226 Journal New York Entomological Society. [V°1- xxvi. 



Enquiry of Hardy showed that it was certainly not an error. He 

 did what at that time was a marvel, viz. : penetrated on foot from 

 San Diego to Fort Yuma, and found this specimen in a grove of palm 

 trees there. Leconte was quite satisfied and so R. palmarum was 

 placed in your lists. But is the specimen really R. palmarum? I 

 doubt it. I find that R. palmarum is a different genus from the 

 Asiatic Rhynchophorus, and so far as I can judge from your book 

 (I have no specimens) your R. criientatus agrees with the Asiatic 

 forms, and not with R. palmarum. It would be worth while to have 

 the specimen examined as it is probably still extant in the Leconte 

 collection. R. palmarum instead of having the pronotum simply 

 curved at the base, is sinuate on each side there, so as to be lobed in 

 the middle, and it has the rostrum extremely coarsely sculptured at 

 the base beneath, while it is smooth in the other species. I may add 

 that I have an idea from your book that R. cruentatus may be a dif- 

 ferent genus from the Asiatic Rhynchophorus. — D. Sharp. 



Tandem Dragonflies. — At one of the smaller ponds close to Long 

 Pond, Wading River, Long Island, N. Y., on July 26, 191 7, the writer 

 saw a most unusual sight, namely three dragonflies attached and fly- 

 ing together. The species was the common Gomphus lividus Selys 

 (sordidits Hagen). First there was a male, which was holding an- 

 other male just behind him by the prothorax, this male in turn being 

 in copulation with a female of the same species. The three insects 

 were flying together along the margin of the pond and were easily 

 captured. On one occasion on Staten Island we saw a male Libellula 

 luctuosa {basalts) seize a female auripcnnis, and at another time a 

 male auripennis grasp a female L. semifasciata, but never before had 

 we witnessed three dragonflies flying tandem. 



Long Pond and the nearby Deep Pond are among the best locali- 

 ties for dragonflies on Long Island, and at the time of our visit in 

 June, 1917, we captured at the former such desirable species as Lestcs 

 eurinus, Enallagma minusculum, Gomphoidcs ohscura, Anax longipes, 

 Dorocordulia lepida, Ladona exusta deplanta, Libellula flavida, Cell- 

 themis monomelana, while at the latter were taken Dorocordulia 

 libera and Leucorrhinia frigida. Some of the species mentioned are 

 common in the Pine Barrens of New Jersey, but rare on Long 

 Island. — Wm. T. Davis. 



