22 



one structure. Its function may be to strengthen the connection 

 between the parts and insure their mutual action. 



The aspect of figure 5 in Plate I is ventral to show the inner 

 surface. This is the epipharynx on which occur the sense-pits 

 of taste. These structures agree with the descriptions of the 

 "pits" or "cups" and "hairs" of taste as given by Packard. 



That part labeled sub-mentum (sm) in Plate I, figure i, is 

 shown greatly enlarged in figure 3. In a higher genus repre- 

 sented by Macroxyela ferruginea (Plate I, figure 4) we have the 

 same structure more closely related to the mentum. 



In Plate I, figure 3, is seen a chitinized portion of the membrane 

 connecting the proximate ends of the cardo (cd). This structure 

 was not followed out but it may be that it can be homologized to 

 the lora in the honey-bee mouth-parts. The mouth-parts as a 

 whole are plainly orthopterous in type and the various parts by 

 their position and structure can be homologized but only in so 

 far as the position and structure are concerned. 



ExHIBIBITIONS AND NoTES. 



Mr. Perkins exhibited the male and female of a moth, a species 

 of Epipyrops, together with their host, an Australian hopper. A 

 study of the venation shows this species to be allied to Tineidae 

 and Psychidae. 



Mr. Kirkaldy exhibited a volume of a German translation of 

 DeGeer's "Memoirs," published from 1770-1780. Mr. Kirkaldy 

 related that DeGeer destroyed almost all the copies of the first 

 volume of the original edition soon after it appeared; he also 

 stated that it contains a good many notes on the habits of the 

 insects treated of. 



Dr. Evans related some interesting experiences with the fire 

 flies (Pyrophora) in Porto Rico. He also spoke of the ver>^ in- 

 jurious mole-cricket (Scapteriscus didactylus Latr.). The Porto 

 Ricans are convinced that this mole cricket, or Changa as they 

 call it, was brought there in a cargo of guano twenty-seven years 

 ago. It is a strong flyer, burrows in the ground, is very destruct- 

 ive to all kinds of vegetation, and seems to prefer dry, loose, sandy 

 soil. 



