JAMES A. G. REHN AND MORGAN HEBARD 339 



Michigan, 1 9, [M. C Z.]. 



Green River, Illinois, VIII, 20, 1 9, [M. C Z.]. 



Moline, Illinois, VIII, 4, 1 cf , [M. C. Z.]. 



Bee Spring, Kentucky, VI, 14 to 15, 1874, (F. G. Sanborn), 1 9 , [M. C. Z.]". 



Summit of Rich Mountain, Arkansas, 2600 feet, ^'III, 1, 1905, (Morse), 

 2 cT, [Morse Cln.]. 



Intermediate between A. r. rotundijolia and A. r. parvipennis. 



Winter Park, North Carolina, IX, 7, 1911, (R.; in wire grass in pine 

 woods), 1 9 . 



Sand Mountain, Georgia, VII, 8, 1903, (Morse), 1 9, [Morse Cln.]. 



Macon, Georgia, VII, 30 to 31, 1913, (R. & H.), 1 9 . 



Warm Springs, Georgia, 850 to 1200 feet elevation, VIII, 9 to 10, 1913, (R. ; 

 in pine and oak woods), 1 9 . 



Valley Head, Lookout Mountain, Alabama, VII, 11, 1905, (Morse), 1 9, 

 [Morse Cln.]. 



Chehaw Mountain, Alabama, 2600 feet, VII, 13, 1905, (Morse), 2 d^, 2 9, 

 [Morse Cln.]. 



. We have also examined and reported A. rolundifolia rolundifolia from 

 Jones' Knob, 6000 feet elevation, and Mt. Pisgah, 5740 feet elevation, North 

 Carolina. 



Amblycorypha rotundifolia parvipennis St&l (PI. xi, fig. 38; pi. xii, 

 figs. 47 and 56.) 

 1876. A[mblycorypha] parvipennis Still, Bihang till K. Svenska Vet.- 

 Akad. Handl., iv, no. 5, p. 58. [Texas.] 



The present form is clearly a derivative of the rolundifolia stock 

 inhabiting the southern prairie region, extending eastward and 

 intergrading with r. rotundifolia in the southeastern states, for 

 mformation regarding which see above under A. r. rotundifolia. 

 Intergradation with A. r. iselyi has l^een assumed on the rela- 

 tively mmor importance of the characters separating the two 

 forms, and more collecting in the proper regions will in all proba- 

 bility establish this affinity as clearly as om- present material dem- 

 onstrates that existing between A. r. roiundifoUa and A. r. parvi- 

 pennis. 



The heavier form, abbreviate wings and rol)ust pronotum, which 

 latter has the humeral sinus much reduced and the lateral lobes 

 broader dorsad, are the chief characters which separate A. r. 

 parvipermis and A. r. iselyi from J^. r. rotund if olio. In all the 

 specimens seen of typical parvipennis and iselyi the wings are never 

 evident when the tegmina are closed. 



The two related forms (i.e. r. parvipennis and r. iselyi) can be 

 best separated by the slenderer general form and more elongate 



TRANS. AM. ENT. SOC, XL. 



