RHYNCHOTA. 541 
Mormydea [sic] basicornis, sp. n., Motschulsky, Bull. §oc. Nat. Mosc. xxxix. 
1. p. 187, Japan. 
Sangarius, g. n., St§,l, Hem. Afr. i. p. 219. Allied to Duadicus ; belly and 
all the sterna sulcate j head longer, than thorax, bucculse scarcely elevated ; 
rostrum long; antennte 4-join ted, second joint very long. Sp. S. paradoxus^ 
sp. n., StSl, Berl. ent. Zeits. 1866, p. 157, from Western Australia. 
PancBtius, g. n., Stll, Hem. Afr. i. p. 220. Allied to Duadicus ; head ob- 
tuse, lateral margins deeply sinuate, lateral lobes contiguous in front ; ante- 
rior angles of thorax lobate. Sp. P. lohulatus, sp. n., Stal, Berl. ent. Zeits. 
1866, p. 167, from North Australia. 
Oncocorisj g. n., Mayr, Beise der Novara, Zool. ii. Hem. p. 44 (Verh. &c. 
l. c. p. 362). Allied to Ilalyomorpha (Mayr); eyes very prominent ; head 
elongate, middle lobe as long as lateral ; antennae long, basal joint passing 
apex of head ; bucculoe not reaching base of head ; joint 2 of rostrum longest; 
abdomen not furrowed, segments 2 and 3 with a narrow longitudinal im- 
pression on each side ; tibiae broadly sulcate externally. Sp. O. punctatus^ 
sp. n., Mayr, 1. e. p. 46, tab. 1. fig. 6, Sydney. 
Copeocoris, g. n., Mayr, 1. c. p. 66 (Verh. &c. 1. c. p. 363). Allied to 
Dico'ceus (Dali.) ; lateral lobes of head contiguous but separately acu- 
minated; lateral processes of pronotum very large, truncated. Sp. C. 
ahscissus, sp. n.,^Mayr, l.c. p. 67, tab. 1. fig. 10, Brazil. 
Edessides. 
Mayr (Beise der Novara, Zool. ii. Hem. p. 68) remarks on the characters 
presented by the metasternal keel in various species of Brachystethus, and 
proposes the formation of a subgenus for the reception of P. quinquedcntatus 
(Spin.), which he thus characterizes : — Bothrocoris. Scutelli anguli antici 
foveola profunda ; metasterni carina antice subacuta, baud emarginata ; ostioli 
odorifici sulcus abhreviatus.’’' 
Placocoris virtdis (Mayr) is figured by Mayr, 1. c. tab. 2. fig. 13. 
Plisthenes, g. n., Stal, Hem. Afr. i. p. 224. Allied to Oncomeris ; ocelli 
much further from each other than from the eyes, on the line between the 
bases of the latter. Type Tessaratoma dilatata (Montr.). B. e. Z. 1866, 
p. 167. 
Axona, g. n., StSl, 1. c. p. 224. Allied to Lyramorpha ; head elongate ; 
basal joint of antonna3 not passing apex of head ; scutellum rounded at apex. 
Typo Bhaphig aster longiiudinalis (Hope). B. e. Z. 1866, p. 167. 
VirbiuSj g. n., Stal, 1. c. p. 226. Allied to Pycanum ; posterior tibias slightly 
curved, shorter than the femora, which are somewhat incrassate. Sp. 
Pycanum imperiale (Dohrn) and P. angulatum (StM). B. e. Z. 1866, 
p. 168. 
SUPERICORNIA. 
Stal (Hem. Afr. ii. p. 1) divides his Coreida into the follow- 
ing two subfamilies : — 
1. Coreida. Segmentis dorsalibus abdominis quarto et quin to 
basi medio sinuatis. 
2. Rhopalida. Segmento dorsali abdominis quarto basi et 
apice vel apice saltern medio sinuato. 
The latter includes only the two genera Serinetha and Corizus. 
