Fatnili/ f. — 1. Po.^terior margin of prothorax not .produced 1)ack ] 

 wards to insertion of wisjgs; anteriorly produced into a,| 

 neck. 2. Mandibles large, curved, narrow, and acute, — | 

 base not toothed externally. 3. Antennae long and tlli- ! 

 form. 4. Abdomen petiolated. 5. Legs very fossorial, f 

 long, and spiny, — posterior of unusual length. 6. Often I 

 gaily colored, being ornamented with black and red, brown | 

 and red, or are entirely black or blue. J 



20 



8PHEG 

 IDAE. 



(Mud- 

 wasps.) 



FuiiiU^/ g. — 1. Antennae long, not geniculate; in males stouter") 

 with shorter joints than in females. 2. Head shorter 

 when seen from above, being more transversely ovate than 

 in f. 8. Eyes narrow oval. 4. Prothorax extended 



back to wings. 5. Wings large and broad. 6. Body 

 oblong. 7. Legs long and slender with tliick slender 

 si)ines. £. Maxillary palpi six, and labial jjaljii four- 

 jointed. 



21 



pojrPiL- 

 IDAE. 



FaiiiihjYi.. — 1. Head with broad front. 2. Eyes small, indented. 



3. Auntennae of male long and slowly thickened toward 



the tip, — of female short, thick, and elbowed on second 

 joint. 4. Clypeus large, irregularly quadrilateral. 5. \ 



Prothorax very square in front. 6. Body and legs very 



hirsute. 7. Labriim small. 8. Mandibles, in females 

 especially, large and hi'oad. 



SCOLI- 

 ADAE. 



Fainihji. — 1. Males and females winged, workers wingless. 2. 

 Males smaller than females, and workers smaller than males. 

 3. Fossorial. 4. Head in general triangular. 5. Eyes 

 large in males, smaller in workers. 6. Antennae long, 

 slender and elbowed. 7. .Mandibles stout and toothed. 

 8. Maxillary palpi one to six jointed. '9. Labial palpi 

 two to four jointed. 10. The longer, more slender work- 

 ers consist of two forms: one with large cubical head, work- 

 er major, and the smaller headed form, worker minor. 

 11. Larva short, cylindrical, with the end of body obtuse. 



23 



FORMICA- 

 KIAE. 



(Ants.) 



Piercers; larvae both unth and without legs. 



Fuitiiliji. — 1. The thirteen jointed antennae, elbowed. 2. Eyes 

 oval and ocelli distinct. 3. Maxillary palpi five-jointed. 

 4. Labial palpi three-jointed. 5. The nearly sessile ob- 

 long abdomen has but three to five rings visible, the re- ■ 

 maining ones forming a long, large, jointed, sting-like ovi- 

 positor, drawn in and out like a telescojie. 6. Green or 

 black. 7. Fly and run briskly in hot sunshine. 



24 



CHRYSID- 

 IDAE. 



(Cuckoo 

 flies.) 



i''(/w//// k. — 1. Head rather square. 2. Antennae long, slender, ") 25 



many jointed, and not usually elbowed. 3. Body usually 

 long and slender. 4. Abdomen inserted over hind pair 

 of trochanters, and usually consists of seven visible seg- 

 ments. 5. Ovipositor long, exserted, usually protected 

 by a sheath formed of four stylets of same length. 6. 

 Larva a soft, fleshy, cylindrical, footless grub. 



ICHNEU- 

 MONIDAE. 



(Ichneu- 

 luous.) 



;%^^- 



