June, 19 1 2.] Wheeler: Notes on a Mistletoe Ant. 133 



clypeus also punctate. Remainder of the body with small, scattered, piligerous 

 punctures. 



Hairs pale yellow, erect, varying in length, rather sparse, mostly confined 

 to the dorsal surface of the body. Pubescence long, but very sparse, distinct 

 on the head, gaster and legs. 



Rich reddish brown; head and antennae, especially the scapes, darker; 

 legs paler and more yellowish. 



Male. — Length 2 mm. 



Head subcircular ; eyes very large ; cheeks very short, posterior margin 

 rounded behind the eyes. Mandibles minute, edentate, pointed. Antennal 

 scape scarcely longer than the globular first funicular joint, which is distinctly 

 broader than the succeeding joints ; joints 2—6 as broad as long, remaining 

 joints longer than broad. Thorax as broad as the head, similar to that of the 

 female, but its epinotum is unarmed. Petiole and postpetiole like those of 

 the worker, but their nodes are more rounded. 



Sculpture and pilosity as in the female but shorter and less distinct. 



Body yellow ; upper surface of thorax and gaster brownish ; mouthparts 

 and antennae white; legs pale yellow. Wings whitish hyaline with colorless 

 veins and stigma. 



The following is Prof. Cockerell's description of the Coccid that 

 lives in the abandoned Obidocephahts burrows: 



Pseudococcus phoradendri Cockerell, new species. 



"Female. — About 2—2]/^ mm. long, 1^6—2 mm. broad, plump, reddish, 

 mealy, strongly segmented. The specimens were collected in alcohol, so the 

 nature of the mealy secretion cannot be precisely described, but it appears to 

 have been scanty. Body with scattered minute round glands and small hairs ; 

 bristles of anal ring and the very low caudal lobes short. Legs and antennae 

 a lively clear yellowish ferruginous. The following measurements of legs and 

 antennae are in microns (/jl). 



Middle leg: femur and trochanter, 300 /x long (width of femur 80); 

 tibia 135; tarsus (excluding claw) 88; tarsal digitules 38. rather stout, with 

 very small knobs ; claw digitules moderate ; claw short, curved, with no inner 

 tooth. 



Labium elongate, two-jointed, 150 /x broad at base. 338 long. 



Antennae 8-jointed, joints measuring (i) 58-60, (2) 63-68, (3) 55-58, (4) 

 35, (5) 50-55, (6) 50-53, (7) 50-55, (8) 93-108. 



Hab. Miller Canyon, Huachuca Mts., Arizona, 5,500 ft., Xov. i, 

 1910 (W. M. Wheeler). Found in hollow stems of Phoradcudron 

 flavcscens var. villosiim (Xuttall), attended by Crcmasto gaster ari- 

 zoncnsis Wheeler. 



This little species reininded me strongly of the South American 

 P. missionnm Ckll., but although that has similar antenn?e, its femora 



