490 PROCEEDINGS OF THE ACADEMY OF [Oct., 



agrioides, Cora marina, Archilestes grandis, Heteragrion tricellulare, Hyponeura 

 funcki, Argiafissa, Acanthagrion gracile, Telebasis salva, Anomalagrion hastatum, 

 Progomphus pygmceus, Erpetogomphus viperinus and elaps, Anax amazili, /Eshna 

 multicolor and luteipennis, Gynacantha septima, Orthemis ferruginea, Cannaphila 

 vibex, Erythrodiplax funerea, ^imbrata and connata var. d, Dythemis velox and 

 maya, Brechmorhoga pertinax, rapax and inequiunguis, Macrothemis pseudi- 

 mitans, Paltothemis lineatipes, Tramea abdominalis, Pantala flavescens, Lepihemis 

 vesiculosa. 



Cachi, Costa Rica (moist Atlantic slope; mean ann. temp, probably about 

 20.6° C. or 69° F.; mean ann. rainfall 1902-04, 2,200 mm. or 86.78 inches; alt. 

 1,020 m. or 3,345 ft.): Hekerina cruentata, macropus, capltalis and majuscida, 

 Archilestes grandis, Megaloprepus ccerulatus, Mecistogaster modestus, Hetera- 

 grion chrysops and erythrogastrum, Argia frequentula, rogersi, fissa, variabilis, 

 and extranea, Anisagrion allopterum and var. rubicundum, Enallagma caecum 

 novce-hispanice, Epigomplius tumefactus and subobtusus, Anax amazili, Mshna 

 luteipennis, Gynacantha trifida, Libellula hercidea, Orthemis ferruginea, Cannaphila 

 vibex, Erythrodiplax funerea and connata var. d, Brechmorhoga vivax, 

 pertinax and rapax, Pcdtothemis lineatipes, Pantala flavescens. 



SuRUBRES, Costa Rica (Pacific slope, drier; mean ann. temp, probablv about 

 25° C. or 77° F.; alt. about 250 m. or 820 ft.): Hetaerina fuscoguttata, 

 cruentata and macropus, Mecistogaster ornatus, Heteragrion erythrogastrum, 

 Perilestes fragilis, Argia translata, tezpi, pulla, frequentula, adamsi, difficilis, 

 cupraurea and oenea, Acanthagrion gracile, Ceratura capreola, Uracis imbuta and 

 fastigiata, Orthemis ferruginea, Erythrodiplax funerea and connata vars. c 

 and e Dythemis velox, Brechmorhoga vivax, Macrothemis hemichlora. 



Explanation of Plate XXVI. 



Map showing the distribution of actual mean temperatures in Mexico and 

 Central America. 



This map was especially prepared by the vvriter for the Biologia Centrali- 

 Americana, volume Neuroptera. Acknowledgment is due to Dr. F. D. Godman, 

 editor of that work, for permission to reproduce it here. It is based on data 

 from the following sources : 



For the United States: Prof. A. J. Henry's "The Climatology of the United 

 States" {Bulletin Q, U. S. Weather Bureau, Washington, D. C, 1906, 4to). 



For Mexico: 1. A map, 97 x 71.5 cm., in the library of the Academy of Natural 

 Sciences of Philadelphia, inscribed merely "Carta CUmatologica. Sebastian 

 Reyes. P. I. Senties. A. Donamette Imp. Escalade 1:3,000,000. Gravee 

 chez Monrocq fr. Paris." Thanks to the Secretaria de Estado y del Despacho 

 de Fomento Colonizacion e Industria of Mexico, I am informed, under date of 

 July 30, 1907, "que dicha Carta fue pubhcada en 1889 por disposicion de esta 

 Secretaria, haciendo los trabajos relativos los Sres. Pedro J. Senties, que era 

 Director de la Escuela Nacional de Agricultura y Comisionado de Mexico en la 

 Exposicion de Paris del mismo ano y Sebastian Reyes que fue Profesor del 

 Plantel antes mencionado." This map was reproduced without alteration, but 

 on a reduced scale (1 : 6,000,000), in Tome XI, Anales del Ministerio de Fomento 

 de la Republica Mexicana, Mexico, 1898. 



2. A map entitled "Reparticion de la Temperatura en la Republica Mexicana" 

 for the "Ano Meteorologico de 1902," published as Plancha 16, Boletin Mensuel, 

 Observatorio Meteoroldgico-Magnetico Central de Mexico, Noviembre, 1902. Senor 

 Don Manuel E. Pastrana, Director of the Observatorio, has kindly informed 

 me (Sept. 6, 1907) that the maps for later years have not been pubhshed. 



3. A number of temperature data for 70 stations in the State of Vera Cruz 

 and 49 in other parts of Mexico, gathered from all accessible sources and pub- 

 lished by the WTiter in the Monthly Weather Review, Vol. XXXVI, No. 4, pages 

 93-97, Washington, D. C, April, 1908. Issued June 16, 1908.' 



4. The topography of the country as given in the map issued by the Bureau 

 of American RepubHcs, Washington, D.C., 1900. The hmits of the central plateau 

 are taken from the map pubUshed in the Boletin Mensuel, Observat. Meteor. -Mag. 

 Cent. Mex. for July, 1901. 



