MANN: THE ANTS OF BRAZIL. 465 



but like the others, nests in trees. The colonies must be very large, 

 judging from the numbers of workers seen together. The workers 

 are able to exude from the anal glands a large drop of a mustard-yellow 

 secretion. This is not, so far as I could ascertain pungent, and it had 

 no effect when applied to my skin. 



165. Dolichodcrus (Hypoclinea) bidens (Linne). 

 Taken at Para, Porto Velho, and Abuna. 



166. Dolichodcrus (Hypoclinea) bidens (Linne) var. inferior, var. nov. 



Taken at Itacoatiara and Abuna. This variety is somewhat 

 smaller than typical D. bidens, and is light ferruginous in color. The 

 punctation on the vertex is much finer. 



167. Dolichoderus (Hypoclinea) analis Emery. 



Several workers were taken at Para and Abuna. It is less common 

 than the preceding species. 



^ . . 



168. Dolichoderus (Hypoclinea) germaini Forel var. garbei Forel. 



Many workers from Ceara and Independencia agree with Forel's 

 description of this variety from Bahia. The head has the sides little 

 convex and much longer than broad; the pronotum is as broad as long. 

 In all of the series the legs are light fuscous and in some of the speci- 

 mens the thorax is considerably lighter than the rest of the body. 



169. Dolichoderus (Hypoclinea) ghiliani Emery. 

 Plate 3, fig. 19. 



]]^orker. Length 4.5 mm. 



Head one and a third times as long as broad, with convex sides, 

 rounded occipital corners and straight border. Clypeus rounded at 

 middle, the anterior border broadly rounded. Mandibles long and 

 thick, the blades finely dentate. Frontal carinae distinct, subparallel, 

 not extending to opposite posterior border of eye. Eyes oval, situ- 

 ated on sides of front, a little anterior to middle of head. Antennae 



