[ 39 1 



PLATE CXCVIL 



SIREX GIGAS. 



Largest Tailed Wasp. 



Hymenoptera. 



GENERIC CHARACTER. 



Mouth with a thick horny truncated (hort denticulate mandible: 

 feelers four, the hind ones longer and thicker upwards : antennae 

 filiform, of more than twenty-four joints : lling exferted, ferrated, 

 and ftiff: abdomen feffile, and terminating in a point : wings lan» 

 eeolate, incumbent, the lower ones (horter. 



SPECIFIC CHARACTER 



AND, 



SYNONYMS. 



Abdomen of nine fegments ; the 3, 4, 5, 6, black; the others, 

 yellow : thorax hairy. 



Sirex Gigas abdomine ferrugineo : fegmentis. 3. 4. 5. 6 nigris, 

 thorace villofo. Linn. Sjifi.Nat. 2. 928, 1. — 

 Fn. Sv. 1573. 



Fab. Ent. Syji t 2. p. 124. 139. 

 Roef. Inf. 2. Vefp. tab. 8. 9. 

 Sulz. Hift. Inf. tab. 18. fig. 114. 

 Schaff. Icon. tab. 1. fig. 2. 3. 

 Reaum. Inf. 6. tab. 31. fig. 3,2. 

 Degeer Inf. I. tab. 3Q. fig. 1. 2. 

 Sri, Mufi 4. tab. 53. fig. 15. 



The 



