176 A. A. Girault: 
Cotypes— Cotype No. 15274, United Staates NationalMuseum, 
Washington, D.C., the three remaining females. All specimens 
minutien-mounted. 
Subfamily Elachertinae. 
Elachertoidini new tribe. 
Femal:— Hind tibiae with two spurs, neither long, unequal 
in length; pronotum rounded cephalad; tarsi five-jointed; antennae 
13-jointed. This tribe is separated from the others by the five- 
jointed tarsi. 
The following type genus. 
Elachertoidea new genus. 
Female:— Head normal, the ocelli in a flat triangle in the 
centre of the vertex, the lateral ocelli their own diameter from 
the eyes, the antennae inserted about in the middle of the face, 
distinctly above an imaginary line drawn between the ventral 
ends of the eyes, 13-jointed scape, pedicel, two ring-joints, six 
funicle joints and a three-jointed club, slenderly clavate, the 
pedicel short, much shorter than the first funicle joint. Pronotum 
rather long and conic; parapsidal furrows complete, distinet. Ab- 
domen longer than the head and thorax combined, conic-ovate, 
the ovipositor not exserted. Body metallic and sculptured. Axillae 
well-advanced into the scapulae. Fore wings moderate in width, 
long, the submarginal vein unbroken, distinctly somewhat longer 
than the marginal, the postmarginal rather long, between a third 
and a half the length of the marginal, the stigmal vein short with 
a large bladder-shaped knob; fore wings two-banded; their discal 
cilia are moderately dense. Metathoracic spiracle rounded- 
elliptical, moderately large. Scutellum unarmed. Legs slender, 
the tibial spurs on first two pairs of legs are rather stout and long, 
the cephalic one forming a strigil; tibial spurs of caudal legs double, 
unequal, one about a third larger but the largest one not more 
than two thirds the size of the spur of first and second pairs of legs. 
All tarsi five-jointed, the proximal joint of each long and slender 
(shorter in cephalic legs), the fourth joint shortest; posterior 
femora slightly wider than the femora of the other legs. Wings 
with short marginal fringes. 
Male:— Not known. 
Type: The following species. 
1. Elachertoidea bifasciatipennis new species. 
Female:— Length, 2.00 mm. 
Metallic bluish green, aeneous or coppery in places, especially 
along the dorsal aspect of the scutum and scutellum; eyes garnet; 
venation brownish yellow; fore wings hyaline with two rather 
broad, conspicuous smoky brown bands across them, the apical 
one broader, crossing the wing beneath the submarginal vein and 
