14 Rey. H. Clark on the Dytiscidee 
Aspidomorpha amabilis, Boh. Mon. Cass. ii. p. 315. 
Siam. 
Aspidomorpha mutilata, Boh. Mon. Cass. ii. p. 316. 
Cambodia. 
Laccoptera vigintinotata, Boh. Mon. Cass. iii. p. 66. 
Siam; Cambodia. 
Laccoptera novemdecimnotata, Bug. Boh. Mon. Cass. iii. p. 67. 
Siam ; Cambodia. 
Laccoptera hospita, Boh. Mon. Cass. iii. p. 70. 
Cambodia. 
Laccoptera tredecmpunctata, Fabr. Boh. Mon. Cass. ii. p. 73. 
Siam. 
Coptocycla plausibilis, Boh. Mon. Cass. Suppl. p. 395. 
Siam ; Cambodia. 
Coptocycla scalaris, Fabr. Boh. Mon. Cass. iii. p. 124. 
Cambodia. 
Coptocycla punctaria, Fabr. Boh, Mon. Cass. iii. p. 254. 
Cambodia ; Siam. 
Coptocycla circumdata, Herbst. Boh. Mon. Cass. ili. p. 279. 
Cambodia. 
Coptocycla eribrosa, Boh. Mon. Cass. iii. p. 404. 
Siam. 
IIl.—Cataloque of the Dytiscidse and Gyrinide of Australasia, 
with Descriptions of new Species. By the Rev. Hamier Crarx, 
M.A., F.L.S. 
{Continued from vol. i. p. 421.] 
Tribe III. Hyproporip®. 
Genus 3. Cetina, Aub. Icon. vy. p. 219. : 
THE insects composing this genus may be separated from all others of 
the Hydroporide by the presence of a scutellum; in form they are 
more parallel and more elongate. Five species are already known— 
four from South America, and one, C. grossula, Lec., from Louisiana, 
the description of which will shortly be published. I am able, by 
the aid of Mr. Bakewell’s collection, to add a sixth species, found in 
Australia. 
C. australis, n. sp. 
C. elongato-ovalis, parallela, postice subacuminata, subtiliter punctato- 
striata, rufo-picea ; capite sat rotundato, leviter acuducto et minutis- 
sime punctato ; thorace lateribus leviter rotundatis, tenuiter marginatis, 
