New Chaleidoid Genera and Species from Paraguay. 161 
joint somewhat longer than the subquadrate seventh or distal 
funicle joint. Apex of scutellum with a rimmed and projected 
margin which is convex and entire. Thorax with deep umbilicate 
punctures, at the scutellum and axillae, the pronotum and meso- 
scutum with smaller punctures, the metathorax very rough. Base 
of abdomen rounded, the second (first body) segment occupying 
not quite half of the main portion of the region, the third segment 
shortest. Marginal vein long, about half the length of the sub- 
marginal, the postmarginal well developed but not much more 
than a third of the length of the marginal, the stigmal moderate 
in length, much shorter than the postmarginal. Posterior femora 
beneath with eight moderate-sized teeth, the middle ones of 
which are larger, the fourth (from base) largest, twice the sice 
of the sixth, for instance. Metathorax with hairs only in the 
dorso lateral aspect, apparently without lateral projections. 
Male: — Not known. 
A genus resembling Thaumatelia of Kirby and Megalocolus 
of the same author, but differing from both in bearing more 
antennal joints and from the former also in bearing a ring joint. 
But although Kirby (1883) gives the antenna of T’haumatelia as 
11-jointed in the text, his figures (l. c. pl. IV, figs. 9 and 10) shews 
twelve joints and leads one to wonder whether, in this case, he 
has not overlooked the ring-joint and made a mistake in his text. 
If that is so, we have T’haumatelia here. His notes, however, as 
he states, are based on microscopic examinations. The genus 
need not be confused with others. 
Type: The following species. 
1. Thaumateliana bicolor new species. 
Female: — Length, 1.90 mm. 
Black, nonmetallic, marked with flavous as follows: the 
tegulae, the distal fourth of cephalic femur, the cephalic knee, 
the cephalic tibia except all of the middle of the interior side 
and all of the cephalie tarsus except extreme tip of distal joint; 
a moderate area at tip above of posterior femur, at the middle 
of its side sending of a short rectangular shoot down (proximo- 
ventrad) into the outer lateral aspect of the femur; the distal 
and proximal thirds of the caudal tibia, the middle third black and 
nearly equal to either of the yellow areas at the ends; posterior 
knees black; caudal tarsi yellow, the distal joint brown. Venation 
black, brown at extreme base; fore wings fumated under the 
whole of the marginal vein, the fumation brown. Abdomen 
shining, the large second segment glabrous in appearance but 
with fine and delicate polygonal reticulation (2/,-inch objective, 
l1-inch optic), the following segments with the reticulation coarser 
and distinct (with the same magnification) but yet still fine. 
Parapsides of mesoscutum with the punctures smaller and more 
shallow than those of the middle lobe; the parapsidal furrow 
Archiv u escne 11 9. Heft 
