428 Mr. W. L. Distant on Pentatomlna3. 



Araducta malayana^ sp. n. 



Ochraceons, tliicklj and darkly punctate, tlie punctures 

 darkest on the liead and on centre of anterior margin of pro- 

 noturn ; a central discal spot to pronotum, a central elongate 

 spot at base of scutellum, lineate fasciaj to corium on basal 

 half and whole length of marginal area, and a marginal streak 

 to clavus pale stramineous levigate. Membrane pale ochra- 

 ceous. Body beneath ochraceous ; sternum, trociianters, and 

 femora with large brown punctures ; abdomen thickly and 

 finely punctate, the central disk levigate. Antennse ochra- 

 ceous, second and third joints subequal in length. 



Long. 11 millim. ; exp. pronot. angl. 6 millim. 



Hah. Pulo Penang (Brit. Mus.). 



Size and form of A. repel/ens, Kirby, but with the pro- 

 notum punctate, but not rugulose ; levigate markings and 

 colour also distinct. 



I possess a specimen collected in Perak by Mr. Doherty 

 in which the levigate markings are much less pronounced. 



Genus Beaciiystethus. 



Brachystethus fulvicornis. 



Rhaphiynstei- fubicornis, Walk. Cat. Het. ii. p. 3G1. n. 38 (1867). 

 Brachystf'thun biyuttatus, "Walk. luc. cit. iii. p. 455 (1868). 

 Brachiistetlius parvus, Dist. Biol. Cent.-Am., Rliynch. vol. i., Suppl. 

 p. 342, pi. xxxi. f. 23 (1889). 



brachystethus discolor. 



Ochlerus discolor, Walk. Cat. Ilet. i. p. 194. n. 15 (1867). 

 Brachystethus maryinifer, Walk. loc. cit. iii. p. 456, n. 10 (1868). 



Genus Edessa. 



Edessa helix, 



Edessa helix, Ericlison, in Schornb. Reis. iii. p. 610 (1848). 

 Edessa costalis, Stal, Enum. Hemipt. ii. p. 50 (1872) ; Dist. Biol. Centr.- 

 Ara., Ehynch. vol. i. p. 87, pi. viii. f. 10 (1880). 



I have placed these species as synonyms on the authority 

 of a specimen received for the * Biologia ' collection from 

 Dr. Bergroth, identified by him as the Edessa helix, Erichs., 

 and localized as from Costa Rica. 



Edessa ohscura. 



Edessa ohscura, Dallas, List llem. i. p. 325. n. 13 (1851). 

 Edessa hmneralis, Walk. Cat. Het. iii. p. 441 (1868). 

 Edessa bimaadata, Walk. loc. cit. p. 442. 



Closely allied to E.jugata, Westw. 



