope should be so constructed as to meet this difficulty. 



Grooves in the Eyes of certain Coleoptera. 



Mr. Wollaston called attention to the existence of grooves in the eyes of certain 

 Coleoptera, adducing as an illustration the genus Trixagus (or Throscus of British 

 cabinets), in which four out of five species with which he was acquainted possessed 

 this structure, more or less developed, and which he had not seen anywhere alluded 

 to. He stated that tlie impression was usually of a somewhat curved form, and ex- 

 tended, from the edge nearest to the insertion of the antennae, across the centre of the 

 eye, but that it seldom reached the opposite margin, becoming gradually evanescent 

 as it approached it; that in the common T. dermestoides it was continued but little 



