248 HYMENOPTERA. 



i. Body marked with yellow. (Species 1-14.) 

 a. Legs reddish or yellow. (Species 1-4.) 



l. Myzine agilis. ^C..,.,,,c- (^^'y^-l-^^^ ' 



Myzine agilis, Smithy Descr. of New Species of Hymen, p. 182 ($ <3)\ 

 Hab. NlCAKAGUA 1 . 



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This species may be known from all I have described or enumerated, except 

 M. fulviceps, M. pulchriceps, and M. sexcincta, by having the legs ferruginous ; but it 

 differs from M.fulviceps in having the head black, with yellow markings. 



2. Myzine fulviceps. (Tab. XII. fig. 20.) 



Nigra, capite fulvo, nigro- et fiavo-maculato, tibiis tarsisque ferrugineis, abdomine flavo-balteato ; alis flavo- 



hyalinis. $ . 

 Long. 20 millim. 



Hab. Mexico, Acapulco, Tierra Colorada, and Chilpancingo in Guerrero (H. H. 

 Smith) ; Guatemala, San Geronimo (Champion). 



Head yellow, more or less tinged with ferruginous on the vertex, densely covered 

 with pale fulvous hair ; a large black mark on the vertex, strongly punctured ; the 

 ocelli in pits ; the clypeus bluntly carinate ; the mandibles ferruginous, black at the 

 apex, and at the base bearing long fulvous hair. Antennae with the first and second 

 joints yellow ; the scape covered with long pale hair ; the flagellum dull ferruginous, 

 covered with a pale microscopic pile, the third joint shorter than the fourth. The 

 thorax has the pleurae and breast black ; the pronotum has the apical half yellow, the 

 basal half black ; the mesonotum is black, yellow 7 in the centre and along the tegulae ; 

 the scutellum and postscutellum are yellow ; the median segment is black, the sides, a 

 wedge-shaped mark at the base in the middle, and a small mark in the centre at the 

 apex yellow. The yellow part of the pronotum is thickly covered with long fulvous 

 hair ; the hair on the mesonotum is much sparser ; the median segment without hair, 

 but covered with a white down ; the mesopleurse and breast are covered with long white 

 hair, the former having a large yellow mark. The apical half of the pronotum is 

 densely punctured, the black basal part depressed towards the head ; its base rather 

 strongly punctured, the apex impunctate. The base of the mesonotum is finely and 

 closely punctured ; the sides smooth and with a few large punctures ; the central part 

 with some large punctures, the spaces between them being finely and closely punctured ; 

 the scutellum coarsely punctured ; the postscutellum with a few large punctures ; the 

 median segment impunctate, in the middle with a few transverse striations, its apex 

 oblique. The propleurae are finely and closely striated ; the metapleuree are obliquely 

 striated, with the striations more widely apart than they are on the propleurse ; the 

 mesopleurae coarsely punctured. Legs : the coxae, the trochanters, and the base of the 



