Ptecticus aurifer group: Upper frons, median occipital sclerites and vertex yellow; wings bicolored or more or less darkened; scutum uniformly yellow to brown; M3 slightly sinuated, CuP (postcubitus) well developed, pigmented; vein R2+3 slightly sinuate, shorter than Rs, radial triangle (r2+3) higher than crossvein
M-Cu well developed.
It is characterized by the stalked ocelli and compound eyes, pronotum with umbelliform process dorsally, not concealing the scutellum or the forewings in repose; the forewing and hindwing with one r-m and one m-cu crossvein
; tibiae not foliaceous; metatibiae with cucullate setae in row II, first tarsomere has one cucullate setae apically and the abdomen without conspicuous punctuation (Deitz, 1975; Flynn, 2014).
Wings light brown hyaline, posterior crossvein
slightly infuscate, length 4.6 mm (3.9), length to width ratio = 2.5 (2.4).
Forewing with crossveins
absent in costal area; basal cell large; ScP+RA (branch ScP+RA forked from RP in proximal third of wing), RP 3; 2 r-m crossveins
; MP 7-9 branched (1st M fork just distad of 1st R fork), following a proximal nodal cell C3, postnodal media cells divided into distal and proximal cells by 6 or 7 im crossveins
in a post-nodal line; 1 m-cu crossvein
; CuA and CuP usually simple; C5 absent or very distally and open; clavus long, open; Pcu reaching A1 past distal third of wing in apical portion of clavus; 1-4 transverse veins CuP and Pcu near apex of clavus; A1 arched to follow contour of postclaval margin, creating narrow (and usually darkened) cell between A1 and trailing margin of wing.
Wing: Length is measured from the humeral crossvein
to tip, breadth at the level of the r-m crossvein
The genus can be recognized mainly by all femora with spine-like antero- and posteroventral setae; setae on fore femur distinctly stronger than those on mid and hind femora; mid and hind legs longer and more slender than fore leg; vein [R.sub.2+3] sinuous just before margin; crossvein
r-m at distal three-fourths of cell dm; metastemum bare; and postcoxal metathoracic bridge completed (Carvalho et al.
According to this author "the differences [of bintoniellidaeans with respect to vitimiidaeans] are only that the base of CuA1 [CuPa[alpha]] disappeared [....] and became a crossvein
so that the stem of MP + CuA1 [CuA + CuPa[alpha]] branches from M".
Wing length was taken from the intersection of the wing margin and vein III to the intersection between this vein and the anterior crossvein
. Finally, the length of the posterior crossvein
Forewing Rs-M joined by a crossvein
or fused for a distance.