r.ERClROTH: ON SOMK SOUTH AFRICAN TIPULIDAE. 1 33 



P0I)C)NP:URA nov. gen. 



Characteres Psiloconopac generis, sed vena axillaris furcata, 

 ramo furcae anteriore posteriore nnilto longiore. Inter cellulas 

 axillarem et spuriam igitur adest cellula axillaris secundaria. 



It is necessary to found a new genus upon this insect, for 

 if we leave it in any of the former genera of Eriopterina, it is 

 impossible to say whether it should be referred to Psiloconopa 

 or Symplecta. In the structure of the axillary vein it comes 

 nearer to Symplecta Meig., but the praefurca is very straight 

 and forms an acute angle with the subcostal vein. The last 

 three joints of the antennae also seem to be a little smaller 

 than the preceding ones. If we unite Podniieitra with Symplecta 

 or Psiloconopa, we cannot leave the two last mentioned genera 

 separated. The furcation of the last longitudinal vein is a very 

 strange character in the Diptera, and I do not know, indeed, if 

 it have been observed heretofore. — As already suspected by 

 ScHiNER, there is no real difference between the genera Trimici-a 

 O. S. (Gnophomyia Schin. nee. O. S.) and Psiloconopa Zett., 

 and Wallengren is evidently right in uniting them. The diffe- 

 rence in the three terminal joints of the antennae is so slight, 

 that it is sometimes impossible to say if a specimen should be 

 referred to Trimicra or Psiloconopa. 



7. Podoneura anthracogramma n. sp. 



Caput ochreo-cinereum, rostro cum palpis nigro. Antennae 

 bases alarum vix attingentes, nigrae, articulis duobus primis pallide 

 flavis, articulis flagelli oblongo-ovatis, tribus ultimis magis elon- 

 gatis. Collare bene evolutum, ochreo-cinereum, linea media 

 longitudinali atra et linea intra margines laterales paullo reflexos 

 minus obscura praeditum. Thorax ochreo-cinereus, lineis tribus 

 dorsalibus bene determinatis atris signatus, lineis lateralibus antice 

 deorsum arcuatis et postice pone suturam aliquantum continuatis, 

 linea media etiam pone suturam continuata, sed ibi multo tenuiore, 

 minus obscura, per scutellum flavocinerum et metanotum cinereum 

 usque ad basin abdominis currente; pleurae cinereae. Alae (fig. 2) 



