HYMENOPTERA. 133 



terior wings with one complete marginal cell, and one submar- 

 ginal, the discoidal cells obsolete. The metathorax spined in the 

 female and worker. The clypeus bidentate. 



1. MYRMECINA LATREILLII. PI. IX. figs. 8-12. B.M. 



Myrmecina Latreillii, Curtis, Brit. Ent. vi. 265 <J ; Trans. Linn. 

 Soc. xxi. 218. t. 23. f. 22?. 



Smith, Brit. Form. 132. 1. 



Mayr. Form. Austr. 149. 1 ; Ungar. Ameis. 18. 1. 

 Myrmica striatula, Nyl. Addit. Alt. Mon. Form. Bor. Eur. 40. 7; 



Form. Fr. et d'Alger. 96. 24. 

 Myrmica bidens, Foerst. Hym. Stud. Form. 50. 24. 



Schenck, Beschr. Nass. Ameis. 94. 



Myrmica graminicola, Foerst. Hym. Stud. Form. 58. &). 

 Hab. Europe. 



2. MYRMECINA PILICORNIS. 



Male. Length 1 line. Pale rufo-testaceous, smooth and 

 shining : the antennae and legs white ; the head with a dusky spot 

 on the vertex, enclosing the ocelli, which are placed in a curve, 

 the posterior pair on the extreme margin of the vertex; eyes 

 large, placed anteriorly on the sides of the head, which is widest 

 in front; the antennae tapering to the apex, very pubescent. 

 Thorax : the wings milky-white, their margins fringed with pu- 

 bescence. The abdomen more or less fuscous. 



Hab. India (Bombay). (Coll. East India House.) 



3. MYRMECINA GRATIOSA. B.M. 



Worker. Length 4 lines. Head, thorax, legs, and nodes of 

 the petiole, ferruginous ; abdomen smooth, shining black. Head 

 large, wider than the thorax or abdomen, longitudinally striated, 

 the striae stronger and more deeply impressed on the anterior por- 

 tion of the face; the mandibles triangular, striated, and armed 

 with strong black teeth on their inner margin. Thorax: its 

 margins raised, the lateral angles of the anterior margin produced 

 and acute ; the disk longitudinally striated, with a deep strangu- 

 lation between the meso- and metathorax, the latter coarsely ru- 

 gose, and having on each side a short blunt tooth ; the sides of 

 the mesothorax have also a sharp angle or tooth at their margins 

 at the verge of the strangulation, before which the sides are 

 rounded ; the femora very much thickened in the middle and 

 much attenuated at their base and apex, the tibiae slightly in- 

 crassate ; the legs very smooth and shining with the tarsi deep 



