102 GENERA OF HYMENOPTEKA. 



plete Habinarffintil and one anmll discoidal cells; naxillary jmlpi 4- 

 juinted, labial palpi 3-jointed titenamiua We^tw. 



Males. 



Anterior wings withont a rtlRnia, with one lone narrow submarpir.al cell, the 



marginal cell also uniiHually narrow, no complite disooidal cell; an- 



tennre 13-jointed ; head small, eyes and ocelli prominent; thorax with 



short dense juibescence, mesothorax with well imi)res8ed loi'dtudina' 



lines Afta Fabr. 



Anterior winp« with a distinct stigma 2. 



2.— Antennw l()-jointed, seccmd joint of fiinicle as long or longer than the two 

 following joints united ; mesothorax above with two coi. •.■rgent grooves, 

 which are confluent towards the middle and then continued in a straight 

 line to scutellum ; one complete submarginal and one disooidal cells; 

 mandibles flat, triangular, toothed on apical margin. 



Tetrainoriiini Mayr. 



Antennse with more than 10 joints 3. 



3. — Petiole attached to uj»per basjvl surface of abdomen, which is cordiform, 

 more convex beneath than above and acuminate behind ; antenna* 11- 

 12-jointed, scajie very short, only a little longer than first joint of funi- 

 cie, which is spherical ; mesothorax without distinctly impressed con- 

 verging lines; metathorax unarmed C'remastogasler Lund. 



Petiole attached to the basiil middle of the abdomen 4. 



4. — First submarginal cell partially divided medially by a longitudinal iiervnre, 

 discoidal cell present; antennje 13-jointcd; mesothorax with two con- 

 vergent grooves; tibial spurs i)ectinate Mjrmioa Latr. 



Firet snbmarginal cell not divided "). 



5. — Anterior wings with one complete discoidal cell 6. 



Anterior wings withont discoidal cell, one complete subniiirginal cell 7- 



ti. — Two complete submarginal cells (except perhajis in Pogonomiirmex). 



Second submarginal and discoidal cells contiguous; antennse 13-jointed, 

 first joint of funicle short, about one-third the length of second, 

 which is much longer than third. 

 Eyes large, oblong, head elongate, considerably extended behind the 

 eyes; discoidal cell much larger than the second submarginal; abdo- 

 men elongate; body slender, glabrous Psendomyrma Guer. 



Eyes round, prominent, head subtransverse, not much extended behind 

 the eyes; discoidal cell not larger than secoiid submarginal cell; ab- 

 domen subglobose, shining ; body pilose.. Pogouomyrmex Mayr. 

 Second snbmarginal and discoidal cells remote, marginal cell open at apex ; 

 antenna; 13-jointed. 

 Firet joint of funicle spherical, the others cylindrical ; apex of second 



submarginal cell not appendiculate Pheidole Westw. 



First joint of funicle cylindrical like the others: aj)ex of second sub- 

 marginal cell appendiculate Aphienogaster Mayr. 



One complete submarginal cell. 

 Marginal cell elongate. 



Antenna; 12-jointed, first joint of funicle globose, scape short, ovate; 

 marginal cell open at apex; mesothorax withont converging im- 

 pressed lines Stolenopsis Westw. 



