[2141] Linn. Trans. v. t. xii. f. 15.

[2142] Daldorf (Asiatic Society's Trans. vii.) has divided Geotrupes into two families, one with the podex covered (G. vernalis, &c.) which he calls modesti, the other with it uncovered (G. stercorarius, &c.) which he calls obscæni.

[2143] Plate [VIII.] E´.

[2144] [Ibid.] D´.

[2145] Sur le Vol des Ins. c. i. Addend. 299.

[2146] In Dytiscus marginalis the upper side of the margin of the Hypochondria is curiously cut into transverse corrugations.

[2147] Plate [VIII.] Fig. 6. C´.

[2148] [Ibid.] B´´.

[2149] Plate [VIII.] L´.

[2150] Linn. Trans. xi. t. ix. f. 15. b.