GENERA. 115 



t^alviilce dusc basi cornea?, e latere 



palpigerae. 

 Tubus corneus. 



Palpi quatuor, coriiei, insequales. 

 Exterior es 1 — 6-articulati5 e val- 



vujarum latere erumpentes. 

 Interiores 1 — 4-articulati. 

 Fertex stemmatibus tribus lucidis (a). 

 Maxilla transversse, corne<:B. 

 Labium figura varium, proboscidem co- 

 hibens. 

 Truncus. Alee plerisque quatuor, incumbentes, 

 membranaceas, nudiusculae, ner\'}S 

 gaepius validioribus interstinctae. 

 Superiores majores^basi squamula 



munitgs. 

 hiferiores margine knteriori harilu- 

 lis baud raro instructse. 

 Pedes sex, apopbysi biarticulatae articii- 

 lis conicis insidentes, 



TihicB aplce spinulis 1 — 2 armata?. 

 Tarsi quinquearticulati, articulo 

 primo ssepius elongato, extimo 

 unguiculato. 

 Abdomen. Anus feminis et neutris aculeatus. 



[a] In Formica and Mutilla, in most of our English specie.'?, 

 the males and females, or winged sexes, only have stemmata, in 

 the neuter they are obsolete ; their place, in some instances^ is 

 ■ supplied by three points slightly impressed* 



I 0. Aculcus 



