1865.] 295 



Genus AGATHIS, Latr. 



1. Agathis vulgaris, n. sp. 



Orange-yellow; tip of rostrum, palpi, antennae, tegulae, pleura beneath, coxae 

 and trochanters, tips of posterior femora, their tibiae except an annulus about 

 the middle, and their tarsi entirely, black : wings dark fuscous, with a subhy- 

 aline patch beneath the stigma; metathorax with well-defined longitudinal 

 and transverse elevated lines ; body polished. 



Female.. — Bright orange-yellow, sometimes honey-yellow, smooth and 

 polished, sparsely and delicately punctured, slightly pubescent; on each 

 side of the face a large, deep, blackish puncture; tip of tbe rostrum 

 and the palpi, black; antennae more than half the length of the body, 

 dull black, sericeous, the basal joint shining. Thorax : mesothorax 

 trilobate, the central lobe prominent with a deep groove down its mid- 

 dle ; pleura more closely punctured, the space between the four anterior 

 legs black; scutellum subconvex, the excavation in front very deep 

 with several short, well-defined carinae; on each side of the scutellums 

 two black transverse lines; metathorax with several well-defined lon- 

 gitudinal and transverse lines, forming a small quadrate central area; 

 tegulae black. Wings ample, uniform dark fuscous, the posterior pair 

 somewhat iridescent, nervures black ; the anterior pair with two or three 

 subhyaline patches beneath the stigma ; areolet small, quadrate. Legs 

 color of the body ; the four anterior coxae except a spot beneath, all 

 the trochanters, tips of the middle tibias, the four posterior tarsi, tips 

 of the posterior femora, their tibiaa, except a more or less distinct an- 

 nulus towards the base, black. Abdomen subcompressed, smooth and 

 polished, the dorsal surface of the three basal segments somewhat flat- 

 tened, the lateral margins of the first and second segments acutely cari- 

 nated, the first segment narrowed at base with a small prominence on 

 each side near the base, second segment depressed or somewhat exca- 

 vated on each side, leaving the lateral margins sharp and prominent ; 

 ovipositor longer than the abdomen, orange-yellow, valves black, shin- 

 ing. Length 3 — \-> lines; expanse of wings 6 — 8£ lines. 



Twenty-seven specimens. 



2. Agathis media, n. sp. 



Yellowish-red ; vertex, sides and tip of rostrum, antennas, breast, tegulae, 

 metathorax, four anterior coxae, trochanters, and posterior tibiae and tarsi, 

 black; wings fuliginous. 



Male. — Yellowish-red, sometimes bright orange-yellow or honey- 

 yellow, smooth and polished, sculptured like .4. vulgaris, but more 

 slender in form ; vertex, occiput, tip and sides of rostrum and the palpi, 

 black ; antennae about as long as the body, entirely black ; prothorax 

 above in front, pectus entirely, the pleura beneath, tip of scutellum, 



