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Show 284 REV. H. S. GORHAM ON THE [M COPTOCYCLA THAIS. Coptocycla thais, Bohem. Cass. Suppl. iv. p. 463 ; Baly, I. c. p. 214 ; Kraatz. I.e. p. 271. Hab. Northern China; Japan, many localities. Readily known by the pale ruga? on the summit of the elytra forming an x. Kraatz speaks of it as "very like C. biramosa";- I only see that it is like it in wanting a humeral dark ramus, it is much smaller, and all the dark markings are more nearly black. In one specimen the posterior ramus, which is usually so distinct on the margin of the elytra, is quite wanting. Mr. Lewis found this species commonly. COPTOCYCLA SPARSA. C. thaidi affinis, sed minor, magis oblonga, sordide testacea, prothorace vitta mediana antice abbreviata, elytrorumque disco irrorato, fuscis, hoc ramulum postice emittente, parum nitidulis corpore cum coxis nigro; capite, antennis pedibusque fiavis, abdominis apice utrinque pallido. Long. 5-5^ millim. Japan, Nikko and Sannohe on main island, and at Sapporo in Yezo (G. Lewis). Head yellow, sometimes obscurely so, antennae clear yellow; their apex faintly clouded; termirjal joint not more infuscate than those preceding it. Thorax bone-yellow, rather transparent, hence the head shows through, causing the appearance of a vitta, which does not attain the front margin; hind angles round, base straighter than in C. thais; disk thickly punctured and but little shining. Elytra longer than, and not nearly so convex as, in C. thais, punctured in striae, but with rugae here and there uniting two or more interstices, but the pale rugae forming so conspicuous an X in C. thais are here wanting, and the whole insect is duller. The posterior ramus, though reaching the margin, is not very distinct from above, because the margin is little expanded, and the dark markings of the disk here widen outwards, as also they do in front, though there is no front ramus; underneath this posterior spot is quite clear black and the apex of the suture has a black spot. This species is, with the exception of C. spilota, the smallest yet detected in Japan. It is about the size of C. hebraica. C. crucifera appears to be of the same size, but the description does not accord with that of this species, and it appears to be a much more glabrous and smooth species. In C. sparsa the expanded margin of the elytra is covered with deep punctures, which are confluent and interspersed with rugae, especially near the edge of their raised disk. A series of about a dozen were secured by Mr. Lewis. COPTOCYCLA SIGILLATA. Rotundata, breviter ovata, nitidissima, corpore subtus nigro-piceo, capite, antennis, pedibus, abdominis apice, maculisque nonnullis lateralibus testaceis ; prothorace diaphano, disco convexo, glabro, |