52 Journal New York Entomological Society. [voi. vii. 



Head not especially large, subglobose, subquadrate, or narrowly transverse ; an- 

 terior margin of mesonotum straight, the angles more or less acute ; second 

 dorsal abdominal segment with transverse folds or carin^e. 

 Pronotum obtrapezoidal. 



Head subquadrate or subglobose ; eyes oblong oval, the malar space dis- 

 tinct ; mandibles broad and flat, obtuse at apex and with a longitudinal 

 sulcus or groove above along the inner margin for two-thirds their 

 length ; clypeus with a high median ridge or carina ; pygidium not very 

 naiTow, deflexed, and loiigiliidiiially striated, the hypopygium dilated 



at apex ; claws cleft Fh^nnus Fabr. 



Head narrowly transverse, with two broad smooth furrows or impressions, 

 extending from the base of each antenna to the vertex ; eyes oval, the 

 malar space wanting ; mandibles not broad, falcate, acute at apex ; cly- 

 peus transversely narrowed, without a median carina, and anteriorly 

 rounded with a slight median emargination ; pygidium strongly con- 

 tracted at sides just before apex, the apex dilated and as seen from be- 

 hind oval, above it is smooth, or transveise/y striated ; claws cleft. 



Agriomyla Gnh-in. 

 Head as seen from above subglobose, eyes small, oval, the malar space 

 wanting ; mandibles acuminate, but with a slight tooth within before 

 apex ; clypeus truncate with a slight triangular emargination anteriorly ; 

 basal abdominal segment with a strongly grooved circular funov/ on each 

 side ; pygidium much narrowed, compressed before apex, with tufts of 

 long hair on each side which curl over and meet above ; hypopygium 

 broadly dilated at apex. 



Elaphroptera Guhin = Ai)inwdromus GufeRiN 



Pronotum quadrate ; eyes oval ; mandibles subfalcate, acuminate ; clypeuS 



slightly produced without median carina ; pygidium oval, not longitudinally 



striated ; claws cleft Entelus IVestwood. 



Family XL. MYRMOSID.'E. 



Table of Genera. 



Males 5 



Females. 



Ocelli wanting 3 



Ocelli present, distinct 2 



2. Thorax quadrangular, the pronotum as wide as the meso-metathorax, usually 



rugose punctate or coarsely punctate ; maxillary palpi 6-, labials, 4-jointed. 



Myrmosa LatreilU. 



Thorax not (juadrangular, compressed at sides from the meso-thoracic angles, the 



pronotum very much narrowed ; mandibles strongly excised beneath, with a 



projection before the emargination. (Type Mutil/a iiuerta R.adowszkowski. 



Ephutomma Ashn. g. n. 



3. Thorax in outline almost round ; head quadrate ; eyes very small, round ; mandibles 



falcate; maxillary palpi 3-jointed ; labial palpi 2-jointed. 



Bradynobaenus Spinola. 



