. Carnegie Institution of Washington publication. EPILACHNA. 75 TRIBE EPILACHNINI. Genus EPILACHNA Chevrolat. Epilachna borealis Fabricius. Distribution: Eastern United States. Type: Spots 1, 2, 3 + suture, 4, 5, 6 + suture, 7 (fig. 84, b). Form spots 1, 2, 3 + suture, 4, 5 + 6 + suture, 7 (fig. 84, d); 6 in 156 = 4 per cent of females and 27 in 214 == 13 per cent of males at Cold Spring Harbor, New York. Form spots 1, 2, 3 + suture, 4, 5, 6, 7; 3 per cent at Cold Spring Harbor (fig. 84, a). Form spots 1, 2 + 3 + suture, 4, 5, 6 -f suture, 7; 2 in 370 == 1— per cent at Cold Spring Harbor. Form
. Carnegie Institution of Washington publication. EPILACHNA. 75 TRIBE EPILACHNINI. Genus EPILACHNA Chevrolat. Epilachna borealis Fabricius. Distribution: Eastern United States. Type: Spots 1, 2, 3 + suture, 4, 5, 6 + suture, 7 (fig. 84, b). Form spots 1, 2, 3 + suture, 4, 5 + 6 + suture, 7 (fig. 84, d); 6 in 156 = 4 per cent of females and 27 in 214 == 13 per cent of males at Cold Spring Harbor, New York. Form spots 1, 2, 3 + suture, 4, 5, 6, 7; 3 per cent at Cold Spring Harbor (fig. 84, a). Form spots 1, 2 + 3 + suture, 4, 5, 6 -f suture, 7; 2 in 370 == 1— per cent at Cold Spring Harbor. Form spots 1, 2 -f- 3 + suture, 4, 5 -f 6 + suture, 7; 1— per cent at Cold Spring Harbor. Form spots 1 + 2 + 3 + suture, 4, 5, 6 + suture, 7; 1— per cent at Cold Spring Harbor (fig. 84, e). Form spots 1, 2, 3 -f suture, 4, 7 + 5 -f-6 + suture; 1— per cent at Cold Spring Harbor fig. 84, fir). Form spots 1, 2, 3-f suture, 4, 6 + suture, 6 + 7; 1—per cent at Cold Spring Harbor (fig. 84,/).. Fro;. 84,—Variation of the elytra! pattern of E. horenlix. /< —mode; a to a, from Cold Spring Harbor, N. Y. a / FIG. 85.—Variation in the pronotal pattern of E. borealis. c=mode. <t to /, from Cold Spring Harbor, New York. Although not a color variation, 1 specimen with an emarginate pronotum cephalad seems worthy of mention here. It did not appear in any way pathological or traumatic. Intergrades are so numerous and the inherit- ance of these forms is so imperfect that they do not deserve varietal rank. No geographical differences are known in the range, except that it has given way to its derivative, E. toiveri, in Texas and vicinity. The pro- notum shows a wide range of variation in the amount of pigment (fig. 85), which the modification and heredity experiments given later show to be largely the result of modification. There is, however, one distinct variety. Var. A. Lacks lateral pronotal spots; 1— per cent at Cold Spring Harbor (fig. 85, a).. Please note that these ima
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