Guide to the study of insects and a treatise on those injurious and beneficial to crops, for the use of colleges, farm-schools, and agriculturists . lpi areof equal length. The spe-cies are large, some ofthem being among the lar-gest of Ilymenoptera, and ^^^ ^°**are generally indigo-blue in color. Pepsis hews Dahlbom isfound in Cuba; it is two inches long. P. cycmea Linn., which is blackish-blue, withblue abdomen and Avings,the latter reddish at theapex, has been described byBeauvois from the UnitedStates, while P. eJegans also occurs in theSouthern States. P. formosa Say affordsanoth
Guide to the study of insects and a treatise on those injurious and beneficial to crops, for the use of colleges, farm-schools, and agriculturists . lpi areof equal length. The spe-cies are large, some ofthem being among the lar-gest of Ilymenoptera, and ^^^ ^°**are generally indigo-blue in color. Pepsis hews Dahlbom isfound in Cuba; it is two inches long. P. cycmea Linn., which is blackish-blue, withblue abdomen and Avings,the latter reddish at theapex, has been described byBeauvois from the UnitedStates, while P. eJegans also occurs in theSouthern States. P. formosa Say affordsanother example of a speciesFig. IOC. common to both sides of the Rocky Mountains, as it has been found both in Texas and Cal-ifornia. It is black, with bluish or greenish reflections, withbright fiery red wings, and is thirteen to eighteen lines long. ScoLiADJE Leach. This family forms a group very easilydistinguished from the Bemhecidce or Chrysididce, as wellas the Pompilidce, by the broad front,the small indented eyes,and the great sexual differences in the antenniie, those of themale beino- long and slowly thickened towards the tip, while in. 176 H YMENOPTE R A. the female they are short, thick, and elbowed on the secondjoint. The clypeus is large, irregularly quadrilateral, becom-ing shorter in the lower genera, and the labrum is small,scarcely exserted, while the mandibles are, in the female es-pecially, large and broad. The prothorax is very square infront. In the fore-wings are three subcostal spaces. Theabdomen in the typical genus (Scolia) is broad and flat, longerthan the rest of the body. The abdomen of Mutilla approachesthat of the Chrysiclidce in having the second ring much en-larged over the others. The males usually have the analstylets very prominent, while the sting of the female is verypowerful. The body and legs are generall} very hirsute, andthe first tarsal joint is as long as the tibise. The genus Sajjyga is easily recognized by its smooth slenderbody, being
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Keywords: ., bookcentury1800, bookdecade1880, bookpublishe, booksubjectinsects
