14 Major Parry’s Catalogue 
Oponrotasis Wotrastonu, Parry. (PI. II. figs. 2 & 3, 3, 2; 
P]. III. fig. 1, var. max.) 
O. niger; capite margine antico fortiter emarginato, fronte 
depresso pone oculos exciso, spino acuto armato; mandibulis 
(var. minor) capite brevioribus, intus fortiter et irregulariter 
dentatis ; prothorace angusto, lateribus fere parallelis, pone 
medium spina magna acuta armatis, angulis posticis acutis; 
elytris aurantiacis, limbo externo tenuissime nigro-marginato, 
plaga magna triangulari nigra literam V formante a basi fere ad 
apicem descendente ; tibiis anticis extus trispinosis, quatuor 
posticis inermibus. 
Long. corp. (mandib. incl.) une. 2. 
Hab. Malacca. Coll. de Castelnau, Mniszech et Parry. 
Another rare species from the Malay peninsula, recently dis- 
covered by Count de Castelnau, allied to O.Ludekingz, but 
abundantly distinct ; the head is smaller and less coarsely punc- 
tured, whilst the body, of a deeper orange colour, is marked by a 
large black plaga, extending from the base to near the apex ; 
whereas in O, Ludekingii there exists only a broad sutural black line. 
I have dedicated it to my friend T. V. Wollaston, Esq., the well- 
known author of ‘“ Insecta Maderensia.” 
Oponrotazsis Mounoti 4, Parry (var. med., @ ignota). 
(PI. T. fig. 1.) 
O. niger, nitidus; capite magno antice emarginato, angulis 
anticis rotundatis, lateribus pone oculos spino acuto instructis; 
mandibulis brevibus, intus irregulariter et fortiter dentatis ; 
prothorace transverso, angulis anticis rotundatis, posticis 
acutis, lateribus pone medium spina acuta armatis; elytris 
leevissimis, aurantiacis, basi prope scutellum suturaque anguste 
nigris; tibiis anticis 5-spinosis, quatuor posticis inermibus. 
Long. corp. unc. 2; mandib. lin. 6. 
Hab. Cambodia, Siam. Specimen unicum in Coll. Castelnau. 
This species is dedicated to the memory of the late M. Mouhot, 
to whom we are indebted for many new and rare species from the 
same locality: whilst attempting to explore the unhealthy districts 
of Cochin China he fell a victim to the climate. 
Opvontoranis CasteLnaunr ¢, Parry (¢ ignota). (PI. I. fig. 2.) 
O. giganteus, niger, glaberrimus; mandibulis capite parum 
longioribus, valde exsertis, interne ad basin dente magno 
obtuso armatis, et ante basin apicem versus plurimis denticulis 
