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Show INSECTA • . 23~ f h latter se...,. has four fa. lse ff eet, . . a button. The larva o t e h osterior extremtty o the tng tn h d and the rest at t e p two near the ea ' . . . body ( 1 ) • ompose d o f a t least thtrteen J·O lDtds Sometimes the antennre, always c t granose, are merely furmshe • both sexes, and ~o r the mostd p. art he males on 1y , w ith a bundle of xn t most an m with short setre, or a ' T:im,les gallicolea. ' hairs at base. Tll ey form our r CEBAToPoGoN, Me. lg.-Ceratopogon, Culicotdes, Lat. · ly furm. s h e d with a bundle of hairs at Where the antennre are slmp basTe~ ~ 11 'ng subgenera, resembles a ir proboscis, as in. the two_ o :"~ent. The larvre live in ve-pointeed rostrum. The wmgs are mcu g~table galls(2)· 1 PsYOHODA, Lat. Meig. . tuft or bund le o f hairs on the antennre; wings tecti- Wtthout any . erous nervures. form and furnished wtth num . one species of this subgenus, has The front of the thorax, 1D t be formed by the lateral endages which appear to us o two appt'tt'es of its first segment(3). . , ' extrem ' r ••• • ' CEoiDOMYIA, Meig. . hose of the Psycbodre, are granose.and Where the antennre, hke t . '11 t d hairs but where the wmgs d 'th short vert1c1 a e ' (A) s·t mp ly furnishe W. thl e Qod y ' and pre sen t but three nervures .. • are incumbent on ' , ( 1) The same, an d the Monograph of M. Fallen. (2) Lat and Meig., Ibid. (3) Lat..,, and Me.i g., I b'd '1 d 0 t. 1817. 1 • also the Jour. Ac. Nat. Sc. of Phi a ., ~llU di· (4) Meig., Dip~, I, 93. Sde:e la France-places his new gen~uT: quite 110 M Macquart-Dlpt. du nor are hairy, curved forwa , no . the re~tly after Cecidomyia. The a~enr":fteeo globular joints, pedlc~~·~,. ltd. Ion as the body, and compose o and the first joint of the tarsi IS e ongave mJ.o. The !ego are long and ~~·~··~d ligqred in the above jou~nal, IP'f ,.:! The Cecidomyia deatructor, describe a as the antennae seem to •ndicate. to this new su genus, p:Mroabcarbolpye zbze aloren agl so c1 o se 1y . allied to these Uiptera. DIPTERA. 233 Other species, still of the same division with those in which the antennre are slender and manifestly longer than the head, are also desti· tute of ocelli; but the eyes are entire, and oval or round. The wings, distant in several, always present membranous nervures united transversely, at least in part, and closed, discoidal cells. The anterior extremity of the head is narrowed and prolonged in the manner of a rostrum, and frequently exhibits a pointed projection underneath. The palpi are usually long. The extremity of the tibire is spinous. Several of the larvre live in mould, decomposed trees, &c. and have no distinct thorax nor false feet, but present two more apparent openings for respiration at the superior extremity of the body. The nymphs are naked, with two respiratory tubes near the head; the margin of the abdominal annuli is spinous. This subdivision comprises the largest species of Tipulre, those called couturieres, tailleura, &c., or our Tipulaires terricolea. In several the wings are always extended, the antennre of the males are usually bearded, pectinated or serrated; the palpi are composed of five joints, the last of which, extremely long, seems to consist of several smaJler ones, or to be knotted. Such are the following subgenera. CTENOPHORA, Meig. Where the antennre are filiform, pectinated in the males, granose or serrated in the females. C. pectinicornia; Tipula pectinicornia, Fab. 'Ilhe abdomen fulvous, with black spots on the back, and yellow strealts· on the sides; wings marked with a black spot( 1 ). PEDiou, Lat. Where they are almost setaceous and simple, with the two first joints largest and elongated, the three following ones turbinated, the next three globular, and the seven last slender and almost cylindrica1( 2). · (1) Lat., Gen. Crust. et Insect., IV, 254; Meig., Dipt., I, 155. (2) Lat., Ibid. Meigen improperly unites them with the Limnobia:. See Eneye . .M~thod., article Pedicie. VoL. IV.-2 E |
