genera and species of Malacoderm Coleoptera. 397 

 The following is a list of the species : — 



Lycid^:. Plateros purpurivestis, n. s. 

 Lycostomus modestus, Kiesenw. ,, nothus, Kiesenw. 



Macrolycus pectinifer, Kiesenw. ,, lineatus, n. s. 



Mesolycus (n. g.), puniceus, n. s. Pristolycus (n. g.), sagulatus. n. s. 

 Metriorhynchus geometricus, Kiesenw. 

 ^'oi erythropterus, n. s. Lampyeid^;. 



,, oculatus, n. s. Lucidina (n. g.), accensa, n. s. 



,, spinicoxis, Kiesenw. „ biplagiata, Mots. 



„ velatus, n.s. Lucidota? discicollis, Kiesenw. 

 Platycis nasutus, Kiesenw. ,, fumosa, n. s. 



Conderis orientis, n. s. Luciola picticollis, Kiesenw. 

 ,, pictus, n. s. ,, vitticollis, Kiesenw. 



Lyponia quadricollis, Kiesenw. ,, parvula, Kiesenw. 



„ delicatulus, Kiesenw. ,, gorhami, Bits. 



Plateros cor acinus, Kiesenw. 



LYCIDtE, 



Lycostomus modestus. 



Lycus modestus, Kiesenw., Berl. Ent. Zeits., 1874, 

 p. 250, nee Lycostomus modestus, C. Waterh., 111. 

 of Typ. Col. B. M., 1879, p. 11, pi. 2, f. 10, 



Nagasaki and Kashiwagi. 



Not very close to any described species ; there is 

 affinity to such species as L. debilis, Waterh., but the 

 dull brown elytra, with greyish-black thorax, amply dis- 

 tinguish it. 



Mr. Lewis met with the sexes in union in June. The 

 males are the larger specimens, with longer and slightly 

 more serrate antennae. 



Macrolycus pectinifer. (PI. XVII. , figs. 1, 2). 

 Celetes pectinifer, Kiesenw., Berl. Ent. Zeits., 1874, 



p. 251. 

 Cerceros pectinicornis, Kraatz,Deuts. Ent. Zeits., 1879, 

 p. 127, pi. ii., f. 2 ; Bourg., Bull. Soc. Ent. Fr., 

 (6), i., p. xlvi. 

 Lygistopterus flabellata, Mots., Schrenck, Beis., 1860, 



p. 114, pi. 7, f. 29. ? 

 Niger, elytris purpureis, sericeo-velutinis tenuiter 

 quadricostatis, costa tertia obsoleta ; prothorace antice 

 carinato, postice carina perbrevi, medio fossulato. Long. 

 $ 9 — 13 mm., ? 9 — 20 mm. 



Mas. Antennis articulis 3 — 10 longe flabellatis, seg- 

 mento ventrali ultimo longe lanceolato, medio latiusculo. 

 Foem. Antennis serratis, segmento ventrali triangulari, 

 apice exciso, subbimucronato. 



Nikko and Fukushima ; Nara ; Junsai. 



