914 INSECTA. 



OxTA DiMiNUTA, Walker. 



Oxya diminutay Walker, Proc. Zool. Soc, 1871, p. 247. 



J/«Z^.— Tawny, slender. Head and prothorax with two ferruginous stripes, 

 which do not extend beyond the fourth transverse impressed line of the prothorax. 

 Head sHghtly elongate ; vertex with two keels between the eyes ; tip depressed, 

 transverse, subrhomboidal ; front hardly oblique, with four strongly marked keels ; 

 inner keels shghtly curved towards the vertex, parallel towards the face; outer 

 keels diverging towards the face. Antennae slender, piceous towards the tips. Pro- 

 thorax with a keel, which is hardly apparent except towards the hind border ; the 

 latter rounded. Prosternal spine long, acute, rather slender. Spines of the tibise 

 with black tips. Wings half developed. Hind- wings cinereous hyaline ; veins black. 



Length of the body 10 lines. 



Caloptinus incomptus, Walker. 



Caloptimis incomptus, Walker, Proc. Zool. Soc., 1871, p. 247. 



Male. — Tawny, testaceous beneath. Head short; vertex with two slender 

 furrows between the eyes ; tip flat, subrhomboidal ; front in structure like that of 

 C. inamcenus. Antennae slender. Prothorax with a shght keel and with the usual 

 transverse impressed lines; hind border elongated, sKghtly angular. Prosternal 

 spine stout, long, slightly acute. Hind legs testaceous ; spine of the tibise with 

 black tips. Pore- wings cinereous, tawny towards the base, with some irregular and 

 indistinct pale brownish bands formed by clouded veins. Hind- wings pellucid, 

 cinereous about the tips; a tawny costal streak; veins pale yellow, black towards 

 the tips. 



Length of the body 10 lines ; expansion of the fore-wings 20 lines. 



Very closely allied to C. inamcenus. The keel of the prothorax is more 

 strongly defined than that of C. signatipes. 



Caloptinus inamcenus, Walker. 



Caloptinus inamcenus, Walker, Proc. Zool. Soc, 1871, p. 248. 



Male. — Piceous. Head short; vertex with two slender furrows between the 

 eyes; tip flat, subrhomboidal; front punctured, erect, with four distinct keels; 

 inner keels slightly diverging from the vertex to the face ; outer keels nearly parallel. 

 Antennae tawny, as long as the head and the prothorax together. Prothorax with 

 a slight keel, with the usual four transverse impressed lines, and with two colli on 

 each side ; fore border hardly rounded ; hind border sHghtly elongated and angular. 

 Pectus and abdomen testaceous, the latter piceous above towards the base. Proster- 

 nal spine long and stout, rounded at the tip. Hind femora with three black spots 



