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^. 



8. Chrysomela opulenta, Reiche. 



Clirysomela onulenta, Reiche, Voy. Gralin. Abyss, p. 405, t. 25, 



fig. ;. 



Galerucin^. 



9. OiDES TYPOGRAPHiCA, Ritsema. 



Oides typograpMca, Ritsema, Tijdschr. Ent. xviii. p. 21. 

 One example. 



10. Cerochroa maculicollis, Baly. 

 CerocJiroa maculicollis, Baly. 



11. Hyperacantha hypomel^na, 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 

 Biacaniha 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. fiavonigra, Thoms., 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 oiF 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, Thoms. (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. 



