23'2 Annals of tie South Africa// Mitsemn. 



Meijere lias pointed out the slight distinctions between the various 

 Handlirschian genera, and the increased difficulty of separating these 

 groups with the accession of new forms. It seems best to recognise 

 but the three recent genera, Protoplasa, Osten Sackeu, Tanyderus, 

 Philippi, and Peringueyomyina, gen. n. 



The discovery of a species of this family of flies in Africa is of more 

 than usual interest, as it bridges a very important gap in the known 

 distribution of the family. The present insect differs so remarkably 

 from all of the previously described species of the family that it is 

 necessary to erect a new genus to receive it. The name P/'ringueyowyina 

 is proposed, in honour of Dr. Louis A. Peringuey, as an appreciation 

 of the many favours shown the writer in his studies on the Tipuloidea 

 of South Africa. The presence of an elongate rostrum is unique in 

 the family, although long known in the related family Tipulidae, where 

 it occurs in several widely -separated tribes. Nothing is known of the 

 habits of the genotype, P. barnarcli, but from the structure of the 

 rostrum it seems probable that the insect feeds 011 the nectar of 

 tubular flowers as in the Tipulid genera, Geranomyia, Toxorhina and 

 others with conspicuous elongate rostra. 



FAM. TANYDERIDAE. 



GEN. PERINGUEYOMYINA, gen. n. 



Rostrum elongate, exceeding the combined head and thorax ; rather 

 stout, cylindrical, with the base enlarged, the surface with numerous 

 subappressed hairs bearing the mouth-parts at the apex ; maxillary 

 palpi slender, four-segmented, the three basal segments subequal in 

 length, the last segment about a third longer than the penultimate ; 

 labial lobes fleshy, transverse. Antennae with apparently only 16 

 segments, moderately elongated, setaceous ; second scapal segment 

 swollen, subglobular; three basal segments of the flagellum stout, 

 the remaining segments gradually elongated, slender, provided with 

 long verticils that are about equal in length to the segments that bear 

 them; in addition to the verticils, the segments possess a rather 

 abundant suberect pubescence. Head narrowed behind. Eyes large, 

 broadly contiguous beneath, narrowly separated by the vertex above ; 

 the oniinatidia small with short erect hairs between them. Prothorax 

 large and conspicuous, as in the family. Legs with the margin of the 

 hind coxae swollen anteriorly and provided with a row of black setae ; 

 tibiae with short spurs. Wings broad, with five radial, three medial 

 and a single anal vein attaining the margin ; m-cu distinct ; anal 



