| OCR Text |
Show 92 REV. H. S. GORHAM AND MR. C. T. GAHAN ON [Feb. 2, bright metallic green-and in having a slight depression on the outer disk of each elytron a little below the base. There is no trace of a costa on the sides of the elytra. Possibly only a variety of the preceding. CHRYSOMELIN,E. 8. CHRYSOMELA OPULENTA, Reiche. Chrysomela opulenta, Reiche, Voy. Galin. Abyss, p. 405, t. 25. fig. 7. GALERUCINJE. 9. OIDES TYPOGRAPHICA, Ritsema. Gides typographica, Ritsema, Tijdschr. Ent. xviii. p. 21. One example. 10. CEROCHROA MACULICOLLIS, Baly. Cerochroa maculicollis, Baly. 11. HYPERACANTHA HYPOMEL^ENA, Thorns., var. In this variety, which occurs also at Old Calabar, the abdomen is entirely fulvous. In other respects it agrees with the typical form. (Specimens of this insect stand in Murray's collection as Diacantha beninensis, H. S. G.) 12. HYPERACANTHA FLAVONIGRA, Thorns., var. Elytra black, with a submedian transverse yellowish band, which does not reach the outer margins, and each with a small testaceous spot at the extreme apex. This variety is represented by a single female specimen, which I refer to H. flavonigra, Thorns., on account of the similarity in the contour of the last abdominal segments. The ventral segment is rather deeply incised on each side at the apex, while the median lobe thus cut off bears a shorter incision or notch placed a little to the right of the middle line. The dorsal segment is emarginate in the middle at the apex. 13. BONESIA SERRICORNIS, Thorns., var. Elytra black ; each with two testaceous patches-one behind the shoulder and extending inwards on to the disk, the other just behind the middle. In the typical forms of B. serricornis the elytra are black with a varying proportion at the apex testaceous. Mr. Jacoby has referred B. serricornis, Thorns. (Ootheca), to the genus jEthonea, Baly ; but I can find no sufficient difference by which to distinguish the latter from Bonesia, Baly. ' The one genus was founded upon a male, the other upon a female specimen, each belonging to a different species. The anterior cotyloid cavities are usually only very slightly open behind, and may in certain cases (some specimens of B. murrayi, Baly) be completely closed in. |
