Diptera
an order of two-winged insects, of which the common house-fly and blue-bottle are familiar examples.
They are characterized by a body with slight coriaceous coverings, a open beneath, and containing a sucker composed of two, four, or six lancet-shaped elongated scales, two palpi, antennæ almost always composed of three joints, large eyes, an abdomen of four to seven distinct segments, tarsi with five joints, and two short clubbed appendages called halteres, or balancers, which seem to be the rudiments of the posterior pair in four-winged insects, and are kept in continual motion. All undergo complete metamorphosis, and all are oviparous except the Sarcophaga, which issue from their mother in shape of larvæ; and the Pupipara, which first make their appearance as nymphs.
Brown & Dawson A BIRD'S-EYE VIEW OF DELHI, CAPITAL OF INDIA, LOOKING FROM THE TOP OF THE MOSQUE Enc. Vol. 3-p. 372 E. M. Newman A VIEW IN THE "STREET CALLED STRAIGHT," DAMASCUS E. M. Newman A MERCHANTS' BAZAAR IN THE FAMOUS CITY OF DAMASCUS Underwood & Underwood DIAMOND MINING AT KIMBERLEY, SOUTH AFRICA Colonial Press Service SKELETON OF A DINOSAUR FOUND BY SCIENTISTS OF THE ROYAL ONTARIO MUSEUM Colonial Press Service THE RED DEER VALLEY, ALBERTA, WHERE SCIENTISTS ARE UNEARTHING SKELETONS OF THE DINOSAUR Photo, International Film Service UNITED STATES TRANSPORT "MT. VERNON" IN DRY DOCK International Film Service A FLOATING DOCK, WITH A VESSEL UNDERGOING REPAIRS International Film Service THE BATTLESHIP "VIRGINIA" ENTERING THE GREAT DRY DOCK AT SOUTH BOSTON, MASS. DIPTERACEÆ DISCIPLES OF CHRIST DIPTERACEÆ, or DIPTEROCAR- thy sight.) John Milton's poem, entitled PEÆ, an important order of Asiatic exogenous polypetalous trees, allied to the mallows (malvacex). The different species produce a number of resinous, oily, and other substances; one, a sort of camphor; another, a fragrant resin used in temples; and others, varnishes; while some of the commonest produce pitches, and sal, valuable timber..
DIPTYCH (dip'tik), originally signified the same as diploma, something folded; the double tablets of metal, ivory, etc., used by the Greeks and Romans.
Diptychs became important in the Christian Church, in them being written the names of Popes, and other distinguished persons, who had deserved well of the Church, to be mentioned in the Church prayers. Diptychs also often contained pictures of Biblical scenes.