July, '08] ENTOMOLOGICAL NEWS. 337 



Simulium innoxium. V, 5, numerous ; V, 29, several. 



Tabanus lineola. VI, 15, one; VII, 15, several. 



Tritoxa flexa. VI, n, two, male and female, cop.; VI, 16, one; VI. 



23, two, male and female, cop.; VI, 24, one; VI, 28, do.; 



VII, 12, do. 



NEUROPTERA. 

 Chrysopa oculata. VIII, 4, one. 



WARNING. Collectors looking for foreign exchange should be on 

 their guard against certain unscrupulous dealers, who seem to be in 

 business for the purpose of victimizing the unwary. One of the worst 

 offenders of this sort is located at Berlin, Germany and I will cheer- 

 fully furnish the name of this shark to anybody so requesting. This 

 is his modus operandi : After carefully scanning the advertiser's list 

 of an entomological publication and having found an ad. to his liking, 

 he then proceeds to send the advertiser an interesting catalogue and 

 card, stating that he can use at least fifty specimens of every species 

 occurring in that locality and offers in exchange, value for value, speci- 

 mens from all parts of the world. The collector happy in the thought 

 of having found an opportunity for interesting additions, now sends 

 a trial package, but fails to get either exchange or letter in return. 

 After months of patient waiting, during which time he has sent several 

 requests to the dealer for the exchange due him, without even secur- 

 ing the courtesy of a reply, he, (the package having been registered) 

 has recourse to the foreign Post Office to which the package was sent. 

 This office will in due time inform him that the package in question 

 arrived and was promptly delivered to the addressee. This document, 

 may however have been preceded by several days by a letter from the 

 dealer himself, who, having been aroused from his artful slumber by 

 the inquiry to the Postal authorities, now expresses his "allergrosste" 

 surprise at the collector's seeming failure of having received his ex- 

 change, which had been sent immediately upon receipt and inspection 

 of the package, but was "not registered." He will add there had never 

 been reported to him a miscarriage of the goods he shipped, notwith- 

 standing the fact that he never registered a package. He will conclude 

 by expressing his satisfaction with the collector's goods and many many 

 regrets. Of course, these suave words are far from consoling the 

 collector, who feels he has been duped. He may now resort to threats 

 of exposure, whereupon the dealer informs him that he has witnesses 

 to the fact that a package containing correct value in foreign specimens, 

 was duly mailed to the collector; however not wishing to have the 

 collector lose all he has mailed him a box of interesting things. This 

 box will eventually be received by the collector and on opening be 

 found to contain a few common diptera, coleoptera and noctuae, which 

 the dealer has no doubt obtained without even leaving his doorsteps 

 or garden. AUG. KNETZGER, 382^ McDonald Av., St. Louis, Mo. 



