ARABIAN HYMENOPTERA. 



Genus PYRIA, Lep. et Serv. 



35. Ptria smabagdula, Lep. et Serv. Enc. x. 494 

 Wady Ferran. 



Inhabits Egypt and Senegal. 



Gen. HEDYCHRUM, Latr. 



36. Hedtchrum stilboides. Male and female. — Blue, punc- 

 tured, with cinereous pubescence, partly purple and green. Antennae 

 black ; fii-st joint blue. Eyes piceous. Metathorax twice as broad 

 as long, with a stout spine on each hind angle. Abdomen with 

 three large segments, bidentate at the tip. Tarsi piceous. Wings 

 blackish ; veins black. Length of the body 3 J — 4i lines. 



Cairo. 



ACULEATA. 



Tribe HETEROGYNA, 



Fam. FORMICIDiE. 



Genus FORMICA, Linn. 



37. Formica ^qualis. Female. — Luteous^ thinly setose. Read 

 somewhat broader than the thorax ; clypeus with long setae. Eyes 

 black, elliptical. Mandibles very acute, black towards the tips, 

 ci'ossing each other transversely. Palpi long, slender. Petiole of 

 the abdomen with a stout lanceolate upright spine. Abdomen ellip- 

 tical, rather broader than the thorax. Legs slender, rather long. 

 Length of the body 4 lines. 



Wady Nash. 



Genus CAMPONOTUS, Mayr. 



38. Camponotus ligniperda. Formica ligniperda, Latr. Hist. Nati 

 Foiirm. 88. 



Wady Ferran. Mount Sinai. 



Inhabits Europe. 



39. Camponotus sericeus. Formica sericea, Fabr. Ent. Syst. 

 Siqjp. 279. 



Mount Sinai. 



Inhabits West Africa. 



