TABANIDAE COLLECTED ON FORMOSA. 
127 
1° abdomen not tomented; 
2° tibiae all spindle-shaped, long, cylindrical; 
3° antennae almost as long as head and thorax together, basal 
joints stick-shaped, long, cylindrical; 
4° dorsum of thorax provided, before the scutellum, with a light 
coloured hair-wreath. 
As far as I am acquainted with the exotic species, the following 
forms belong to this genus: Chrysops fasciatus Walk., fixissimus Walk., 
flavocinctus Rie., dispar F., translucens Walk, from the Oriental Region 
and Chrysops longicornis Mcq. from the Ethiopion Region. 
Neochrysops grandis n. sp. 
cf 10*5 — 12 mm. long. 
Tomented parts of head ochraceous, scarcely pubescent. Frontal 
calli black, subantennal callus yellowish, all connected with each other, 
oral calli absent. Antennae and palpi black, but the basal joint of the 
former and the tip of palpi yellow. Length of the black haustellum 
equal to the height of the eyes. 
Thorax black, breast-side pollinose, side hairs and praescutellar 
wreath golden yellow. Legs black, in transmitted light brownish, only 
the tarsi of 2 nd and 3 rd pair yellow. Costal stripe reaching the tip 
of wings, here pointed, on the basis enlarged, the squarish cross-band 
reaching to the hind margin. Anal cell closed. Hind marginal cells 
parallel. 
Abdomen yellow with very few black hairs; dorsal black parts are: 
two /X shaped spots on the 1 st segment and two squarish ones on the 
3 rd , these extendig also to the 2 nd , and connected on the edge of this 
segment by a narrow line. On the ventral side black coloured are: the 
epipleurae of 4—7 th segments, tip of the venter, the basal segment, 
2 spots in the middle, and, eventually, a middle-stripe reaching from the 
letter ones to the tip. 
Ç 12*4 mm. resembling the cf 7 , except: facial calli almost entirely 
black as well as palpi, distal half of abdomen and the hind margin in middle 
of the large second segment sinuated, and on middle of back a narrow, 
yellow coloured longitudinal stripe, lying on the 3 rd and 4 th segments. 
Types from Toa Tsui Kutsu, Taihorin and Koshun. 
Chrysops dispar Fabr. 
% 
About 60 specimens were examined from Annam, Indo-China, For¬ 
mosa and Romeo ; the frontal calli always bear brown stripes on an 
