RHYNCHOTA. 
539 
a. Head pectinated at margin Cydnus (Fab.). 
h. Head not pectinated. 
* Lateral margins of pronotuin recurved and concealed below 
lateral angles Macroscytus (Fieb.). 
t Lateral margins of pronotum visible throughout. 
Geotomus, g. n. 
2. Scutellum not more than half as long as the abdomen. 
{Brachypeltates . ) 
Genus Brachypelta (A. & S.). 
IT. Femora smootli or unarmed near their posterior edge j prostornum to 
coxa) longer than liead ; niesostornum smooth. 
A. Metasternum without a longitudinal lamina separating the coxae ; 
mesosternum more or less keeled SEiimAiRES. 
1. Eyes half immersed in the sides of the head, suborbicular from 
above. 
a. Antepectus granulated on its sides .... Sehirus (A. & S.). 
b. Antepectus punctate, but less granular. Canthophorus, g. n. 
2. Eyes in a transverse obtuse cone, at least two-thirds beyond sides 
of head Gnathoconus (Fieb.). 
B. Metasternum with a furrowed longitudinal lamina between the 
coxae ; mesosternum with a deep rostral furrow. 
OCHETOSTETHAIRES. 
Genus Ochetostethus (Fieb.). 
The genus Cydnus (= Cydnus^ A. & S.) is divided by Mulsant & Bey into 
various subgenera: By rsimts (Fieh.), sp. C. fossor (M. & R. p. 308) = B. 
scarabceoides (Fieb. nec Fab.) ; Psammozetus (M. & B.), sp. C. albipennis 
{QoBi^^jJlavicornis (Fab.), and fuscipcs (sp. n.) ; Trichosternus (M. B.), sp. 
C. pilosus (H.-Sch.) and niyrita (Fab.) j Tominotus (M. & B.), sp. C. siynoreti 
(sp.n.). 
Sehirus is’ limited by Mulsant & Bey to C. morio (Linn.) = n^;ws (H.-Sch., 
Fieb,), C. ovatus (H.-Sch.), and S. luctuosxis (M. & B.)=morfo (Fab., Fieb.). 
Canthophorus (M. & B.) is really a new name for Amyot and Serville’s 
genus Tritomegas, as all the species referred to it have joint 2 of the antennae 
shorter than 3. It is divided by them into the subgenera : — Tritomegas 
(A.&S.), sp. C. sexmaculatus (Bamb.)and bicolor (Linn.) j Crocistethus (Fieb.), 
sp. C, waltli (Fieb.); Canthophorus (Jsi. & B.), sp. C. dubius (Scop.) and 
maculipes (M. & B.) ; and Adomerus f M. & B.), sp. C. biguttatus (Linn.). The 
latter does not appear in the table of subgenera. 
Mayr (Beise der Novara, Zool. ii. Hemipt. pp. 6-8) discusses the characters 
of the known genera of this group. 
Dismegistus binotatus (WQQtw.)=Ci7nex sanguineus (DqQ.). St51, Hem. 
Afr. iv. p. 252. 
Geotomus, g. n., Mills. & Bey, 1. c. p. 324 (see table, above). Sp. Cydnus 
punctulatus (Costa) and C. elongatus (H.-Sch.). 
New species : — 
Macroscytus javanus, Mayr, 1. c. p. 8 (Verh. &c. 1. c. p. 361), Batavia. 
Cydnus ceylo7iicus, Mayr, 1. c. p. 9 (Verh. &c. /. c. p. 362), Ceylon and Java. 
Cydnus fuscipes, Muls. & Bey, Pun. de France, Ann. Soc. Linn. Lyon, xiii. 
p. 312, Montpellier ; C. signoi'eti, Muls. & Bey, 1. c. p. 319, Montpellier ; C. 
fossor, Muls. & Bey, 1. c. p. 308 (= Byrsinus scarabceoides^ Fieb.). 
