New Chaleidoid Genera and Species from Paraguay. 165 
Tribe Dirhinini. 
Dirrhinoidea new genus. 
Agreeing with Dirhinus Dalman but the antennae only 
11-jointed, the fore wing maculate with smoky brown; moreover, 
the pedicel is longerthan the proximaljoint ofthe antennal funicle. 
Normal position. 
Female: — Head flattened, the eyes bulging from each side, 
the vertex and face on each side prolonged cephalad into a tooth- 
like horn which guard the antennae; ocelli in an equilateral triangle 
in the center of the vertex, all much nearer to each other than 
either is to the eye margins; margins of the occipital foraminal 
impression laterad, acute. Antennal scrobes forming a short in- 
verted Y. Antennae inserted slightly ventrad of an imaginary 
line drawn between the ventral ends of the eyes, distinctly below 
the middle of the face, 11-jointed — scape, pedicel, 7 funicle joints 
and a 2-jointed club, the latter not distinetly differentiated, the 
flagellum clavate, the pedicel much longer than the proximal 
funicle joint which is slightly longer than wide and less than a 
half the length of the first funicle joint; funicle joints after the 
second, gradually widening and shortening. Pronotum distinct, 
moderately long yet transverse; parapsidal furrows complete; 
scutellum small, rounded, unarmed. Metathorax flat, nearly as 
long as the mesothorax, with lateral carinae and a short, acute, 
toothlike prolongation on each lateral margin cephalad of the 
middle. Abdomen petiolate, the petiole short, wider than long 
and together with the second abdominal segment at base, long- 
itudinally striate (finer striae on segment 2). Abdomen ovate, 
small, normal for the family, not much larger than the caudal 
femora and very much shorter than the thorax; the second segment 
very long, comprising four-fifths of the abdomen’s surface, the 
remaining segments exceedingly short, segment three twice the 
length of the others which are concealed within one another; 
ovipositor not exserted. 
Fore wings maculate, without marginal ciliation, the mar- 
ginal and submarginal veins long, subequal, the stigmal vein ex- 
ceedingly short, barely visible yet about twice longer than its 
width, the postmarginal vein absent. Tarsi 5-jointed; tibial spurs 
single; strigal present. Posterior femora armed beneath with a 
ridge of uniform, short, black teeth like those of a comb, the teeth 
numerous and close set. Body closely punctate, the punctures 
setigerous, the body thus clothed with recumbent, stiff pubescence. 
Male: Unknown. 
Type: The following species. 
1. Dirrhinoidea maculata new species. 
Female: — Length, 4.0 mm. Moderate in size for the subfamily. 
General color black, the head and thorax with decumbent golden 
pubescence, which is not conspicuous; abdomen shining; legs 
9. Heft 
