neio and litlh-hnown Tipulidse. 115 



one just divided, the lateral stripes crossing the scutum. 

 Scutellum and postuotura wholly greyish ochreous. Abdo- 

 men brown, with an indistinct ochreous median longitudinal 

 stripe, interrupted on the hind margins of the segments, and 

 continuous lateral pale stripes. Ovipositor shining ochreous, 

 anal valves slender, bare, but shorter and stouter than in 

 C. brobdignagius, not greatly exceeding the genital valves 

 in length. Legs almost wholly fulvous, only the ctenidia, 

 spurs, and extreme tips of the tibise and tarsal joints black. 

 Wings yellowish brown, costal cell and stigma concolorous ; 

 a slight smoky appearance on the lower part of the cord; 

 tips of cells Ro and R^ indistinctly pale, also bases of cells 

 M^ and 2nd Mo ; indistinct pale areas also in centres of 

 cells An and Ax. Cross-vein r just touching base of Rj ; 

 cell J/i just sessile on one wing, with a just perceptible stalk 

 on the other ; Mj and Mg slightly convergent. Halter es 

 with blackish knob and ochreous stem. 



Length of body 32 mm. ; wing 37 x 8 mm. 



China: mountains 50 mils north-west of Chengtu 

 {IV. N. Fergusson) , 1 ? . In several respects, notably the 

 absence of black tips to the Femora, the colour of the post- 

 notum, and the sessile cell M^^ this is quite a distinct species 

 of the brobdignagius group. 



Ctenacroscelis mikado (Westw.). 



This differs from the other members of the brobdignagius 

 group in the colour of the postnotum, which is dark brown 

 in the middle, ochreous at the sides. The abdomen show^s 

 no trace of a pale median stripe ; the ninth tergite of the 

 male has a short dense black pubescence round its apical 

 margin. The British Museum possesses a male and female 

 from, Yokohama [H. Priori and a female from Miyanoshita, 

 Japan [Yerbury), which have been identified by comparison 

 with Westwood^s type. 



EXPLA.NATION OF PLATE X. Figs. 13-19. 



Wings of Formosan Tipulidae. 



Fig. 13. Pselliophora scalator, Alex. X 3. 

 Fig, 14. P. laneipes, sp. n. X 3, 

 Fig. 15. Tipulaflavicosta, sp. n. X 2. 

 Fig. 16. T. terebrata, sp. n. X 2. 

 Fig. 17. T. ariaanensis, sp. n. X 2. 

 Fig. 18. T. biserra, sp. n. X 2. 

 Fig. 19. T. quaJrifulva, sp, n. x 2, 



