74 Orper—COLEOPTERA. Srection—PENTAMERA. 
joint is very slightly more than the length of the seventh, eighth, and ninth united ; the last joint is also equal in 
length to that of the seventh, eighth, and ninth united; the second and third joints are equal in length to the 
fourth and fifth; and the fourth, fifth, and sixth, are equal in length to the seventh, eighth, and ninth united. 
Species 2—ORTHOPTERUS LAFERTEI. 
(Westw. Proce. Linn. Soc. June 19, 1849, p. 55-) 
PLATE XV, Fre. 11. 
C. piceo-castaneus, nitidus, levis; pronoto magis fulvescenti-castaneo ; elytris nigro-castaneis, tenuissime 
punctatis; singulo pone medium plaga longitudinali suture proxima, ad apicem recurva et cum margine 
externo parallela, fulva; pronoto linea impressa media; disco haud setoso; pedibus rufo-castaneis. 
Long. corp. lin. 6. 
Habitat ; Africa Occidentalis Tropicalis, Rio Grande, inter Gambia et Sierra Leone. In Mus. D. Lafertei. 
The breadth of the club of the antennz is equal to two and one-third of its length ; the terminal joint is 
equal in length to the ninth, eighth, seventh, and one-third of the sixth joints. 
Sus-Gryus—PLEUROPTERUS. Westw. 
(Arcana Ent. ii. p. 9.) 
Species 1 (3)—PLEUROPTERUS ALTERNANS. 
(Westw. Proc. Linn. Soc. June 19, 1849, p. 56.) 
Pratt XVI, Fie. 2. 
Rufus, elytris magis fulvis, singulo plagis duabus latis nigris postice conjunctis; opacus fere levis: capite 
brevi, vertice antice longitudinaliter impresso punctisque duobus impressis inter partem oculorum posticam ; 
antennis fere planis, clava e basi ad apicem sensim angustata, articulo basali postice in lobum rotundatum pro- 
ducto; pronoto transverso, angulis anticis rotundatis, posticis valde incisis, inter angulos posticos tuberculis 
duobus rotundatis instructo; disco valde irregulari, suleo profundo longitudinali; elytrorum humeris elevatis, 
disco singuli 4-costato ; pedibus longis gracilibus. 
Long. corp. lin. 4. 
Habitat ; Mozambique et Port Natal. In Mus. Melly (e Mus. Reg. Berol. cum nomine supra indieato 
transmissus) et in Mus. D. Fortnum. 
The labrum is obconical, rounded at the tip, hiding the base of the mandibles, which are slender and sickle- 
shaped. The maxillary palpi are scarcely so large as the labial, the first and fourth joints being the shortest ; 
the fourth is pointed at the tip. The labium is large, porrected, and obcordate, the apical margin nearly 
straight ; the labial palpi are large, with the third joint elongate-ovate and setose (fig. 2a, the parts of the 
mouth in situ). The coxe of the intermediate legs are irregular in shape (fig. 2), and the base of the femora 
angulated below, the base of the posterior femora being rather produced and angulated (fig. 2c). 
Species 2 (4)—PLEUROPTERUS HASTATUS. MS. in Mus. Berol. 
(Westw. Proc. Linn. Soc. 19 June, 1849, p. 57.) 
Puate XVI, Fic. 3. 
Piceus, tenuissime punctatus, pubescens ; elytris subopacis; capite antice suleato; antennis magis quam in 
specie precedenti regularibus, et supra nonnihil concavis; articulo basali clave extus in tuberculum obtusum 
intus sinuatum producto; articulis reliquis longitudine fere equalibus, ultimo rotundato; pronoto breviter 
cordato-trunctato ; angulis anticis valde obtusis, posticis valde incisis; utrinque intus angulos posticos tuberculo 
elevato instructo ; elytris obscure piceis basi costatis; singulo macula prope basin, altera pone medium cum 
macula suturali connexa, margineque postico fulvis; pedibus gracilibus. 
C. (P.) Westermanni affinis at latior, magis pubescens, antennis et prothorace aliter formatis. 
Long. corp. lin. 5. 
Habitat ; Mozambique. In Mus. D. Melly (e Mus. Reg. Berol. cum nomine supra indicato transmissus.) 
