532 Mr. W. L. Distant on Lygeide. 
Astacops Fiebert. 
Astacops Fieber?, Stal, Ann. Soc. Ent. Fr, 1865, p. 187. 
Serinetha immunis, Walk. Cat. Het. iv. p. 148. n. 14 (1871). 
Astacops anticus. 
Serinetha antica, Walk. Cat. Het. iv. p. 147. n. 10 (1871). 
Astacops turbatus. 
Serinetha turbata, Walk, Cat. Het. iv. p. 148. n. 18 (1871). 
Astacops Walkert, n. nom. 
Astacops anticus, Walk. Cat. Het. v. p. 35. n. 9 (1872), nom. preeoce. 
Astacops thoracicus, sp. n. 
Ochraceous; pronotum, scutellum, apical angle of corium, 
sternum, and abdomen beneath black; apex of scutellum, 
central area of prosternum, and the abdominal segmental 
margins ochraceous; rostrum ochraceous, its apex broadly 
black. 
Long. 83 millim. 
Hab. New Guinea, Dory (Brit. Mus.). 
Allied to A. villicus, Stal, differing by the unicolorous 
pronotum &c., 
Astacops abdominalis, sp. n. 
Sanguineous ; abdomen above and beneath black; sternum 
ochraceous; membrane piceous, its apical area pale bronzy. 
Antenne sanguineous, the fourth joint ochraceous and about 
equal in length to second joint; rostrum with the basal joint 
sanguineous, remaining joints piceous; the margins of the 
meso- and metasternum more or less levigate; legs san- 
guineous. 
Long. 11 millim. 
Hab. Louisiade Archipelago; St. Aignan (Basel Thomson, 
Brit. Mus.). 
A distinctly marked species belonging to the group repre- 
sented by A. Fiebert, Stal. 
Astacops malayanus, sp. n. 
Stramineous; abdomen above and beneath black; pro- 
sternum stramineous; meso- and metasternum ochraceous, 
with their margins stramineous; antenne, legs, and posterior 
margin of corium reddish ochraceous; membrane fuscous ; 
rostrum, posterior lateral margin of corium, and base of 
