ZOOLOGY 91 



S. lugens. 

 * S. protusus. 

 Pyrota mylabrina, Cheor. 



Meloe sp. Was quite common about the base of Mt. Tay- 

 lor and westward, but has not been seen about Albuquerque. 



LEPIDOPTERA 



The mesa as a whole is very poor in this order. The fol- 

 lowing are characteristic and a number of others await iden- 

 tification. 



Lycaena acmon. Wagon Mound. 



Meganostoma caesonia, Stall. Southern Dog-face. 



Pachysphinx modesta. 



Pholisora catellus, Fab. (N). 



Terias mexicana. 



Pronuba yuccasella, R'dey. Is common in the blossoms of 

 Yucca glauca. 



Two other Teneids are common under the dead stems of 

 Yucca all winter and often fly about on the warmer days. 



HYMENOPTEHA 



Nomia nevadensis, Cress. A bunch of twenty males of 

 this species were one morning taken from a head of Hymono- 

 pappus where they were massed like a diminutive swarm of 

 honey bees. 



Perdita callicerata. 



Campyloneurus sp. Exceedingly common on the mesa 

 specially in May, about the wild gourd vines. 



Chelqn sp. About Astragulus caryocarpus. 



Ellis sp. ("Close to hyalina.") On Groton texensis. 



Pogonomyrmex occidentalis, Cress. The low mounds sur- 

 rounded by a space several feet in radius, cleared of all vege- 

 tation and covered with pebbles brought by these harvester 

 ants, are one of the most characteristic features of the mesa. 

 They form one of the chief sources of food for the "horned 

 toads'' which, if the colony is too active, sometimes have the 

 tables turned on them. The larger species of Eleodes are 

 very fond of the seeds of grass collected by these industrious 

 harvesters and are often to be seen searching the ground 

 for a seed that may have been overlooked. The habit of these 

 ants of bringing their stores of grain out to air occasionally 

 is well known. In this connection the writer once made an 



