| OCR Text |
Show 650 REV. H. S. GORHAM ON T H E [Dec. 20 Endomychus. It is not, however, of itself a generic character. Somewhat similar organs exist in one species of Encymon (see Notes from Genoa Mus. vol. ii. 1885, p. 519) and in certain genera of Languriides. C Y A N A U G E S , Gorham. To this genus the North-American Endomychus biguttalus of Say and Mycetina limbata, Horn, belong. The latter is the insect alluded to by me (End. Rec. p. 64) as Endomychus quadripunctatus, Illiger, and is the E. quadrinotatus of Dejean's Catalogue, p. 464. It is wrongly given in Gemm. and Harold's Cat. as a synonym of E. biguttatus, from which it is specifically distinct. It occurs, according to Horn, in the State of California; I have seen it from Nevada (Morrison). I am not inclined to lay much stress upon the generic difference between these species and Endomychus. If we except the two North-American species mentioned, the other Asiatic speci-s are very differently coloured, and are narrower and more conv. x. Perhaps after all some one may discover better points of distinction than those I have given for Cyanuuges. 1. CYANAUGES GORHAMI, Lewis, Ent. Mo. Mag. xi. 1874, p. 55. (Plate LIII. fig. 5.) Hab. M A I N ISLAND: Kashiwagi, Nikko, and Fukui. Y E Z O : Jursai and Sapporo. Described from a unique example from Kawatchi. Mr. Lewis informs me this insect was found commonly in 1881, in the mountains, on a species of Agaricus allied to A. airocaruleus, in Kiushiu and on the Main Island, in June. In April only the remains of former generations were to be found. 2. CYANAUGES PLAGIATUS, n. sp. (Plate LIII. fig. 6.) Niger, nitidus; elytris singulisplagia lata nee marginem nee suturam attingente, abdomineque (segmento basali excepto) castaneis. Long. 5 millim. Hub. K I U S H I U : Yuyama and Hitoyoshi. Var. Plagia interrupta, maculas duas aurantiacas formante. Hab. K I U S H I U : Higo. The average specimens are a little larger than C. gorhami, but the general f rm and punctuation is similar. Head and thorax shining black, the latter a good deal narrower than the elytra at its base, the sides narrow to the front angles, which are prominent and subacute. The elytra are oblong-ovate, distinctly punctured. Most of the examples have the margin narrowly, the suture widely for half its length, more narrowly behind, and the apex widely black, thus leaving a wide discoidal plagia yellow. Occasionally, as in examples from Hi o, this is divided by the ground-colour of the elytra leaving only two yellow spots, oue humeral occupying the callus, the other a little past the middle, ill-defined, yellow. The breast and whole of the basal segment of the abdomen black, the remainder of the abdomen chestnut-yellow. Manv examples were |
