Vol. xxiv] ENTOMOLOGICAL NEWS. 141 



in parallelus the mandibular tooth is perpendicular, while in 

 brcvis it is horizontal and parallel to the mandible. 

 Adjourned to the annex. 



Meeting of November 2Oth, 1912, at 1523 S. I3th St., Phila- 

 delphia; twelve members present; President Haimbach in the 

 chair. 



Mr. J. Wagner Green, of Easton, Pa., was elected an ac- 

 tive member of the Social. 



Mr. Wenzel exhibited two interesting boxes of Chryso- 

 melidae including Odontota, Cassida, etc., remounted and re- 

 arranged. 



Mr., Kaeber exhibited Hcterocerns brunnciis Melsh. (Col.) 

 from Phila. Neck, VII-4-'i2, which he had caught by throw- 

 ing water on the mud banks, after which they could be seen 

 as they leave the ground and easily captured and are ap- 

 parently dry when taken. 



Mr. Laurent exhibited eggs of a Neuropteron fastened to 

 a leaf, Mt. Airy, Pa., VI-24. These were identified by Mr. 

 Daecke as a "lace wing," Chrysopa sp. 



Adjourned to the annex. 



The twenty-fifth annual meeting was held December i8th, 

 1912, at 1523 S. I3th St., Philadelphia; eight members were 

 present ; Vice-president H. A. Wenzel in the chair. 



Letters of congratulation on the Social's reaching the quar- 

 ter century mark were read from Dr. Calvert and C. T. 

 Greene. 



Prof. Calvert exhibited some Costa Rican Odonata of the 

 genus Thauniatoncura collected by himself. He stated that 

 they were water-fall dwelling insects and he had caught them 

 only at three falls of the several visited. Where they \vere 

 missing he had noticed lizards about and as they are slow-flying 

 insects this might account for their absence. A pair of each 

 of two species (caught in coitiO were shown and while great 

 differences were easily seen in the males, it was almost im- 

 possible to distinguish the females of T. pcllncida and T. in- 

 op'mata. 



Mr. Wenzel exhibited several specimens of Phamicus canii- 



