XXVlll INTRODUCTION. 
well as Puebla, Amecameca, the Volcanoes of Popocatepetl and Ixtaccihuatl, and 
Orizaba, were visited by myself in 1887-88, in company with Mr. Elwes. I also 
made an expedition to Tabi, Ticul, Valladolid, and other places in Northern 
Yucatan. M. Blancaneaux, in British Honduras, collected in the vicinity of 
Belize, on the rivers Hondo and Sarstoon, and at Cayo in the Western District. 
Salvin’s three visits to Guatemala, in one of which I accompanied him, were chiefly 
devoted to ornithology, but he obtained many butterflies during his travels, particularly 
at Duefias, near Antigua, San Gerénimo, in Baja Vera Paz, the coffee-estate of “ Las 
Nubes ” (on the Pacific slope, generally termed Cerro Zunil in this work, to avoid 
confusion with another place of the same name near the capital), Choctum in Alta 
Vera Paz, and the Polochic Valley. On his way home he collected a few insects along 
the Line of the Panama Railroad, where he met M‘Leannan, from whom we afterwards 
received many interesting butterflies. Salvin also made a journey to Peten, from 
Coban, returning again to the city of Guatemala by way of Belize and Yzabal, but 
on this trip he paid but little attention to entomology. Enrique Arcé was engaged 
by us during our joint visit to this country, and we afterwards sent him to Chiriqui 
and Veraguas, in the State of Panama. Mr. Champion, in Guatemala, collected in 
the Polochic Valley, the Senahu and San Juan district to the north of it, and Sabo, 
Panima, Sinanja, &c. to the south; Cubilguitz, Cahabon, Lanquin, Chiacam, Coban, 
‘Tactic, Purula, San Gerénimo (where he had his headquarters for one year), &c., in 
Vera Paz; the Los Altos region (Quezaltenango, Ostuncalco, Totonicapam, Quiché, 
&c.); the neighbourhood of Antigua, including the Volcanoes Agua and Fuego, and 
of the capital; and almost the entire length of the Pacific slope, from the El] Tumbador 
district in San Marcos to the Rio Maria Linda, including the Rio Naranjo, Coatepeque, 
Champerico, Retalhuleu, San Isidro, Las Mercedes, Cerro Zunil, El Idolo, the Lake 
and Volcano of Atitlan, San Agustin, Pantaleon, Zapote, Mirandilla, Torola, San José, 
Paso Antonio, &c. In the State of Panama his investigations, like those of Ribbe, 
Trétsch, and Arcé, were limited to the Pacific slope (Vivala, Alanjé, Bugaba, David, 
Caldera, Los Remedios, Tolé, Pefia Blanca, the eastern, southern, and western slopes 
of the Volcan de Chiriqui, &c.); but he also visited Taboga and the Pearl Islands, the 
neighbourhood of the city of Panama, Colon, &c. Mr. Rogers devoted his attention 
to various places in Costa Rica—the Volcan de Irazu, Caché, Rio Sucio, &c. 
Messrs. Arcé, Champion, Richardson, Rogers, Smith, and Trujillo were specially 
employed by us in various countries as collectors, subsequent to the visit of Salvin 
and myself to Guatemala in 1861, their several expeditions extending over nearly 
forty years. 
