1884.] 17 



? . Antennae brownish, variable, 3rd and 4th joints grey at the base, 3rd joint 

 clavate, the thickened part clothed with short black hairs. Long. 21—22 mm., ? . 



Gaboon. 



Melanopolia convexa, n. sp. 

 Similar in colours to M.farinosa, but differing in the much greater convexity 

 of the elytra, especially behind, where they are rather steeply declivous ; the thorax 

 is also convex, instead of concave on the disc, and is there tri-tuberculate ; the 

 lateral tubercle is equally strong and pointed. The streaks and spots of tomentum 

 are rather whiter, but similarly placed, viz. : the frontal belt is continued along the 

 cheek and flank of thorax to the sides of the breast ; and the vittse on the vertex 

 behind the eyes continue along the thorax from the fore to the hind margin, but 

 they do not converge to or join on the latter : the scutellum is black, and the groy 

 speckled tomentum on the elytra is condensed only near the shoulder. Lastly, tlm 

 apices of the elytra are not in the least truncated, but rounded. The legs are blacky 

 ringed with grey. Long. 20 mm., ^ . 



Gaboon. 



NOSEROCERA, n. g. 



Differs from Monohmnmus by the form of the head (though it is 

 not retractile below), and particularly the large volume of the lower 

 lobe of the eyes, also by the tuberculose disc of the thorax, in which 

 characters it resembles the Phrynetides. Palpi robust, terminal joints 

 sub-ovate, apex truncated. Antennae ( ? ?) rather longer than the 

 body, scape as in Monohammus, cicatrice narrow, but sharply limited 

 by a complete rim ; 3 — 5 joints broad, compressed, with their apices 

 sub-nodose, sparsely ciliated. Elytra moderately narrowed behind, apex 

 rounded, surface sub-depressed. Middle tibise grooved and slightly 

 tubercled near the middle of their outer edge. Processes of the pro- 

 and meso-sterua simple. 



An interesting genus, apparently connecting the Monohamnimce 

 j with Lacordaire's Group, Phrynetides ; the species described below 

 somewhat resembles Homelix unicolor (Quedenfeldt), belonging to 

 the latter Group. 



NOSEROCEEA TUBEROSA, 71. Sp. 



Elongate, surface rather depressed, cinnamon-brown, clothed with extremely 

 fine laid pubescence ; scutellum yellow, coarsely tomentose ; thorax impunctate, disc 

 with five large, slightly elevated tubercles, lateral spine strong, elongated, median : 

 elytra with the basal half subseriate punctulate, apical half smooth. 



Long. 21 mm. 

 Mt. Cameroons. 



MONOHAMMUS PICTOR. 

 Dark velvety-brown, finely tomentose, crown and thorax with three fine longi- 

 M tudinal lines tawny-ochreous, elytra tawny-ochreous, the basal margin near the 

 shoulders^ a large semi-oval marginal spot in the middle, and a similar much smaller 



B 



