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Show 106 INSECTA. d lenticular, and their tibire . hi hs very large an have the postertor t g . d at its extremity, t d . 1 potnte . arcua e · . id or comca' ly sahent or ex- Here the abdomen ts. ovo. . straight and rare d the ovtposttor 1S and pediculate ; t nded ales are fiabelli· ternal. Th e w ings . are ex e · f the m 1 . h the antennre 0 Some are k nown m w uc form. CHIROOERA, Lat. ( 1) . le in both sexes. f the others are stmp Those o Lin r -Vespa, Sphex, . CHALOIS, prope . d' le elongated '• such are thos,e found h bdominal pe 1C b Fabricius. 'I hey are Some have t de c:lled sispes and clavipes fir~t are yellow; those of in marshes, an 'or thighs of the b th b1 a c k • The postert o d are fulvous. -has formed the new genus theM s ecDona lman-Anal. En tom., ·Pe·s o29f th 't s d1'vision ' that is rem. arka· • · th an African spec1 11 as the mandibles, 1s pro- DrRRHINUS, Wl b'fid head which, as we ~ its deeply 1 ' ble or ·iorl . here the antennre suddenly longed ante• :Cies enclosed in a~be~, ~ t d club and where the Two other sp ' oid and trtartlcu a e ' h' to form a . · a large ov b d seem to 1m terrnm.ate ~n salient and as long as the o y, See his Memoir on the oviposttor ts hich he calls PALMON. ticular genus, w 24 ~:~:<:~::~~::~ :~:;.:i~~ :r t~L~ ab~e~;:!~:: •:::~e flS~~~:~ c. . . espa rmnuta, · mmuta, v ith yellow legs. umbelliferous plants; black, 1 ~ the nests of the Vespa nidulam C. annulata, Fab. Foun~ m b Reaumur-Insect., VI, 0 f S. outh Amen·c a, a nd rntstake1n fY t hat Wasp. 1t t·s bl ac k·' . ~ r the ferna e •0 't of X 2 and xxt, 3, 4- o h'te dot at the extremt y x ' ' 1 ted. a w t ) point of the abdomen~ ~nga h'; picked in with white(2. the posterior thighs; ttbt<£ w 'f1 e, lied to the posterior extre· There, the ab d omen seems a.s 1s esaspiple · it is rounde d or ve ry ob- 'ty of the metathorax, or as tf n' The ovipositor curves rtnu1s e at the en d ' an d compressed latera Y· G . Crust et Insect., lV' 26. . Encyc. ( 1) Chaki& pecticornis, Lat., enet. . 25. Fab ., Syst. Piez.l Ol•V·' (2) Se e L at ., Gen · C. rust. et Insect., IV, p. ' Method., article Chalcu. IIYMENOPTEUA. 107 over the back. The wings are doubled, and the superior ones present a radial cell. LEuoosPrs, Fab. L. dorsigera, Fab., the female; L. dispar, the male; Panz., Faun. Insect. Germ., LVIII, l.S, the male. BLack; abdomen almost twice the length of the thorax, with three yellow bands and two little spots of the same colour. The female deposits her eggs in the nest of the .!lbeillea Maponnes of Reaumur. That of another species-L. gigas-lays in Wasp's nests( 1 ). The others, in several of which the antennre consist of but from five to nine joints, have the posterior thighs oblong, anrl their tibire straight. Of those in which the antennre, always simple in both sexes, are composed of from nine to twelve joints, we will first distinguish EuoHARrs, Lat. Fab.-Ghalcia, Jur. The only ones of this tribe in which those organs are straight or non-geniculate. The abdomen is pediculated. I could find no vestiges of palpi in several individuals submitted to my inspection(2). 'ruoRAOANTA, Lat. 1,hese Insects, collected in Brazil by M. de Saint-Hilaire, by the prolongation of their scutellum, which covers the wings, repres~nt in Europe those Hemiptera called Scutellera by M. Delamarck. The other subgenera with antennre still consisting of at least nine simple joints, but which are geniculate; and in which the wings are not covered by the scutelJum, may be divided into those where these antennre are inserted near the middle of the anterior face of the head, or considerably distant fr·om the mouth, and into those where they are inserted close to it. In those where they are removed from it, some have almost au ovoidal abdomen, compressed on the sides, or higher than it is wide, and a usually salient and ascending ovipositor. Such are those which form the (I) See the same works and the Monograph of this genus by Kli.ig, in the sMpee~c.1e sN. at. Cur. of Berlin. Swammerdam appears to have known one of these (2) Lat., Gener. Crust. et Insect., IV, 20. |