148 Mr. B. E. Turner oh Foaaorial Nymenoptera. 



Homonotus songidnolenhis^ Fabr. 



Sphex umguinolenta, Fabr. Entom. Syst. ii. p. 211 (179.3). 



Salnis dormlis, Sm. Ann. & Mag. Nat. Hist. (4) xii. p. 255 (1873). $ . 



Tliis is tlie ty] e of tlie genus and occurs tlnon^liout 

 Europe, also ranging as far as Eastern Siberia. Tliongli 

 tbe thorax and median segment are usually red in the female, 

 much variation exists in this respect, the female son)etiiiies 

 having the thorax and median segment wliully black. 



IJomonotus ariadne^ Cam. 



PompUus (Ferreola) ariadne, Cam. Mem. Manchester Lit. & Phil. Soc. 

 (4) iv. p. 462 (1891). 



Hah. N.E.India; S. India ; Ceylon; Tenasserim. 



'^Homonotus alhistylus^ Sauss. 



Hemis^Hus alhistyhis, Saussure, Grandidier, Hist. Madagascar, xx. 

 p. .31.5 (1892). ■$ . 



llnh. Madagascar. 



Evidently very closely allied to ariadne, having the same 

 nervure at the base of the tir.st cubital cell. 



Homonotus exulans, Turn. 

 Pedmaspis exulans, Tarn. Proc. Zool. Soc. London, p. 338 (1910). $ . 



I doubt if this is more than a geograpliical race of the 

 Indian tlornonotus ariadne, Cam., but the sjdnes at the apical 

 angles of the median segment are distinctly longer and more 

 acute in Australian specimens. 



Hah. Mackay and Kuranda, Queensland ; February to 

 June. 



Homonotus nudiventris. Turn. 

 Tedlnaspis midiventris, Turn. Proc. Zool. Soc. London, p. 339 (1910). $ . 



This differs from exulans in the colour of the \vin":s and 

 neivure.«, and lu the much shorter and blunter spines at the 

 apical angles of the median segment. 



Both species and also H. ariadne, Cam., have the submedian 

 cell of tlie fore wing as long as the median, not a little 

 shorter as in the European H. sanyuinoleutus, Fabr. Tne 

 tirst cubital cell is also [Hnn ted at ihe bise, projecting towards 

 the base of the wing a little beyond the basal nervure, in tiiis 

 also differing from sanffuin(>Ie?i(i(S. 



Hah, Mackay, Queensland ; October. 



This may prove to be a seasonal form of exuhms. 



