On Certain Seed-Infesting Chalcis-Flies. 391 



The larva. — The larva is dull white with brownish mandibles; it is 

 1.6 mm. long by i mm. wide and is sparsely clothed with rather long 

 hairs more distinct towards the head. The antennal tubercles are 

 distinct and tipped with brown. The mandibles have on the inner 

 edge one large sharp tooth and back of it a very small blunt one. Fig. 98. 



The adult. — Female. — Length, 1.7 to 2. 8 mm.; abdomen, .9 to 1.5 mm. 

 General color black; head and thorax densely umbilicate-punctate. 



Dorsal view of the head is shown in PI. II, fig. 4. In form and sculp- 

 ture the thorax is very similar to that of Eurytomocharis triodiae. Propo- 

 deum coarsely rugose on the sides; the longitudinal median depression 

 broad and shallow, densely and distinctly reticulate-punctate except 

 for the longitudinal furrow which is rugose and much wider in front 

 than behind, where there is frequently a single or rarely a double 

 longitudinal carina. In the smaller specimens the 

 median furrow is entirely lacking. 



Antennas slightly clavate, dusky except scape beneath 

 which is dull brownish yellow. The relative length of 

 the segments is shown in PI. II, fig. i; viewed at a 

 different angle the club is a little broader. Coxag black; 

 femora black, tip yellowish brown; tibiae brownish more 



or less infuscate medially; tarsi nearly white. On pj^ „8 



cephalic face of front coxae there is a deep diagonal Mandible of 

 furrow bounded in front by a distinct ridge. This seect Chalcis'^^' 

 ridge near the upper outer angle makes a sharp turn 

 and extends transversely around on the side of the segment. 

 Mesosternum has a distinct median pit in front, median carina lack- 

 ing except posteriorly where it is represented by a delicate ridge. 

 Wings hyaline. 



Abdomen smooth, without sculpture, subcompressed, seen from the 

 side broadly ovate, the tip sharp-pointed; segments 2, 3 and 4 subequal, 

 the fifth longer than 3 and 4 together, the sixth very narrow and gently 

 emarginate in front of the spiracle of the seventh; the seventh segment 

 clothed with fine white pile. 



Male. — Length, 2 to 2.4 mm.; abdomen, .9 mm. These measure- 

 ments are only approximate because of the contracted condition of the 

 abdomen in these specimens. 



Propodeum with the median longitudinal depression wide and shallow, 

 the furrow much less distinct than in female. The legs and wing veins 

 are much darker than in female. Antennae black; scape at base and 

 ring-joint brownish. Scape slightly enlarged beneath towards tip; 

 pedicel subglobose; the five funicle joints subequal, arched above, not 



