Girault, Trichogrammatidce. 
85 
BB. Antennae 7-jointed; discal ciliation of the fore wing sparse and 
more normal than otherwise. 
Fore wings slender, with long marginal cilia, the marginal vein 
long; ant'ennae with one funicle joint and one ring joint, slender, 
distinctly segmented; stigmal vein subsessile; abdomen long, 
conic-ovate. Oligosita Haliday (Type : 0. collina Haliday). 
BBB. Antennae 6-jointed; ’ discal ciliation of the fore wing dense and 
arranged in Regular longitudinal lines. 
Fore wings noticeably broad, with short, close-set marginal and 
discal ciliation. Abdomen conical, larger than the thorax. 
Ant'ennae without a ring-joint, the club 3-jointed, not especially 
stout or enlarged, the funicle one-jointed, stout. Chaetostricha 
Haliday (Type: C. dimidiata Haliday). 
AA. Either the ovipositor or its valves is distinctly exserted or else 
long and prominent. 
B. Antennae 7-jointed, Ovipositor long, enclosed to its tips within 
the long and tubular terminal segment of the abdomen which is 
nearly a third of the latter’s length; legs long and slender; 
abdomen long and jointed. Antennae bearing a minute, ovate 
ring-joint, one funicle joint and a 3-jointed club; wings moder¬ 
ately narrow, with long marginal cilia. Prestwichia Lubbock 
(Type: P. aquatica Lubbock). 
BB. Antennae 6-jointed. Ovipositor nakedly exserted and long; 
ant'ennae without a ring-joint, the club 3-jointed, not enlarged, 
the funicle 1-jointed. Centrobia Foerster (Type: Tricho - 
gramma walkeri Foerster). 
The males of Abbella, I ttys, Japania, Oligosita, Chwtostricha, 
Centrobia and Prestwichia are essentially the same as the females; 
but in Ufens, the male antennae are cylindrical and 9-jointed, the 
club terminating in a small fourth joint; the males of Brachista 
and Brachistella are unknown. 
Table of the Genera of the Lathromerini. 
A. Antennal club mor’e than 2-jointed. 
B. Ovipositor or the valves exserted, not always to a great length, 
but distinctly so. 
C. Antennae 9-jointed, without a ring-joint, the club 7-jointed, 
stout. Fore wings moderately broad, the marginal vein 
moderate in length, apparently curved; stigmal vein, curved, 
distinct, with a neck. Ovipositor much exserted. Ophioneurus 
Ratzeburg (Type: 0. signatus Ratzeburg). 
