162 



Mr. Ulke exhibited iuul remarked on the habits of a unmber of rare or new aquatic 

 Coleoptera found by him the past summer in the Blue Ridge Mountains, near Mon- 

 terey, Md. 



Mr. Ulke also exhibited a pale larviform female of a species of Phengodes which he 

 found abundantly in the Blue Ridge Mountains, no males, however, being discov- 

 ered. The species was thought by Professor Riley to be Ph. laticolJis, aud the relative 

 abundance of the males aud females of Phengodes was discussed by Riley and others. 



Mr. Schwarz exhibited specimens of Emphylus americantts taken by H, G. Hubbard 

 and himself in a colony of Formica sartguinea near Alto, Utah, at an elevation of 

 about 9,000 feet. 



Mr. Ashmead read a paper on the peculiar Chalcid genus MelUobia Westw., in 

 which he discussed (1) its synonymy with Anthophorahia Newport, concluding that 

 Melitobia should take precedence; (2) its structure aud position in the classificatory 

 system, deciding that it belongs to the subfamily Tetraaticlihia aud not with the 

 Elachistina where it is now placed; and (3) its habits, recording the rearing of M. 

 megachilis Pack, from MegachUe centttncularis Linn. ; M.pelopcei Ashm. from Pelopceua 

 cementaria iu Kansas by Professor Popenoe an<l in Florida by himself; and a new 

 species which he described as M. chaJybii, bred from the cells of Chalybion coeruleum 

 taken in Maryland. 



Discussed by Messrs. Howard, Theo. Gill, Riley, Schwarz, and others. 



Dr. Marx presented a paper entitled "Preliminary Notes on the Classification of 

 the Ixodidae," in which he discussed the views of previous authors on the classifica- 

 tion of these parasites and concluded to accept with some modification the scheme of 

 Koch, as follows: Order, Acari; Suborder, Cynorhastes; Tribe I, Cetocari with fam- 

 ilies, Argasidse and Eschatorephalidse ; Tribe II, Antiocari with families Hismelas- 

 taridse, Ixodidie, aud Rhipistomidje. 



The paper also included generic synopses of the genera of the several families. 

 The scheme differs from Koch's in adding one new family, and suppressing one genus 

 and adding three new ones. The paper was discussed by Professor Gill and others. 



Mr. Howard read a note on the "Appearance of Mealy Bugs parasitized by Lepto- 

 mastix," in which he referred to the habits of the species of this Encyrtid genus of 

 Chalcid parasites and said that his attention had been recently called by Miss Sulli- 

 van to the curious fact that Mealy Bugs i>arasitized by L. dactylopii almost entirely 

 lose their waxy secretion and swell up into yellow objects closely resembling Dip- 

 terous puparia, which resemblance is heightened by the fact that the parasite in is- 

 suing cuts free a cap at the end of the scale just as the Dipterous insect forces off 

 the end of its puparium. Discussed by Messrs. Riley, Ashmead, and Howard. 



Professor Fernow gave a report on the results in Europe of the use of the new in- 

 sect lime against Psilura monacha, the use of which he stated had been a perfect suc- 

 cess. He described the process of quarantining infested areas by surrounding them 

 with poles which are then smeared with the lime, and also various machines used to 

 apply the lime to trees. Discussed by Professor Riley and others. 



Professor Riley made remarks on "A New Herbarium Pest," an article upon which 

 is published in this number. Professor Riley gave some additional notes on Panchlora 

 viridis, which are also published in this number. 



C. L. Marlatt, 



Recording Secretary. 



