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Show 1871.] ON N E W I N S E C T S F R O M Y U N A N . 247 the tip, approaching the mesosternum. Abdomen testaceous, with a piceous stripe which extends from the base to beyond half the length. Fore wings cinereous towards the tips, with numerous blackish points, which mostly form very irregular bands; a row of subcostal black more determinate points. Hind wings cinereous, veins black. Length of the body 15 lines ; expansion of the fore wings 30 lines. The prosternal spine is shorter, stouter, and more obtuse than that of C. rubiginosa, which this species closely resembles. The speckled fore wings distinguish it from C. spissa. 3. MAST AX INNOTATA, Walker, n. sp. Male. Ferruginous, slender. Head elongate, obliquely but abruptly ascending; tip of the vertex conical, prominent, slightly bilobed; front long, oblique, with four well-defined keels; inner keels converging towards the face; outer keels divergiug towards the face ; clypeus and fore part of the face tawny. Antennae black, short, slender, tawny towards the base. Eyes elliptical, prominent. Prothorax short, sellate, widening hindward, with a slight keel; a blackish mark on each side in front of the transverse impressed line. Hind femora as long as the abdomen. Hind tibiae slender, piceous, a little longer than the hind femora; spines small. Fore wings narrow, cinereous, with two pellucid marks near the tips, the mark on the hind border larger and more remote from the tip than the other, which is costal. Hind wings cinereous hyaline, with a blackish costal line ; veins black. Length of the body 10 lines; expansion of the fore wings 20 lines. 4. OXYA DIMINUTA, Walker, n. sp. Male. Tawny, slender. Head and prothorax with two ferruginous stripes, which do not extend beyond the fourth transverse impressed line of the prothorax. Head slightly elongate; vertex with two keels between the eyes; tip depressed, transverse, subrhomboidal; front hardly oblique, with four strongly marked keels; inner keels slightly curved towards the vertex, parallel towards the face; outer keels diverging towards the face. Antennae slender, piceous towards the tips. Prothorax with a keel, which is hardly apparent except towards the hind border ; the latter rounded. Prosternal spine long, acute, rather slender. Spines of the tibiae with black tips. Wings half developed. Hind wings cinereous hyaline, veins black. Length of the body 10 lines. 5. CALOPTINUS INCOMPTUS, Walker, n. sp. Male. Tawny, testaceous beneath. Head short; vertex with two slender furrows between the eyes ; tip flat, subrhomboidal; front in structure like that of G. inamcenus. Antennae slender. Prothorax with a slight keel and with the usual transverse impressed lines; hind border elongated, slightly angular. Prosternal spine stout, long, slightly acute. Hind legs testaceous ; spines of the tibiae with black tips. Fore wings cinereous, tawny towards the base, with |
