606 Mr. Jx. E. Turner on Fossorial Hymenopteva. 



Eucyrtothynnus avidus, Turn. 



Elaphroptera avida, Turn. Trans. Ent. Soc. London, p. 73 (1908). S • 

 Ulapkroptera avida, Turn. Zool. Jalirb. xxix. 2, p. 201 (1910). $. 

 Eucyrtothynnus fliiV/iis, Turn., Wytsnian, Gen. lusect. cv. p. 25 (1910). 

 Elaphroptera brnchii, Brethes, An. Mus. Nac. Buenos Aires, xx. p. 222 

 (1910). c?$. 



Eucyrtothynnus anisitsi, Turn. 



Elaphroptera anisitsi, Turn. Zool. Jabrb. xxix. 2, p. 204 (1910). (S 2 ■ 

 Elaphroptera paragnayensis, Bretlies, An. Mus. Nac. Buenos Aires, xx. 



p. 240 (1910). §. 

 ? Elaphroptera paranensis, Br^tlies, An. Mus. Nac. Buenos Aires, xx. 



p. 237(1910). c?. 



Eucyrtothynnus (?) inferna, Turn. 



Elaphroptera inferna, Turn. Zool. Jabrb. xxix. 2, p. 214 (1910). S . 

 Elaphroptera tucmnana, Br^tbes, An. Mus. Nac. Buenos Aires, xx. 

 p. 234 (1910). J § . 



The generic position of this species is doubtful, but it is 

 nearer to Eucyrtothynnus than to Elaphroptera. It is allied 

 to E. mapirensis, Turn. 



Telephoromyia argentina, Weyenb. 



Tachypterus argentinus, Weyenbergb, Berl. ent. Zeitscbr. xxvii. p. 277 

 (1883). 



Mons. Brethes (An. Mias. Nac. Buenos Aires^ xx. p. 229, 

 1910) sinks this species and T. cordoviensis, VVeyenb., with 

 some doubt as synonyms of T. rufpes, Guer. Weyenbergh 

 evidently used the generic name Tachypterus because the 

 mandibles are trideiitate and both recurrent nervures 

 received by the second cubital cell, whereas Guerin plainly 

 states that in T. rufipes the second recurrent nervurc is 

 received by the third cubital cell. The name Tachypterus is 

 correct, and Mons. Brethes has been misled by a mistake in 

 Dalla Torre^s catalogue in correcting it to Trachypterus, 

 which is quite a different genus^ not belonging to the 

 Thynnidse. Whether his identification of Gnerin^s species 

 is correct or not I cannot say, as he gives no description of 

 the male. He does not mention the neuration in any of 

 his descriptions of Thynnidse or Scoliidse. 



Eucyrtothynnus rubescens, Brethes, subsp. fiebrigi, nov. 



c? . Niger ; mandibulis (apice excepto), clypeo, maculis duabus supra 

 antennas, margine iuteriore oculorum latissimc antice, gcnis, 



