_Male._ Blue. Head brightly gilded, vertex and hind part silvery, underside with white hairs; mystax with four long black bristles, and with several gilded bristles; third joint of the antennae elongate-fusiform; sides of the thorax varied with green and purple; abdomen with spots of silvery tomentum along each side, underside and pectus silvery; wings grey, black towards the tips and along half the length of the hind border; halteres white. Length of the body 7 lines; of the wings 13 lines. The veins of this species are hardly different from those of _L. consobrina_ in structure, excepting the third externo-medial, which is united to the fourth nearer the border. 30. LAPHRIA COMES, n. s. _Mas et Foem._ Viridi-cyanea, capite aurato, antennarum articulo tertio fusiformi, pectore ventrisque lateribus argenteis, abdomine viridi (mas) aut purpureo-cyaneo (foem.) maculis lateralibus argenteis, alis nigricantibus basi cinereis. _Male and Female._ Greenish blue. Head brightly gilded, hind part silvery; mystax with six long black bristles; third joint of the antennae elongate-fusiform; pectus with silvery tomentum; abdomen green in the male, purplish-blue in the female, with silvery spots along each side, underside with two silvery stripes; wings blackish, grey at the base and along the costa for more than one-third of the length, veins and halteres black. Length of the body 6--6-1/2 lines; of the wings 11-12 lines. This may be only a small variety of _L. consobrina_; but the wings are not darker towards the costa as in that species, and the first branch-vein is much more straight. 31. LAPHRIA CONSORS, n. s. _Mas et Foem._ Viridis (mas) aut cyanea (foem.), capite aurato, antennarum articulo tertio brevifusiformi, pectore argenteo, abdomine aeneo-viridi (mas) aut cyaneo-purpureo (foem.) maculis lateralibus argenteis, alis nigricantibus, basi cinereis. _Male and Female._ Green (male) or blue (female). Head gilded, hind part silvery; mystax with a few black bristles; third joint of the antennae short-fusiform; pectus silvery; abdomen aeneous-green in the male, bluish-purple in the female, with silvery spots along each side; wings blackish, grey at the base and along the costa for more than one-third of the length; veins and halteres black. Length of the body 4-1/2--5 lines; of the wings 8-9 lines. The straight and not oblique third externo-medial vein distinguishes this species from all the preceding _Laphriae_. 32. LAPHRIA GERMANA, n. s. _Foem._ Cyanea, facie aurata, antennarum articulo tertio longissime subfusiformi, abdominis maculis lateralibus pectoreque argenteis, alis cinereis, basi subcinereis, halteribus albis.