. Manual of the families and genera of the North American Diptera [microform]. Diptera; Diptères. w 1L'(> NOirril AMKIMCAX DIl'TKUA,. ^ â -4 siiort, rarely elongated. Abdomen composed of four or ii\c segments; genitalia of the but little exjxjsed; the ovi- positor jointed, more or less prt)jecting. AVings rather large : auxiliary vein present, ending steeply and obsenndy in oi- near the border; ])Osterior basal eidl and the anal ctdl distinct, tlie latter often drawn out into an acute, often prolonged, point. Wings usually with dark markings. T^egs long; tibia' without
. Manual of the families and genera of the North American Diptera [microform]. Diptera; Diptères. w 1L'(> NOirril AMKIMCAX DIl'TKUA,. ^ â -4 siiort, rarely elongated. Abdomen composed of four or ii\c segments; genitalia of the but little exjxjsed; the ovi- positor jointed, more or less prt)jecting. AVings rather large : auxiliary vein present, ending steeply and obsenndy in oi- near the border; ])Osterior basal eidl and the anal ctdl distinct, tlie latter often drawn out into an acute, often prolonged, point. Wings usually with dark markings. T^egs long; tibia' without ])reapical bi-istle. I'roboscis moderately long, usuali}' with broad laUdla. sometiities long, and the n;ir- row labella folding backwards. This family comprises a hirg(! number of rather small flies usually with ])rettilv marked winressions; antennte short, two-jointed; mouth booklets separated, thick and strong; anal end somewhat im})ressed, often in the middle with six, sn^all. fleshy p'unts. l'u])aria (dliptical. the anterior stigmata projecting sonu'what button- like. The larva' ol' Cfratifi^ live in tlie flesh of oranges ami lemons, those of Ariiirt; have been found at the l»ase of the flower stems of riilomis. those of A<i'ers of 11 Icrni'}iiin. etc. those (d' Triijichi in tlie heads of ('!rshii/i. it()r (if t'ciiialt' rciiinrkiilily cloti^iatcii urnl curviMl; sccoinl Icmui- tudinal vein usuallv witli nil aiitiiinr luiiiicli. 'I'oxotkvi-ana (iri>l. ()vip()Mtnr tidi ri'iiiarkahly fl(iii|i!iti'il and curvi'd. .... 2 '2. KiMiiit nil cacli >iilf\viili a Inisllc liaviiiii a tcriiiiiial, leaf like ai)]U'lida;iV, ('M!ATrii> .Macli', Front witliiuil «.iicli liri^llcs. ........'â¢'<. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Williston, Samuel W. (Samuel Wendell), 1851-1918. N
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectdiptera, bookyear1896
