Dec, I910. 1 Wheeler: North American Camponotus. 231 



Worker minor. — Length 3.5-5.5 mm. 



Resembling the worker major in color and sculpture, but the head is more 

 shining in front and the piligerous punctures on the cheeks and clypeus are 

 less numerous and conspicuous. 



Female. — Length 9.5-10 mm. 



Like the worker major, but the mandibles, cheeks and clypeus seem to be 

 even more densely covered with piligerous foveola. Metanotum and scutellum 

 entirely black, or the latter is merely bordered with black. There is a small 

 black spot at the insertion of each pair of wings. Tibiae and tarsi sometimes 

 brownish. Wings strongly suffused with yellow, with brownish-yellow veins 

 and stigma. 



Male. — Length 5.5-8 mm. 



Resembling the male of subbarbatiis but the thorax and head, except in 

 front, are more shining, and the mandibles, cheeks and clypeus have longer 

 and more numerous foveols and bear more numerous hairs. Body black ; 

 antennal funiculi and tarsi brown ; wings whitish with pale yellow veins and 

 stigma. 



The types of this subspecies came from Texas. I have seen many 

 specimens from the following localities : 



Texas: Austin and Delvalle in woody galls of Holcaspis cinerosa 

 on Oitcrcns virginiana (Wheeler) ; Clebourne (O. P. Eastwood) ; 

 Paris (Miss Augusta Rucker). Esperanza Ranch, Brownsville (C. 

 Schaeffer), Llano (J. C. Crawford), Dallas (Jones & Hood) ; Corpus 

 Christi (Jones & Pratt) ; San Antonio (F. C. Pratt). 



Oklahoma: Ponca City (A. C. Burrill). 



Missouri: Doniphan (Jerome Schmitt). 



Illinois: Algonquin (W. A. Nason). 



The habits of this form are the same as those of rasilis. It 

 occurs in the same localities and sometimes on the same trees. It is 

 constant in coloration and in possessing the elongate piligerous 

 foveolje on the cheeks and clypeus in all four phases. 



II. C. fallax discolor var. clarithorax Emery. 



C. margiiiatns subsp. discolor var. clarithorax Emery, Zool. Jahrb. Abth. 

 f. Syst., Vn, 1893. p. 678, $$c?. 



Worker major. — Length 7-8 mm. 



Head, mandibles, clypeus and antennse uniformly chestnut brown or 

 blackish ; thorax yellowish-brown, sometimes darker behind ; legs yellow ; 

 petiole dark brown ; gaster black with yellowish margins to the segments. 

 Head densely punctate or shagreened, subopaque, more shining behind ; cheeks, 

 clypeus and mandibles with distinct but more scattered elongate piligerous 

 foveolae than in discolor. Gula with numerous short hairs. Thorax somewhat 

 more shining than the head but rather coarsely shagreened ; gaster superficially 



