210 FOBMICIDJE. 



the metanotum long, rounded above and truncate at apex. 

 Pedicel elongate; the nodes from above square, subequal, the 

 1st node anteriorly petiolate ; abdomen not much longer than and 

 similar to that of the % . Wings as in the $ . 



Length, $ 1-8-2-3; $8-9; rf 4-4-5 mm. 



Hab. Throughout our limits, and spread (probably carried and 

 introduced by shipping) through the torrid regions of both 

 hemispheres. 



243. Monomormm minutum, Mayr, Verh. zool.-bot. Ges. Wien, v 



(1855), p. 453, $ . 

 Myrmica (Monomorium) carbonaria, Smith, Cat. vi (1858), p. 127. 



$ . Head and thorax dark chestnut-brown, abdomen black, 

 sometimes entirely black (Smith's type); very smooth, polished 

 and shining ; pilosity pale, very sparse. Head longer than broad, 

 posteriorly transverse ; mandibles narrow, with the masticatory 

 margin oblique, armed with 4 teeth ; clypeus very convex, ante- 

 riorly rounded ; antennae moderately long, the scape very nearly 

 reaching up to the top of the head ; eyes comparatively large, 

 placed in the middle of the sides of the head. Thorax : the pro- 

 mesonotum convex, moderately large, the meso-metanotal suture 

 and emargination well-marked ; the metanotum compressed, basal 

 portion rectangular, flat, the apical portion truncate, vertical. 

 Pedicel : the nodes from above subequal, the 1st node a little more 

 rounded and petiolate anteriorly; the 2nd node transverse, broader 

 than long, not broader but lower than the 1st node ; abdomen 

 oval. 



Length, $ 1-5-2 mm. 



Hab. Eecorded within our limits from Travancore (Roihney} ; 

 found also in Southern Europe, Africa, and North America. 



The above description is of M. carbonarium, which there is no 

 doubt is but a slight variety of the European M. minutum, Mayr. 



244. Monomorium gracillimum, Smith (Myrmica), Jour. Linn. Soc. 

 vi (1861), p. 34, . 



5 . Head and thorax reddish yellow ; antennae, legs and the 

 nodes of the pedicel a paler shade of the same ; abdomen dark 

 brown, with a patch of very pale rather sordid yellow at the base ; 

 head, thorax and abdomen smooth and shining, with some minute 

 widely-spaced shallow punctures, the metanotum above delicately 

 and rather obscurely transversely striate ; pilosity pale, very 

 sparse. Head remarkably convex, a little longer than broad, 

 the posterior lateral angles completely rounded, the occiput be- 

 tween them transverse ; mandibles with the masticatory margin 

 very oblique, armed with 4 teeth ; clypeus convex in the middle, 

 the anterior margin depressed inwards ; antennae short, slender, 

 the scape falling short of the top of the head by one-fourth of its 

 own length ; eyes small, lateral, placed below the middle of the 



