LASIOPYGA 307 



KEY TO THE SPECIES AND SUBSPECIES. 



A. Under parts of body entirely black. 



a. Top of head jet black. 



a.' Hairs of brow band speckled to base ...L. leucampyx. 

 b.' Hairs of brow band white at base. 



a." Cheeks speckled L. pluto. 



b." Cheeks nearly uniform black L. nigrigenis. 



b. Top of head speckled. 



a.' Black band on upper back. 



a." Black band on upper back un- 



speckled L. boutourlini. 



b." Black band on upper back speckled.. L. opisthosticta. 

 b! No band on upper back L. aurora. 



B. Under parts of body sooty, or iron gray, or 



grayish white. 



a. No white spot on nose. 



a.' Head above to nape jet black. 

 a." No black band on chest. 



a.'" Tail speckled with cream 



buff and black L. stuhlmanni. 



b.'" Tail speckled with silvery 



white L. neumanni. 



b." Black band on chest. 



a.'" Rump tinged with reddish 



brown L. doggetti. 



b.'" Rump without reddish brown 

 tinge. 

 a."" Area between shoulders 



jet black L. princeps. 



■ b."" Area between shoulders 



speckled with gray L. carruthersi. 



b. With white spot on nose. 



a.' Head above speckled. 



a." Under part of body all speckled L. nictitans. 



b." Color generally grayer L. n. laglaizi. 



c." Under parts speckled only on 



lower half L. sticticeps. 



d." Under parts grayish white L. martini. 



