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Show 554 INS~CTA. Sometimes the antennre are short, pectinated, ot· serrated from the fourth or fifth joint. Here the exterior margin of the elytra is straight, or is but slightly emarginated; the posterior angles of the th-orax are rounded and not arched, and the anterior ones are not bent underneath. The body is always in the fot·m of a short cylinder; the antennre are always free, and the eyes entire or but slightly «.>marginated. The males frequently have the head broader, the mandibles stronger and more salient, and the anterior legs longer. CLYTHRA, Leach, Fab.-Melolontha, Geoff. C. quadri]Junctata; Chrysomela quadripunctata, L., Oliv., Col. VI, 96, i, 1. From fout' to five lines in length; black; elytra red, each mat· ked with two black dots, the anterior of which is the largest. The larva inhabits a coriaceous tube that it drags about with it, and which with the animal was sent to me by M. Waudoner, from Nantes(l). There, the elytra, strongly dilated exteriorly at their origin and then suddenly narrowed, present a deep emargination. The poste· rio:- angles of the thorax are acute, arched and form a roof; the an· terior are strongly curved underneath. The antennre are laid along its inferior sides, or are lodged under its erlges. The eyes are evi· dently emarginated in sever~l. The superior surface of the body in those, and they are the greatest number, where it is less short and convex, is usually very uneven. These Chrysomelinre are exclusively proper to the western con· tinent. CnLAMYS, Knoch. Where the form of the body approaches that of a short cylinder or of a cube, with the thorax abruptly elevated, and as if hump-backed in the middle, and the middle of its posterior margin prolonged or unilobate. The body is in general extremely scabrous. In some the labial palpi are forked(2). ( 1) See Olivier and Fabricius, but abstract from the genus of the latter those species which belong to the following one. (2) See Olivier, but more especially the excellent Monograph of M. Kollar, and that of Kltig. See also Knoch, New. Beytr. Insect., p. 122, and La.t., Gener. Crust. et Insect., lll, p. 53. COLEOPTERA. 555 LAMPROSOMA, Kirb. Where the body is almost globular' extreme} Y convex, very smooth and the thorax .v ery shor.t ,~ very broad ' gradu a 11 Y rat·s ec1 and sh. ghtly' lobate ·a t· the mf iCldle of Its posterior margin · Th e fi ve 1a st and ser-rated JOints o the antennre are less dilated th · h . ( 1) an ,m t e precedmg ones • Som.e times the. antennre, ev. idently longer th an th e h ead and tho-rax u,m ted, .a re simple. and fihform ' or thickest a t th e en d , or even termmated m . a. club, m which case they are se r r a t e d , b ut on 1y f rom the seventh JOint. . . The body, in several , I's ovot' d an d narrowed bef~re. The last JOmt of the antennre is appendiculated, so that thetr number seems to amount to twelve. Here, the body is cylindrical, and the thorax as wide as the abdomen throughout. CRYPTOOEPHALus, Geoff. Wher·e the.·antennre and pal pi are the same thickness everywhere. C. sertceus; Cltrysomela aericea L. • OII'v Col VI 96 · • . . ' ' ., • ' ' ' t, 5. 1 ~ree hnes m length, and of a golden-green; antennre black, wtth a green base. Very common on the semiflosculos<£(2). CHoRAGus, Kirb. Where the antennre are terminated by three thicker joints forming a club, anrl the palpi are attenuated at the extremity(3). There, the body is narrowed anteriorly and is almost ovoid. The five last joints of the antennre are frequently larger, more or less compressed, and more or less dilated and serrated. The maxillary palpi are thicker at their extremity or almost terminated b an ovoid club, formed either by the last joint or by that and th~ precec1 .t ng one. ' EuRYOPE, Dalm. Where the mandibles are very stt·ong, and where the second joint of the antennre is manifestly longer than the thir·d(4). (1) Lamprosoma bicolor, Kirb., Lin. Trans., XII, xxii, 15. See especially the Insect. Spec. Nov. Germ., p. 574, 575. (2) For the other species, see Olivier, Fabricius, and Schrenberr. (3) Choragus Sclteppardi, Kirb., Lin. Trans., XII, xxii, 14. (4) Dalm., Bphem. Entom., I, p. 17. The E rubra, Lat., Gener. Crust. et Insect., l, ii, 6, is from Senegal and Abyssinia. |