Vol. xxii] ENTOMOLOGICAL NEWS. 381 



a sketch of the place." The specimen sent by Prof. Tristan 

 was exhibited ; it is labeled, "In a rivulet near Laguna del 

 Reventado, April, 1911, J. F. Tristan," in his handwriting. 

 It is a male Argia terira Calvert and furnishes therefore the 

 record for the highest altitude for Odonata in Central Amer- 

 ica, while the highest altitude for them in Mexico is about 

 the same.* In New Mexico, Prof. Cockerell and Dr. Skinner 

 have collected Odonata at 11,000 and 10,000 feet respectively.f 

 The mean annual temperature of Laguna del Reventado is 

 probably about 52 degrees F. (n degrees C.), or 2 degrees 

 F. lower than that of Philadelphia, and there is much precip- 

 itation throughout the year. 



The same speaker also exhibited a female Mecistogaster 

 modestus Selys which had transformed from a larva collected 

 in bromeliads near Orosi, Costa Rica, by Sefior C. Picado T. 

 The imago and exuvia were also sent by Prof. Tristan. (Cf. 

 Ent. News, xxi, pp. 264, 365). 



Mr. Rehn exhibited specimens of Dorn aculeata and Mano- 

 mera blatchleyi from Indiana and Illinois. Both species are 

 rare in collections and the latter is new to the Academy col- 

 lection. The specimens were presented by Mr. Wm. J. Ger- 

 hard. 



Mr. Laurent remarked that many collectors of Coleoptera 

 started out to do "umbrella work" trusting to luck to cut a 

 stick or club on reaching the collecting grounds such a stick 

 or club being but a "make shift" at the best. The speaker 

 stated that nothing was better than a discarded broom-handle 

 or rake-handle, which can be carried to the collecting ground 

 in a fishing-rod bag; as carried without the bag, the collector 

 may be taken for a tramp which often times is the case. 



It was decided to hold the December meeting on the second 

 Monday of that month. 



HENRY SKINNER, Recorder. 



*See Calvert, The Composition and Ecological Relations of the 

 Odonate Fauna of Mexico and Central America. Proc. Acad. Nat. 

 Sci., Phila., 1908, page 460. 



fBiol. Cent. Amer., Neur., pp. 109, no. 



