SALIUS. 181 



mandibles. Ocelli hardly forming a triangle, the hinder ones separated from the eyes 

 by one and a half times the distance they are from each other. Clypeus broadly 

 convex ; the middle and sides projecting in a blunt point, the intermediate space 

 being roundly incised. Head closely punctured, covered with longish white hair; 

 almost transverse behind, the sides rounded ; mandibles at the base covered with a 

 pale pile. Antennae elongate, also covered with a pale pile ; the third joint about one 

 quarter longer than the fourth. Pro- and mesonotum opaque, closely punctured ; 

 scutellum and metanotum shining, impunctate, with a bluish tinge. Prothorax short, 

 broadly rounded. Pleurae shining. Median segment short, with a rather obliquely 

 rounded slope from the base to the apex, and bearing a broad shallow (at the base 

 scarcely visible) furrow down the centre. The greyish pubescence on the pro- and 

 mesonotum is dense and moderately long, that on the pleurae, scutellum, and meta- 

 notum sparser ; the median segment bears a short pale pile, and towards the apex long 

 greyish hairs. Abdomen shining, almost bare at the base; the apical segments 

 rather densely covered with pale hair, the first four with an obscure (discoloured 1) 

 yellow mark at the sides. Pygidial area densely covered with stiff, dull rufous, 

 pubescence. Wings : the second cubital cellule small, the first transverse cubital 

 nervure being longer than the second, and with an oblique slope ; the second cubital 

 nervure is not very oblique and roundly curved — at the top it is about one fourth less 

 in length than the third at the top, at the bottom it is about the length bounded by 

 the second recurrent and second transverse cubital nervures ; the first recurrent 

 nervure is received a little beyond the middle of the cellule, the second beyond the 

 basal third. The wings have a fuscous tinge ; and there is a small cloud in and below 

 the apex of the second cubital cellule ; the apex has also a narrow cloud. The first 

 spot on the abdomen is small and round, the second is the largest and longest, the 

 other spots being smaller. Legs pruinose ; the tarsi very long ; the long spur of the 

 hind tibiae not reaching to the middle of the metatarsus. 



^18. Salius teapensis. 



Niger, argenteo-pilosus ; alis clare hyalinis, late brunneo-bifasciatis. $ . 

 Long. 11 millim. 



Hab. Mexico, Teapa in Tabasco (H. H. Smith). 



Head short, broader than the thorax ; from below the ocelli white, with a silvery 

 pile ; the vertex with the pile sparser, not obscuring the colour, and bearing a few 

 longish hairs. Eyes curved, distinctly converging at the top, hardly so beneath ; the 

 ocelli forming a triangle, the hinder ones separated from each other by about the 

 same distance they are from the eyes. Clypeus gaping, the apex transverse. The 

 head is alutaceous ; the base of the mandibles finely rugose. Thorax alutaceous, more 

 or less white with the silvery pile. Prothorax shorter than the head, the sides rounded, 

 bluntly arcuate behind. Scutellum broad, not narrowed towards the apex, convex. 



