^22 ADDENDA. 



apterous, and has no stemmata ; Its body is, how- 

 ever, without hairs, in which it departs from both 

 genera; it is probably one of the links which con- 

 nect these proximate genera. 



SCOLIA. This genus, at first sight, has a very 

 s strong resemblance to Tiphia, and also to Mutilla. 



The body is usually very hairy, the truncus retuse 

 before and behind, and rather cubical, but it is dis- 

 tinguished from both by the following circum- 

 stances ; its eyes are larger and reniform : its an- 

 tennae are inserted in the middle of the face, they 

 are recurve, but not at all spiral ; their apex some- 

 times is slightly fusiform, but more generally atte- 

 nuate only at its base ; its summit is often very ob- 

 tuse, or rather truncate. The body of these in- 

 fiects is usually very hairy, and the anus is not 

 seldom spinose. 



THYNNUS. No genus in the class seems to be 

 less known than this. There is no specimen of it 

 in the French cabinets. Fabricius described his 

 four species from insects in Sir Joseph Banks's col- 

 lection, of these, two, viz. T. dentatus (f) and T. 

 emarginatus, are certainly congenerous insects, T, 

 integer is doubtful, and T. ahdominalis is an jipis 

 of my family "labio inflexo elongato", of the section 

 '^ ventre femineo glabro", and of the subdivision 

 '^abdomine femineo subcylindrico, ano obtuso." Of 

 the two genuine Thynni, the antennae are filiform, 

 of fourteen joints, inserted in the middle of the 

 (/) Roemer. Gen. Ins. tab. 35. fig. 8. 



face : 



