INSECTS OF BEULAH, NEW MEXICO. 73 



fomicidje. 



(Jamponotus herculeanus var, pcnusylvanicus De Geer. 

 One 2 , twenty 5 . 



Las i us niger var. nconigcr Em. 



Eight 2 ?, six 55. One 9, July 27 (T. D. A. Cockerell). 

 The females are more robust than those of the eastern forms of 

 americana Em., though approximately equal in length (8.5 mm. , 

 the wings are more ample, extending beyond apex of abdomen for 

 one-half their length. 



IiasiiiK umbratus subumbratus n. subsp. — Length 7.5 mm. — Head 



and thorax sparsely, petiole and abdomen more thickly covered with erect slen- 

 der hairs, legs practically non pilose, pale ferruginous legs, testaceous, mandibles 

 edged internally with black, basal half of wings clouded blackish brown, nerv- 

 u res at base of the wing dark. 



Described from one 9 , more nearly related to typical umbratus 

 than either of the other known varieties. 



Type, Coll. Acad. Nat. Sciences, Phila. Type locality, Beulah, 

 N. M., Aug. 17, 1901 (H. Skinner). Another 9 , July 27 (T. D. 

 A. Cockerell). 



Formica rtifa var. obscurivcntris Mayr. 



Thirteen workers. The largest specimens measure 7 mm. in 

 length, they have a darker head and thorax than New Jersey 

 specimens, and with the erect hairs shorter and more plentiful on 

 dorsal aspect of thorax and on head above and below. One 9 , 

 July 27 (T. D. A. Cockerell), with wings clouded on basal half by 

 a line on apical half. 



Formica rufa var. integra Nyl. 



Sixteen 5 $ , the largest 6 mm. in length, head and thorax, as a 

 rule, somewhat paler than Pennsylvania specimens. 



Formica pallida-fulva Latr. 



One 5 agreeing with Emery's interpretation. 



Formica fusca subsericca Say. 



Eight 5 5. 

 Formica fusca var. ncoclara Em. 



Eight 5 $ • 



TRANS. AM. ENT. SOC, XXIX. (10) JANUARY. 1903. 



