Sept., '02] ENTOMOLOGICAL NF.U'S. 231 



Mr. J. A. (T. Rehn exhibited pictures of the region around 

 Alamogordo, Xe\\ Mexico. 



Dr. Calvert exhibited a male and a female dragonfly from 

 Guatemala, marked as having been taken together, and belong- 

 ing to an undescribed species of Protoncura :''- The female has on 

 each side of the dorsal surface of the front part of its mesotho- 

 rax a two-pronged forked process, directed forward and up- 

 ward, one prong lying above the other in a vertical plane. 

 The male has the superior appendages at the apex of the abdo- 

 men two-branched, the branches lying in a horizontal plane. 

 The inferior appendages are longer than the superior, but un- 

 branched. Comparison of the two sexes suggests that in coitu 

 each superior appendage of the male is received between the 

 two prongs of the mesothoracic process of the female, and in 

 this way a perfect interlocking would be the result. Although 

 we have little exact information, it is usually believed that 

 among the Agrioninse (to which Protoncura belongs) it is the 

 prothora.\ of the female which is clasped by the male. The 

 speaker could not recall any other equally complicated meso- 

 thoracic structure for copulatory purposes on any of the Odo- 

 nata, and few females show such a highly developed copula- 

 tory structure on any part of the body. 



HENRY SKINNKK, Secretary. 



At the May meeting of the Feldman Collecting Social, held 

 at the residence of Mr. H. W. Wen/.el, 1323 South Thirteenth 

 Street, fourteen members \vere present. 



Prof. Smith stated that the larva- which Mr. Johnson gave 

 him sometime ago turned out to be S/t^<>/y/,i fusciata, of 

 which he bred twenty specimen-. 



Mr. H. Wen/.el stated that the egg masses from Anglesea, 

 referred to at the last meeting, turned out to be grasshopper-. 



Mr. Boerner stated that at Bcllevue, Del., May i ith, he had 

 taken three species of Dicaelusdilatatus t ambi^iuis and <>.-vr//\, 

 and upon May i8th he had taken />. dilatatiis and orali* at Ar- 

 cola, Pa. He reported '/^re/ins chalybeus iram \\V-4viIle, X. J. 



< This species, for which I propose the name Protoncura f>crijnians, 

 will be described at length in the I'.iolo^ia Centrali-Americana. P. P. 

 CALVERT. 



