326 ANNALS NEW YORK ACADEMY OF SCIENCES 



Head more shining and sometimes of the same yellowish red color as the 

 thorax and legs. Antennae dark red throughout. Pilosity as in the worker 

 major. 



Female. Length, 13-15 mm. 



Head broad, much like that of the worker major. Dorsum of thorax and 

 gaster smoother and more shining. Petiole compressed auteroposteriorly. with 

 sharper border, somewhat notched in the middle above. Color and pilosity as 

 in the worker major, except that the erect hairs are shorter and somewhat 

 sparser, and that in some specimens (probably immature) the mesonotum has 

 three pale brown blotches. Wings long (14 mm.), grayish hyaline, suffused 

 with yellow only near the costal margin ; veins and stigma yellowish brown. 



Florida: Lake Worth (Jerome Schmitt) ; Miami and Key ' Largo 

 (Wheeler) ; Caloosahatchie Eiver (Heil). 



Georgia: St. Mary's (0. Bangs). 



This ant is not uncommon in southern Florida, nesting in old stumps 

 and logs. Like the other subspecies of ahdominalis, which are widely 

 distributed over tropical America, it is very pugnacious. Occasionally it 

 is found nesting in epiph3^es in the green-houses of the northern states. 

 I have before me a series of workers taken by Mr. G. von Krockow from 

 a vigorous colony that had been living for some time in one of the hot- 

 houses of the New York Botanical Garden. The male, which I have not 

 seen, is described by Mayr as indistinguishable from that of the typical 

 ahdominalis of Brazil, and it is probably very much like the male of the 

 subspecies transvectus described below. 



24. C. abdominalis transvectus subsp. nov. 



TTorfcer major. Length, S-9 mm. 



Resembles floridanus, but differs in the smaller average size and in the fol- 

 lowing particulars : foveolte on the cheeks elongated and deeper ; cheeks and 

 sides of head with erect hairs ; vertex of head very dark brown or black ; hairs 

 somewhat more abundant, especially on the antenual scapes ; pubescence longer 

 and more conspicuous. Thorax, legs and gaster colored as in -floridaniis. 



Worker minor. Length, 6-7 mm. 



Differing from the worker minor of floridanus in the same characters as the 

 worker major. 



Female. Length, 12 mm. 



Resembling the worker major, but with the mesonotum and scutellum 

 blotched with black. Wings as in the female floridanus. 



Male. Length. 7 mm. 



Head through the eyes about as broad as long ; cheeks converging somewhat 

 anteriorly, shorter than the eyes. Mandibles rather broad, bidentate. Thorax 

 robust, with rather steep epinotum, its base shorter than the declivity, which 

 is slightly concave. Petiole low and thick, transverse, with l)lunt margin. 

 Gaster small, legs and antennae slender. 



