130 [June, THAUMATOXEURA I NO PIN ATA, A NEW GENUS AND SPECIES OF CALOPTERYQINM. BY ROBERT McLACHLAM, F.R.S., &c. At the recent sale of the collections formed by the late Mr. Reginald Chohnondeley, of Condover Hall, Shrewsbury, I obtained the few Odonafa, solely on account of a large Calopterygine, which was evidently something unknown, but the remarkable nature of which 1 did not fully realize until after it came into my possession. The former owner of the collection valued insects, and other natural productions, solely for their beauty or forms, and cared little for names, and nothing for localities, so I am unable to say whence this specimen came ; but as the pin (or rather skewer!) was similar to those used for some other insects in the same collection which were Chinese or Japanese in origin, 1 hazard a conjecture that it may belong to the same region. THAUMATONEUEA, n. g. Head* broad ; eyes large, globose, very prominent. Thorax robust. Legs moderate (only the anterior present). Abdomen slender, cylindrical (the apical portion absent). Wings elongate, broad, ohtase, petiolated at the base to beyond the 1st nervule in the lower basal area ; afterwards the inner margin is gradually rounded to before the middle (more so in the posterior), and then slightly sinuate to before the apex. Nodus placed near the base, at about one-fifth of the length of the wing. Pterostigma large, dilated beneath, its inner edge very oblique, so that the lower edge is much longer than the upper. Only three to five ante-nodal nervules, of which only the first two are continued below the subcosta. Post-nodals very numerous. Post-stigmatical area densely reticulated. Upper basal area empty, the lower unth two nervules. Quadrilateral regular, oblong, empty, slightly more than half the length of the upper basal area. Arculus angulated, its sectors separated at the base, the lower arising from about its middle, the upper slightly above. Nodal sector arising at about the middle of the length of the wing ; sub-nodal at about the nodal point ; the median befoi-e the nodus. Post-costal area very broad, much dilated before its extremity, owing to the arching of the second sector of the triangle, with many branches. Reticulation dense, especially on the inner margin ; two to four long supplementary sectors interposed between each sector ; all the sectors (including the supplementary and the branches in the post-costal area) strongly curved at their ends. The insect on which this genus is founded has the aspect of a gigantic EupJicea, of the broad-winged group. There can be little doubt that it belongs to the Legion AmpJiipteryx of De Selys, and is perhaps most nearly allied to the genus AmpJiipteryx ; but it differs The bead has been detached, but apparently belongs to the insect.