640 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.42. 



granular and with scattered punctures; second segment granular, its 

 apical fourth reddish, the thyridia brownish; remaining segments 

 mostly reddish, blackish down the back. 



Type-locality. — San Bernardino, Paraguay. 



Type.— Cat. No. 14744, U.S.N.M. 



Collected by K. Fiebrig. 



Genus MACROPHION Szepligeti. 

 MacropJiion Szepligeti, Gen. Ins., Fasc. 34, 1905, p. 32, two species. 

 Type. — MacropJiion ornatus Szepligeti; by present designation. 



MESOCHORUS PALLIPES Brischke. var? 



Male. — Length, 3.5 mm.; occiput stramineous; third segment 

 testaceous or stramineous except apically and laterally where it is 

 more or less brownish, fourth and succeeding segments blackish above 

 testaceous laterally. Otherwise as in M. pallipes as originally 

 described. 



Labeled, "Europe, Gip. Moth Lab. 1446, 1446 Jn." 



MESOCHORUS GRACILIS Brischke. var? 



Male. — Length, 2.5 mm.; predominating color blacldsh or stramin- 

 eous; head stramineous, face sometimes tinged mth reddish, stem- 

 maticum always blackish; petiole above entirely or almost entirely 

 black or blackish, segments beyond the second, blackish above, testa- 

 ceous laterally. 



Labeled, "Europe, Gip. Moth Lab. 1216 C. Ap. 25, 28, 29, May 6, 

 from E. chrysorrJicea." 



MESOCHORUS TRISULCATUS, new species. 



Female. — Length, 4 mm.; head mostly blackish, orbits, a line 

 across the face involving the antennal fossae and cylpeus stramineous, 

 malar space and most of mandibles almost colorless, 

 whitish, palpi whitish, antennaB brownish diversified 

 with stramineous ; thorax mostly black, tubercles, tegulse, 

 lower edge of pronotum, base of wings and nearly all of 

 legs, stramineous, other edges of pronotum and scutel 

 more or less, castaneous, claws and apex of apical tar- 

 sal joint more or less fuscous, hind femora testaceous 

 apically their tibiae with a fuscous band at base and 

 apex, propodeum mostly black or blackish, first and 

 Fig. 2.-MEDIAN second pleural areas confluent, castaneous, the impor- 

 pROPODEUM°m ^^^^ areolation is best shown in the accompanying fig- 

 mesochorus ure; petiole mostly black above its lateral edge, emar- 

 TRisuLCATus. gij^atc at tlic sphaclcs, postpetiole beyond the spiracles 

 shorter than rest of petiole, nearly parallel sided and trisulcate, 

 the dorsum and two sides each being mostly occupied by a 



