INSECUTOR INSCITI/Ti MENSTRUUS 25 



yellow as blue, the tibiae of the hind legs are golden yellow all 

 round on their distal two thirds, except the tip, which is black, 

 more extensively on one side; the yellow coloration cannot be 

 overlooked and we consider for this reason grandiosus distinct 

 from rutila. 



Megarhinus longipes Theobald. 



One single female, labeled : "Mexico, one of Walker's series 

 unnamed." A careful examination shows that on one side a 

 mid leg is stuck to the specimen in the position of a front leg 

 of the same side. The legs show much yellow as in grandiosus 

 Williston. The hind tibiae are just the same. The first hind 

 tarsal joint is more yellowish still than in grandiosus. The 

 mid legs, which were absent in the grandiosus specimen, have 

 the tibiae and first tarsal joint nearly completely yellow, except 

 the tip of the tibia. 



The front legs which are darker than the others, show white 

 on the tip of the first, all of the second, third and fourth joint, 

 fifth joint dark on one side, white with a few dark scales on 

 the other side as in grandiosus. The mid legs with tip of first, 

 all of second and third joint white, rest missing. This is also 

 like grandiosus where, according to the description, the mid 

 legs were like the front legs. The hind legs of longipes were 

 broken ofif after the first joint ; according to the description 

 the tip of the third joint was white, the last two joints were 

 lost already. Then there was no difiference with grandiosus 

 in the hind legs. 



We also can not find differences in the ornamentation of 

 the head or body and make longipes Theobald a synonym of 

 grandiosus Williston, 1900. 



Genus MANSONIA Blanchard 



Mansonia pseudotitillans Theobald. 



This species is certainly different from titillans Walker. We 

 also have several specimens from Surinam. 



Mansonia amazonensis Theobald. 



This has the front part of the mesonotum solidly covered 



