THE CANADIAN ENTOMOLOGIST 15,1 



into a flattened spatulate blade whose apical portion is ver\' thin. natTowly 



hlackened and minutely denticulate. 

 Habitat. — Sierra Leone. 



Holot.ype.— &, November, 1904, (Major F. Smith). B. M. No. 1904 347- 

 Type in the collection of the British Museum (Natural History). 



Tipula alphaspis nyasae, subsp. n. 



Female. — Length about 30 mm.; wing 25.4-20 mm. 



Closeh- related to typical alphaspis Speiser (East Africa) differing as follows: 



Mesonotal pra'scutum light yellow, the three stripes grayish brown, heavily 

 margined with dark brown; the broad median stripe split by a median brown 

 vitta that becomes obsolete behind; scutal lobes similar to the prsescutal stripes, 

 heavih- margined with dark brown; scutellum yellow, the lateral wings dark 

 brown; postnotum light yellow with two indistinct brownish lines near the 

 sides of the median sclerite; typical alphaspis has this sclerite brown with an 

 orange-\ellow median line. Pleura bright \ellow. The ovipositor with the 

 valves long and straight, the tergal valves very slender, the sternal valves more 

 compressed. The claws of the female are simple as in this sex of the present 

 group of species. 



Habitat. — Nyasaland. 



Holotype.— 9 , Mt. Mlanje, January 1, 1913, (S. A. Neave). 



Faratopotype. — -9, January 28, 1913; a broken 9, bred from the pupa, 

 November 6, 1913. 



Presented by the Entomological Research Committee 1913-236; Imperial 

 Bureau of Entomology 1915-58. 



Type in the collection of the British Museum (Natural History). 



Tipula leonensis, sp. n. 



Size large (wing of male over 25 mm.) ; generally similar to T. gaboonensis 

 but smaller; mesonotum with dark brown spots on the sides of the praescutum 

 and postnotum; abdominal segments dark brown, the intermediate tergites 

 with \-ellowish basal areas on the sides; male hypopygium with the ninth tergite 

 produced into a median lobe which is shallowly notched medially. 



Male. — Length 23 mm.; wing 26.5 mm. 



Frontal prolongation of the head light orange; mouth-parts and palpi dark 

 brown: tips of the latter broken. Antennae with the scapal segments bright 

 orange; flagellum dark brown; antennae short; flagellar segments with very 

 long, conspicuous bristles. Head orange, the vertex narrowed between the 

 large eyes. 



Mesonotal pra'scutum obscure yellow with four dark brown stripes, 

 intermediate pair narrowly separated from one another by a capillary line; 

 lateral stripes broad ; on the sides of the praescutum opposite the anterior ends 

 of the lateral stripes, a large, rounded dark brown spot; scutum yellow, each 

 lobe with two confluent, dark brown spots on the anterior proximal half; 

 scutellum dark; postnotum dark brown, the lateral sclerites obscure yellowish, 

 the centres with a very large, rounded brown area. Pleura yellow. Halteres 

 dark brown. Legs with the coxa^ and trochanters dull yellow; femora and 

 tibia' brown, the tips scarcely darkened ; tarsi long, dark brown ; claws of the 



