NO. 1124. JlKriSIOX OF THE MELAXOPLISCUDDEB. 359 



the inner face twice barred with black, which sometimes shows feebly 

 above, and appears again on the outer face, but diffused, subconflueut, 

 and crossed by the pallid angnlate incisures; inferior face red; genicu- 

 lar arc black on both sides; hind tibiae red, with a subbasal, narrow, 

 fuscous annulus, the spines black to their base, twelve in number in the 

 outer series. Extremity of the male abdomen roundly clavate and 

 upturned, the supraanal plate triangular and tolerably flat, but with a 

 deep basal median sulcus reaching more than half way to the tip with 

 pretty high and sharp bounding ridges, fading apically; furcula wholly 

 wanting; cerci stout, heavy, and incurved, narrowing considerably 

 toward the middle, then very rapidly expanding and furcate, the upper 

 lobe longer than the lower and more equal, well rounded apically, 

 directed sharply upward, the lower triangular, bluntly pointed, and 

 turned but little downward, the apical margin of the whole deeply and 

 angularly excised, scarcely surpassing the supraanal plate; infracercal 

 plates just longer than the supraanal plate; subgenital plate moder- 

 ately narrow, the apex a little and angularly elevated, scarcely pro- 

 longed, entire. 



Length of body, male, 31.5 mm., female, 39 mm.; antennae, male, 16 

 mm., female, 17.5 mm.; tegmina, male, 19.5 mm., female, 23 mm.; hind 

 femora, male, 18.5 mm., female, 22.5 mm. 



One male, 1 female. Jacksonville, Duval County, Florida, Pridday, 

 (L. Bruner). 



27. BIYITTATUS SERIES. 



This group is nearly related to the robustus series ; the male prozona 

 is more or less distinctly longitudinal, and the interspace between the 

 mesosternal lobes of the same sex nearly or more than twice as long as 

 broad; the eyes are rather widely separated, and the frontal costa 

 broad and equal. The prosternal spine is rather long and generally 

 slightly retrorse. The tegmina are fully developed, at least as long as 

 the hind femora, without spots or, rarely, very feebly marraorate, but 

 sometimes with a light stripe dividing the dorsal and lateral faces and 

 extending across the pronotum. The hind femora are longitudinally 

 striped on the outer face or unmarked, the hind tibiae usually red, 

 rarely purplish, with ten to thirteen spines in the outer series. 



The supraanal plate is much as in the robustus series; the furcula is 

 present as small but coarse lobes, and the cerci are much as in the 

 robustus series, but less extravagantly developed; the subgenital plate 

 is longer than broad, generally moderately narrow, somewhat elevated 

 and sometimes thickened apically, hardly prolonged, and always entire. 



It comprises insects of a large or a very large size, with heavy bodies 

 and poor in flight. Five species are known, and among them they cover 

 our entire territory, from Atlantic to Pacific and from Central Mexico 

 to the Saskatchewan and Hudson Bay. It comprises two of our com- 

 monest species. 



