. Bulletin. Natural history; Natural history. HEBARD: DERMAPTERA AND ORTHOPTERA OF ILLINOIS 207 September 2, are from Meredosia, Grafton, Clay City, Centralia, Dubois, Herod, Prospect Hill, Williams Mountain, Elizabethtown, Metropolis. A. rotundifolia rotundifolia (Scudder).—Though Winnetka, Am- boy and Moline (Rehn and Hebard 1914) are known northern limits, all of Illinois is probably included in the distribution of this race. Fifteen males and 16 females, taken June 21 to October 6, are from Winnetka, Amboy, Riverside, Willow Springs, Palos Park, Moline, Havana, Hilliary, Muncie, St. Joseph
. Bulletin. Natural history; Natural history. HEBARD: DERMAPTERA AND ORTHOPTERA OF ILLINOIS 207 September 2, are from Meredosia, Grafton, Clay City, Centralia, Dubois, Herod, Prospect Hill, Williams Mountain, Elizabethtown, Metropolis. A. rotundifolia rotundifolia (Scudder).—Though Winnetka, Am- boy and Moline (Rehn and Hebard 1914) are known northern limits, all of Illinois is probably included in the distribution of this race. Fifteen males and 16 females, taken June 21 to October 6, are from Winnetka, Amboy, Riverside, Willow Springs, Palos Park, Moline, Havana, Hilliary, Muncie, St. Joseph, Urbana, Champaign, Seymour, Charleston, Odin, Dubois, Murphysboro, Fountain Bluff, Prospect Hill, Dixon ass» Fig. 158.—Adult male of the bush katydid Microcentrutn rhombijolium (Saussure). X Microcentrum Scudder KEY TO SFFXIES Pronotum with cephalic margin showing a distinct though weak angulate production mesad. Very large. Fastigium weakly sulcate. Stridulating area of male tegmina immaculate. Male cerci gently incurved, apex not thickened, armed with a minute tooth beside the immediate tip. Male styles smaller and shorter, separated by a broad concave interval. Ovipositor with apex of ventral valves transverse truncate rhombifolium, p. 207 Pronotum with cephalic margin evenly concave. Large. Fastigium distinctly sul- cate. Stridulating area of male tegmina with a large brown suffusion. Male cerci bisinuate, apex moderately enlarged, a minute but stout tooth directed sharply inward and inset so that the immediate apex appears bilobate. Male styles large and elongate, separated by a very small but decided emargination. Ovipositor with apex of ventral valves obliquely truncate. . .retinerve, p. 208 M. rhombifolium (Saussure).—Though in this latitude a northern known limit is Twin Grove, the species undoubtedly occurs throughout the state, as it is known from as far north as Lansing, Mich, and Winona, Minn. We believe however that rhombijolium is very sca
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Keywords: ., booka, bookcentury1900, bookdecade1910, booksubjectnaturalhistory
