Ul 



SYNECHES, n. g. 



Antennis articuli breves ; 3us 2o multo latior vix longior ; seta capita 

 vix brevior articulis lo ad Sum triplo longior: alae costa incisa ; areola 

 undecim, duo marginalcs, una submarginalis, una apicalis, duo posteriores, 

 una inferior, tres basales, una discoidalis. 



Joints of the feelers short ; third joint nearly round, much broader but 

 hardly longer than the second joint ; bristle very slender, about thrice the 

 length of all the preceding joints, nearly as long as the head: chest gib- 

 bous : fore border of the wing slightly notched towards the brand : two 

 marginal areolets, one submarginal, one apical, two posterior, one inferior, 

 three basal, and one discoidal. 



Syneches simplex, Mas, Plate 5, fig. 7. 

 Fusca, thoraee vittis indistinctis fulvis ornato, ahdomine nigro, antennis 

 pedibusque fulvis, alis cinereisfusco flavoque variis. 



Body dark brown, clothed with black hairs : eyes red, meeting above ; 

 facets large : mouth and feelers tawny ; bristle of the feeler black : chest 

 adorned with tawny stripes which are" nearly confluent : abdomen linear, 

 rather flat, black, longer and much narrower than the chest ; tip dark 

 tawny, shining : legs tawny ; thighs and fore-shanks partly pitchy : wings 

 pale gray, brownish on the borders of the cross-veins and beneath the 

 brand, which is dark brown ; the wing is yellow on each side of the latter, 

 and there is a dark brown spot beyond it ; wing-ribs and veins brown ; 

 poisers large, lawny. Length of the body li line ; of the wings 3 lines. 



United States. 



Fam. BOMBYLIARII, Meigen. 



Genus ANTHRAX, Fabr. 



Is here divided into the following groups, of which several lesser sec- 

 tions may be formed. 



Group 1. ExopRosopA, Macquart. 



Four submarginal areolets. Feelers like fig. 4, PI. 17, Meig. 



Ex. — A. stymphalis, Phlegethon, Harpia, umbiifer, Orcus, Erebus, 

 Cerberus, Proserpina, rufescens, erythroccphala, dives, ferrea, Tantalus, 

 fiinesta, Sphinx, Lucifer, puipuraria, pulclira. 



