458 bulletin: museum of comparative zoology, 



thickened at tips, extending one fourth their length beyond the occipital 

 corners. Joints 3-8 of funiculus a little broader than long, gradually 

 increasing in length towards apex; the basal joint of club one half as 

 long as the terminal. Eyes small, located at the middle of sides of 

 head. Mandibles long and rather slender with about seven short 

 teeth on the blade, the penultimate and apical larger than the others. 

 Pronotum concave at middle of front; on the side anteriorly with a 

 sharp, minutely tuberculated crest; the median surface posteriorly 

 with a pair of short, parallel tuberculated ridges, half as far apart as 

 those lateral and anterior, extending half the length of the pronotum 

 with a depression between them and the lateral margin ; inferior spine 

 short and acute. Promesonotal impression strong. Mesonotum 

 lower than the pronotum but higher than the epinotum ; at sides with 

 a bidentate crest. Epinotum with subequal base and declivity, the 

 latter very abrupt. Base margined with tuberculate ridges, which 

 terminate in spines, which are stout, acute and about half as long as 

 the declivity. Petiole elongate; the node globular, shorter than the 

 distance to point of insertion. Postpetiole twice as broad as petiole, 

 broader than long, sides evenly convex, posterior border truncate. 

 Gaster elongate, broadest in front of apex of first segment. Legs 

 long and stout. 



Body and legs subopaque, except the gaster, the first segment of 

 which is shining. Head with very small tubercles arranged in more 

 or less circular patterns on the front. Mandibles longitudinally 

 striate, sublucid. Body everywhere finely granular, with minute 

 tubercles, which are coarser on the petiole, postpetiole, femora, and 

 tibiae, and more scattered on the gaster. 



Body, antennae, and legs with thick, short, curved, recumbent, 

 glistening hairs. 



Color light ferruginous, the blades of the mandibles darker. 



Female (dealated). Length 4 mm. 



Head similar to that of worker. Pronotum transverse, flattened 

 above, the sides thinly margined, the margins projecting anteriorly 

 as blunt lateral teeth. Mesonotum slightly rounded above, with a 

 longitudinal pair of denticulated crests at sides and middle and between 

 these a simple carina. The posterior border of scutellum extending 

 into a pair of blunt spines. Epinotum with two long, strong spines 

 at angle of base and declivity, which are ec[ual. The rest similar to 

 worker. 



The color is somewhat darker, being light reddish brown. 



Described from one female and several workers collected at Madeira- 



