SALIUS. 183 



ii. The claws with two teeth ; the first recurrent nervure received in the second 

 transverse cubital nervure. (Mygnimia.) 



y 21. Salius mexicanus. (Tab. XI. fig. 3, wing.) 



Mygnimia mexicana, Cresson, Trans. Am. Ent. Soc. i. p. 143 x ; Proc. Bost. Soc. Nat. Hist. xii. 

 p. 379 2 . ' 



Hob. Mexico, Amula in Guerrero 6000 feet, Cuernavaca in Morelos (E. H. Smith), 

 Vera Cruz (Sartorius 12 ), Atoyac (Schumann), Orizaba (Sumichrast 2 ) ; Guatemala, 

 Purula in Vera Paz, Zapote (Champion) ; Panama, Volcan de Chiriqui 4000 to 6000 

 feet (Champion). 



A species very variable in size (13-32 millim.). The antennae sometimes have the 

 tips blackish ; and the relative lengths of the second and third cubital cells vary. 



n/ 22. Salius rogersi. (Tab. XI. fig. 4, 6 organ.) 

 Long. 30-32 millim. 



Hah. Costa Rica, Volcan de Irazu 6000 to 7000 feet (Rogers). 



Similar in coloration to S. mexicanus, having the body deep velvety-black ; the 

 antennas fulvous, black at the base ; and the wings bright ferruginous, violaceous at 

 the base and apex. Longer ; the labrum and clypeus roundly incised at the apex ; 

 the body much more thickly covered with long black hair ; the hinder ocelli separated 

 from the eyes by almost double the distance they are from each other (in S. mexicanus 

 by about the same distance) ; the median segment more strongly transversely striated 

 and more distinctly channelled down the centre ; the pygidium not so thickly nor so 

 strongly haired. 



The male is similarly coloured; but it has the base of the wings more largely 

 violaceous, the body more thickly haired, and the antennae stout, the joints not dilated. 

 The male of S. mexicanus is described as having the " face, clypeus, antennae, except 

 at the base above, and posterior margin of the prothorax and anterior legs, except at 

 the base, yellow." 



In the female the apical two joints of the antennae are black. As in & mexicanus, 

 there is a subhyaline space with a macula in its centre at the base of the discoidal 

 cellule. 



V 23. Salius dolichocerus. (Tab. XI. figg. 5, wing ; 5 a, s organ.) 

 Long. 23-27 millim. 



Hab. Guatemala, Paso Antonio (Champion) ; Panama, Volcan de Chiriqui 4000 feet 

 (Champion). 



This also has the S. mexicanus type of coloration, except that the five apical joints 



