180 HYMEN OPTEKA. 



by a distinctly greater distance than they are from each other ; an indistinct furrow 

 runs down from them. Clypeus with the sides obliquely truncated ; the apex trans- 

 verse. Pronotum very slightly narrowed from the apex to the base ; arcuate behind, 

 but not rounded in the middle. Median segment with a gradually rounded slope. 

 Abdomen shorter than the head and thorax united ; shining, compared to the thorax, 

 which is alutaceous ; the apex thickly haired. For alar neuration, see Tab. X. fig. 26. 



15. Salius guatemalensis. (Tab. x. fig. 27, head.) 



Niger, pruinosus ; alis hyalinis, antice late violaceis. $ . 

 Long. 13 millim. 



Hab. Guatemala, El Eeposo 800 feet (Champion). 



Eyes almost parallel, very slightly converging at the top, reaching near to the base 

 of the mandibles. Ocelli almost forming a triangle, the hinder ones separated from 

 the eyes by a little greater distance than they are from each other. Clypeus elongate, 

 obliquely narrowed towards the apex, which is subtransverse. Head narrow, a little 

 concave behind ; below the antennae densely covered with a silvery pile ; above the 

 antennae more sparsely pilose and bearing long pale hair, this being also the case 

 behind. Mandibles elongate, shining, the apex piceous. Thorax opaque, alutaceous. 

 Pronotum moderately elongate, fully as long as the head. Median segment with a 

 rather sharply rounded slope ; its central channel rather broad ; the base bearing a 

 silvery pubescence ; and there are two round spots of silvery pubescence at the apex. 

 Antennae as long as the head and thorax united ; pruinose. Abdomen with a distinct 

 petiole at the base ; shining, pruinose, the apical segment thickly clothed with blackish 

 hairs, these being rufous at the apex. Wings : second cubital cellule subquadrate, 

 considerably shorter than the third ; the first transverse cubital nervure sharply 

 oblique, the second straight ; the first recurrent nervure received in the apical third, 

 the second distinal before the middle. Legs elongate, pruinose ; the tibial spines 

 sharp, elongate ; the long spur of the hind tibiae not reaching to the apex of the 

 metatarsus ; the middle tooth of the claw short, sharp. 



J 16. Salius laevis. 



Priocnemis Icevis, Smith, New Sp. Hymen, p. 157 \ 



Hab. Costa Rica, Cache, Volcan de Irazu 6000 to 7000 feet 1 (Rogers). 



I ' 



v 17. SaHus centralis. (Tab. XI. fig. l, wing.) 



Niger, longe albo-pilosus, abdomine 10-maculato ; alis hyalinis, apice fumatis. $ . 

 Long. 16 millim. 



Hab. Panama, Volcan de Chiriqui 4000 to 6000 feet (Champion). 



Eyes almost parallel, a little converging at the top, reaching near to the base of the 



