JOURNAL 



JOffo JBorlli €lntoraoIogirflI Horipfg, 



ToL. XVII. MARCH, 1909. No. 1. 



NEW GENERA AND SPECIES OF TROPICAL 

 MYRMELEONID^. 



By Nathan Banks, 

 East Falls Church, Va. 



Dimares pretiosa, new species. 



Head blackish, lower margin of labriim yellow ; vertex mostly pale, with three 

 dark spots each side ; palpi black ; antennae black ; pronotum pale, with a large 

 blackish spot on posterior part with three extensions forward to front margin ; thorax 

 dull black, a pair of submedian pale spots on meso- and metanotum, and the hind 

 border of meso- and metascutellum pale ; legs pale, femur faintly striped above near 

 tip, and tips of tarsal joints darker ; abdomen brown to black, unmarked. Wings 

 hyaline, with many large brown spots ; fore wings with some small basal spots, an 

 oblique band of larger spots before middle, one beyond middle and before stigma of 

 three large spots, one at stigma, ending in two smaller spots on the hind border ; the 

 costal spot of this last band connects to the three connected apical spots. Hind 

 wings with two or three small spots along radius in basal part ; a large spot in disk 

 before middle ; an oblique band of three spots at middle, another band beyond middle 

 ending in two spots on the hind margin; the costal spot of this last band connects to 

 the apical trifid spot, which, like that of the fore wing, leaves two hyaline spots, one 

 before and one behind the tip of wing. Expanse 64 mm. 



MoUendo, Peru, Dec. 



The described species of Dimares may be separated by the follow- 

 ing table : 



1. No spots on the wings ; thorax pale in the middle, with a narrow median black 



stripe albidilinea Walk. 



Spots on the wings. 2. 



2. Thorax pale in middle, with a narrow median black stripe ; spots of wings nearly 



all separated and none forming bands across wings elegmis Perty. 



Thorax mostly dark above ; spots forming more or less distinct bands, at least in 

 the hind wings 3- 



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