158 G- R- Osten Sachen: 



Scamboneura. 

 0. Sack. Berl. Ent. Z. 1882, p. 95. 

 Tills genus has been sufficiently characterized by me; its prin- 

 cipal feature consists in tbe apparent obliteration of the praefurca 

 (the portion of the second vein before the origin of the third). Two 

 species are known: S. dotata 0. S. 1. c. — from the Philippine Is- 

 lands and S. vittifrons Walk. J. Proc. Linn. Soc. V, 144 — from 

 Amboina. 



Apeilesis. 

 Macq. D. E. Suppl. I, -8, Tab. 1, f. 3. 



The type is A. cinerea Macq. from Tasmania. I saw a male 

 specimen in the Museum in Vienna, which agrees with Macquart's 

 description, with the following exceptions: Macquart says: jambes 

 sans ergots; on the contrary the tibiae have dictinct although very 

 small, spurs. "What Macquart takes for and figures as the male forceps, 

 are simply digitiform appendages to the forceps, homologous I believe 

 to similar, although smaller, appendages of DolicJwpeza, and espe- 

 cially of the north-american D. annulata Say. The anterior brancli 

 of the second vein is wanting here, just as in Dolichopeza. 



The comparisons Macquart makes with the Limnobina and Pty- 

 chopterina have no foundation; the venation, the 13-jointed antennae 

 and the long legs prove the relationship to Dolichopeza and not to 

 those groups. 



Megistocera. 

 Maekistocera Wied. Dipt. Exot. 41, 1821; Megistocera Wied. 

 Auss. Zweifl. I. 55. 

 Wiedemann, in the Diptera Exotica, introduced this genus for 

 Tipula ßlipes Fabr. from Guinea and for Nematocera fuscana 

 Wied. from Java. They are congeneric, and must therefore be re- 

 garded as the representatives of the genus. In the Auss. Zw. Ins. 

 Wiedemann added a third species, Meg. verticalis from Java, which 

 is an Eriocera, and Meg. hraziliensis Wied. a Pachyrrhina with 

 long antennae. Later authors have continued to describe as Megis- 

 tocerae Tipulidae of dilferent genera provided with very long an- 

 tennae; not a Single one of them belongs in that genus. Meg. atra 

 Dol. is an Eriocera. Meg. pacifica Erichs., dispar Wk., limbi- 

 pennis Macq., dimidiata Westw., vulpina Hutton, chilensis Philippi 

 belong to the genus Macromastios (Syn. Macrothoraoß Jaennicke); 

 they are closely related to Tipida ^ while Megistocera is a relative 

 of Dolichopeza. 



