| OCR Text |
Show 212 INSECTA • . of the upa. They do not change Their skin becomes the cocoon . pble of moving or bending · id and mcapa their form, but become rig le with the trunk, and thus '1' f quently at an ang f h their body; the tal lS re The upa only occupies one o t e ex-they float upon the water. P f t I sect issues from it through . nd the per ec n . . tremities of 1ts cocoon, a d 'ng and remams on 1ts ex- • • ff, t din its secon r1 ' . a fissure wh1ch 1s e ec e fi nd ,its development 1s com-uvire, where its body becomes rm, a pletcd. . . F ance is the . . . A common species m r I ect II Muse. v. SIX hnes m l Fab • Rres., ns . ' S. chamce eon, ., . f th scutellum yellow, and armed length; blac.k; extremity :on-~oloured spots on each side of with two spmes; three le the superior part of the abdomen( l ). 0DoN'l'OMYIA, Meig. e hardl longer than the head, with the Where the antenna: ar y 1 in length; the third forms a . . h rt and almost equa . . two first Jomts s 0 d le'n der cone compo sed of at least five . d1stmct highly elongate 's 1 mpressed and curved mwards,. . 1 t nical abrupt Y co . . . h rmgs, the as ' co t m' ity f h t'let otherw1se s1m1lar to t e represents the ex re 0 t e s 1 , others(2). EPHIPPIUM, Lat,-Clitellaria, Meig. hardly longer than the head, and the Where also the antenna: hareh' d forms a shorter and thicker cone, two first joints short, butt el t 1r ted abruptly attenuated at the £ h · g conica trunca , . with the ourt rm . b' t'l t of two- joints, the last of wh1ch extremity, and termmated y as 1 e d 1 t d slightly arcuate · is much the onges an h' 'um Fab' Schrefl'., Monog., E. vulgaris; Stratiomys ep 'fP"' d, ith ~spine on each side Deep b1 ack. thorax satm-re w ) a1n7d53 t.w o on the scu't ellum. 0 n the trunks of old Oaks(3 .. OXYOERA, Meig. The Oxycerre resemble the Ephippia m. the shortness of their t ·n Meigen and Macquart. (1) For the other species, see ~a rehl' e, 'th the preceding one. (2) Idem. M. Meigen now umtes t ts genus Wl (3) See the authot's just quoted. DIPTERA. 273 t· . antennre which are also provided with a stilet; but the third joint is shorter, and not abruptly narrowed at the end; if we look at the profile of the antennre we observe that the stilet, longer and more slender than in the preceding subgenus, anu approximating more to the form of a seta, is not terminal but inserted on the back near the summit. 0. hypoleon; Strat. hypoleon, Fab,; Panz., Faun. Insect. Germ., I, 14. Variegated with black and yellow; scutellum yellow, and with two spines( 1 ). There, the proboscis is long, slender, siphoniform, geniculate at base, and lodged in the inferior cavity of a rostrum-like projection of the anterior part of the head, bearing the antenna:, of which the form and proportions are similar to those of the Ephippia. NEMOTELus, Geoff. Fab.(2) In the others, the fourth joint of the antennre, together with the third, forms an ovoid or globular club terminated by a long seta. The scutellum is rarely spinous. CHRYsooHLoRA, Lat.-Sargus, Fab. Where the third joint of the antennre is conical and terminated by the seta( 3). SARGus, Fab. Where the same joint is almost ovoid, or nearly globular~ rounded or obtuse at the summit, with the seta inserted on the back, near the junction of the fou1·th( 4) ring with the preceding one; the first joint is almost cylindrical. The scutellum is rarely spinous. The body is f1·equently elongated, green or cupreous, and brilliant. S. cuprariua; Musca cupraria, L., Reaum., Insect., IV, xxii, 7, s, De Gecr, Insect., VI, xii, 14. Golden-green; abdomen (1) Idem. (2) Idem. {3) Sargus amethyatinus, Fn.b. (4) The &rgi, whatever Meigen may say to the contraJ:y, have the third joint divided into four rings. VoL. IV.-2 K . ,'-.. |
