AUSTRALIAN HYMENOPTERA CHALCIDOIDEA, VII.—GIRAULT. 179 
TABLE TO THE EARTH’S ECTROMINE GENERA OF ENCYRTID Al.* 
FEMALES. 
The minute ring-joint is usually not considered as of any weight. It is probably present 
in most of the old genera. The frons is normal unless stated to the contrary. 
Winged. 
I. Venation of fore wing not reaching the costal margin, the postmarginal vein absent. 
Antenne 12-jointed, with one ring-joint, the scape slender; mandibles with two unequal, 
acute teeth; frons broad; marginal vein punctiform, the stigmal twice longer. 
Abdomen very short, depressed, triangular ae . .PARATETRACNEMOIDEA Girault. 
II. Venation of fore wing normal. 
1. Funicle 2-jointed, the club solid, one ring-joint. 
Antenne inserted on middle of the face; funicle 1 elongate; marginal vein thrice 
longer than wide. Male t. ae a .. ECTROMOMYIELLA Girault. 
2. Funicle 4-jointed, the club 3-jointed. 
Two ring-joints. Sometimes wingless. Marginal vein linear. Seape slender .. se 
MEROMYZOBIA Ashmead. 
No ring-joints. Ovipositor inserted near tip of abdomen. Winged. Marginal vein 
about twice longer than wide. Scape a little compressed ae Fi site 
OMPHALENCYRTUS Girault. 
3. Funicle 5-jointed, the club solid (male). Postmarginal vein absent. 
Axille widely separated; frons broad; funicle with four branches (joints 1-4 of 
funicle ) a2 oe te oF te: 58 .. TETRACNEMUS Westwood. 
4. Funicle 5-jointed, the club 2-jointed. No ring-joint. 
Ovipositor extruded; marginal vein quadrate; mandibles narrow, with two equal 
acute teeth; funicle joints all much wider than long. Club longer than the funicle. 
Frons broad. Articulation of club not very distinct .. PsrupECTROMA Girault. 
5. Funicle 5-jointed, the club 3-jointed. One ring-joint. 
_Abdomen normal. Seape slender. Form small, slender; marginal vein barely longer 
than wide, the stigmal longer. Frons narrow, broadening at caudal vertex. 
Club distinctly articulated .. a Be See .. ECTROMELLA Girault. 
Abdomen distad compressed, longer than the rest of the body, the ovipositor nakedly 
extruded. Postmarginal vein absent, the stigmal as long as the marginal which 
is about twice longer than wide .. ar ws .. ARHOPOIDEUS Girault. 
6. Funicle 6-jointed. 
Club solid. 
Scape extending far beyond the vertex. No ring-joint. 
Flagellum clavate, compressed, the funicle joints much wider than long; mandibles 
with two acute teeth; face with a transverse suture above antenne; marginal 
vein long but shorter than the postmarginal and stigmal veins He aye 
PARANUSIA Girault. 
Seape of normal length. 
Marginal vein punctiform or only slightly longer than wide. 
Scape slender. Funicle joints a little longer than wide. Postmarginal and 
stigmal veins short, longer than wide. Male with antennal branches - 
PENTACNEMUS Howard. 
Compare TETRACLADIA Howard and TETRALOPHIELLUS Ashmead. 
* AFnasioidea Girault excluded. 
