52 HYMENOPTERA. 



4. Peiitartliroii brasiliense Ashmead. 



Pentarthron brasiliensis Ashmead, 1904, p. 521. 



Pentarthron brasiliense Ashmead — Schmiedeknecht, 1909, p. 487. 



This species belongs to this genus. I have made the fol- 

 lowing notes from the type specimen in the United States 

 National Museum collection : 



Fore wings as in Pentarthron Riley as far as venation is concerned 

 but not as large, shorter, more rounded, the apical margins nearly 

 circular in outline, the marginal fringes moderately long, about three 

 times longer than is usual to the genus ; discal ciliation of the fore 

 wing in distinct lines, about twelve lines across the widest part of the 

 wing, the lines not very close together, the oblique line of cilia run- 

 ning back from the knob of the stigmal vein absent ; fore wing slightly 

 fumated from the base out as far as the middle of the marginal vein. 

 Posterior wings with the marginal fringes of the caudal margin much 

 longer than the marginal fringes of the fore wing and with at least 

 one principal line of discal cilia, nearer the cephalic margin, the other 

 two lines usually present in the genus, here absent. Ovipositor not 

 exserted. Parapsidal furrows complete, widely separated. Antennee 

 — scape, pedicel, one ring joint, two funicle joints and a solid club. 

 Sculpture of the body inconspicuous ; body smooth. Caudal margin 

 of the mesoscutum acute at the meson, its sides oblique and straight. 

 Antennas normal; pedicel long-obconic, about twice the united length 

 of the two funicle joints, the first funicle joint broader and longer 

 than the second by about a third, both wider than long. Club of the 

 antennae acuminate-conic, as long as the elongate pedicel, the fiat 

 ring-joint and the funicle combined. Funicle and club with a few 

 long, scattered setae. Typical Pe7itarthron excepting for the elongate 

 antennal pedicel, the moderately long fringes of the fore and posterior 

 wings and the absence of the oblique line of discal cilia leading back 

 from the knob of the stigmal vein. 



From a single tagmounted type feinale labelled ''Pentar- 

 thron brasiliense Ashm. Type. Type No. 6596, U. S. N. M. 

 Collected on cotton, Bahia, March, '83." For the purpose 

 of obtaining these notes the specimen was remounted in 

 balsam, relabelled and deposited in the same place. For its 

 coloration see the original description. 



5. Pentarthron retorriduni species nova. 

 Normal position. 



Males apterous ; fore wings of female slightly fumated proximad ; 

 posterior wings without three complete lines of discal cilia. Oblique 

 line of cilia running back from the stigmal knob short, incomplete, 

 containing but two cilia. 



