516 Mr. W. L. Distant on Homoptera 
Leptocentrus altifrons. 
Centrotus altifrons, Walk., List. Hom., 11, p. 608 (1851). 
Centrotus Bos, Sign., in Thoms., Arch. ent., 11, p. 336 (1858). 
Leptocentrus Bos, Stal, Hem. Afr., iv, p. 90 (1866). 
Rabduchus gnomon, Buckt., Monogr. Membrac., p. 251, 
PI. lvii, figs. 4, a, b, (1903). 
This species, which was found at Lagos by Mr. Lamborn, 
has had its nomenclature unduly complicated. Stal, 
at the time of writing his ““ Hemiptera Africana,” ignored 
all the work of Walker, even to placing his species 
as synonyms of other species described subsequently 
(supra). Buckton has redescribed both genus and species. 
His types are now before me. The one figured by him 
(not this type) has the pronotal posterior process a little 
raised. 
See also pp. 494~7. 
Anchon decoratum, sp. n. 
Head and pronotum black; pronotum with a central longitudinal 
castaneous carinate line and with a cretaceous sericeous line on each 
side behind and before the base of each lateral process, posterior 
pronotal process dark castaneous, sometimes black; scutellum 
more or less greyishly sericeous; tegmina black, sometimes very 
dark castaneous, a small pale spot near apex of clavus, and a large 
transverse subapical ochraceous spot extending about half across 
the apical area from costal margin; body beneath piceous, lateral 
margins of sternum greyishly sericeous; legs ochraceous or pale 
castaneous; pronotal lateral processes recurved and divergent, 
their apical areas moderately flattened and broadened a little but 
distinctly inwardly ampliate before apex which is acute, the posterior 
process is obliquely raised at base and there apically furnished with 
a short outwardly directed spine, then sinuately and obliquely 
directed to apex and to a little before tegminal apex. 
Long. 5to 54mm. Exp. pronot. proc. 44 to 5mm. 
Hab. Oni, near Lagos; forest (W. A. Lamborn—Oxford 
and Brit. Muss.). 
See also p. 498. 
Anchon relatum, sp. n. 
Closely allied to and resembling the preceding species A. decoratum, 
Dist., but differing in the following characters. The pronotal 
apices are considerably more acute and the apical areas are not 
