5fi 



where it is united to the base l)y an indistinct keel; there is a curved 

 indistinct keel on the sides. Male. Length 3 mm. San Marcos, Nicaragua. 



1418 Tetrasmicra Bakeriana sp. nov. 



■^'ellow. the flagellniH rufous, black above, the greater part of the 

 occiput, a broad curve<l line on the base of the mesonotum, not reaching 

 to the sides, from its centre runs a thick line which becomes gradually, 

 roundly dilated and continued to the scutellum as a thin line; on the sides 

 is a broad line reaching from the base to the apex, straight on the inner 

 side, roundly dilated on the outer side and united to a transverse band 

 on the apex, this being dilated beyond it on the outer side; from it a 

 stout line runs down the scutellum, it becoming roundly dilated at the 

 apex. The sides of the scutellum below, at the tegulae, are black. Legs 

 colored like the body, the hind trochanters, a large mark on the outer side 

 of the hind femora at the apex, a sligthly smaller one between the two 

 apical teeth, the teeth, the base of the third abdominal segment broadly, 

 and its sides more narrowly, black. Wings hyaline, the nervures black. 

 Male. Length 6 mm. San Marcos, Nicaragua. 



Face and clypeus smooth and shining, sparsely haired, the front and 

 vertex coarsely punctured. Pro- and mesonotum more strongly punctured 

 as also the scutellum; there is a thin plate-like projection on the apex of 

 the latter, with the sides broadly roundly dilated. Metanotum stoutly re- 

 ticulated. The central two teeth of the hind femora are longer, sharper 

 and thinner than the others, the apical is stouter and much broader at 

 the base; the apical is widely separated from the third and becomes 

 sharper towards the apex. Abdominal petiole two-thirds the length of the 

 hind coxae. 



Plagiosmicra gen. nov. 



Hind femora armed with four long, sharp-pointed oblique teeth in 

 the centre, two short, stumpy ones at the apex close together and two 

 small, sharp, clearly separated ones at the base. Apex of the scutellum 

 broadly transverse. Antennae 12-jointed, short and thick. Metanotum 

 short, the sides broadly rounded. Abdomen short, bluntly rounded; ovipo- 

 sitor short. Parapsidal furrows complete, clearly defined. 



Allied to Octosmicra and Protoceras, from both of which it may be 

 known by the short bhmtly pointed abdomen; from the latter it may 

 further be separated by the complete parapsidal furrows; the former has 

 the apex of the scutellum ending in "an emargihate bidentato plate", 

 cf. Ashmead. Mem. (!arnegie Museum, T, 252. 



J 41 7 Plagiosmicra Ashmeadi sp. nov. 



Yellow, the greater part of occiput, a black line in the centre of the 

 mesonotum at the base, prolonged from the outer edge in a curved line 

 to the centre, where the two unite in the centre, and from there are con- 

 tinued as a single line to the outer edges, of similar thickness; there is 

 a short line on the base of the lateral lobes, from which runs to beyond 

 the middle a stout line, which is straight on the innerside; on the outer 



