36 NORTH AMERICAN FAUNA 75 



The first record of this species for Costa Rica is that of Nelson (1965), who 

 collected 13 from a cave near Moravia de Turrialba in Cartago Province. This 

 species has not been collected at La Selva. Our specimens from Parque Nacional 

 Braulio Carrillo were mist-netted in primary forest. Lonchorhina aurita appears 

 at mid-elevations in Braulio Carrillo, but is found at lower elevations elsewhere 

 in its range. 



Parasites collected from L. aurita include the bat flies Speiseria ambigua 

 (1 male) and Trichobius flagellatus (12 males, 7 females). 



Specimens examined (8)— 1 1 km S, 4.5 km W of Puerto Viejo, 270 m [3 males, 

 USNM]; 1 km S, 11.5 km E of San Miguel, 680 m [4 males, USNM; 1 male, 

 UNA]. 



Macrophyllum macrophyllum 

 Long-legged Bat 



Long-legged bats occur from Chiapas and Tabasco, Mexico, through Central 

 America and South America to Argentina (Fig. 23). Macrophyllum macrophyllum 

 is monotypic. 



This species normally is captured over streams in forested habitats (Tuttle 1970). 

 It is known to roost in caves and road culverts (Greenhall and Paradiso 1968) but 

 probably also uses hollow trees. Gardner (1977) reported water striders (Gerridae) 

 in the diet, and suggested that Macrophyllum might be the only completely insec- 

 tivorous member of the subfamily Phyllostcminae. LaVal's (1977) data suggest 

 that young are born in June or July, but little is known of the overall reproductive 

 cycle (Wilson 1979). The biology of this species was summarized by Harrison 

 (1975). 



The species first was reported from Costa Rica by Starrett and Casebeer (1968) 

 from Guanacaste and Limon Provinces. LaVal and Fitch (1977) reported captur- 

 ing three at La Selva. One species of bat fly, Trichobius macrophylli (7 males, 

 2 females), was obtained on these long-legged bats at La Selva. 



Specimens examined (2)— Finca La Selva, 3 km S of Puerto Viejo [1 male, 

 MSB]; 7.3 mi SE of Puerto Viejo [1 female, TTU]. 



Micronycteris brachyotis 

 Dobson's Large-eared Bat 



Dobson's large-eared bat, a monotypic species, is found from Oaxaca and 

 Veracruz, Mexico, to Amazonian Brazil. Although normally associated with 

 forested habitats, this bat was reported roosting in savannahs by Husson (1978). 

 Roost sites include caves, mines, and hollow trees (Medellm et al. 1985). Good- 

 win and Greenhall (1961) reported insects and fruit from stomachs of specimens 

 from Trinidad. In Panama, Bonaccorso (1979) found evidence of a bimodal 

 reproductive pattern. 



The first Costa Rican specimens were taken by Fleming et al. (1972) in 

 Guanacaste in 1970. LaVal and Fitch (1977) reported capturing three from La Selva. 

 Apparently no specimens from the Caribbean lowlands have been preserved in 

 collections. 



