LAMB—DIPTERA: HETERONEURIDA, ORTALIDA, TRYPETID A, SEPSIDA, ETC. 339 
34. Drosophila punctulata Loew, Cent. i. 100, Berlin. Ent. Zeitschr., vi. (1862). 
Becker, in his paper on the Diptera of Madeira, says that Wollaston’s D. repleta 
(Ann. Mag. Nat. Hist., Ser. 3. 1. (1858), 117), is the same species. It seems fairly 
cosmopolitan, being known from Madeira, Cuba, &c. 
The specimens agree with the description, although there is some variability in 
respect to the spotting of the thoracic dorsum. It may be noted that the costa is 
distinctly slit, spined and swollen at the end of Ist section. Two pairs d. ¢. are present. 
The inner row of aristal rays are present, though but 5 in number. 
Localities. Seychelles. Mahé: Cascade Estate, 800 feet and over, 1908—9. 
35. Drosophila jucunda, n. sp. (Fig. 24 and Plate 20, fig. 26). 
An elegant species with beautifully marked thorax, &c. 
Head. Eyes bare. Top view :—frons yellow, darkened and slightly curvilinearly 
ridged between eye-margin and pale centre line. The ocellar area is also darkened. Hye- 
margins rather shining. Front f. 0. nearly parallel, inserted on inner edge of eye-margins ; 
hind f. 0. somewhat divergent: a row of fine bristles from there forward to frons. The 
div. i. v. and conv. o. v. are situated on two black triangles on the vertex; these 
are continuous with the black back of head; crossed p. v.; div. oc. inserted rather 
close to front ocellus. Front view :—2nd joints of antennee touching at base ; a sharp, 
rather narrow keel most prominent in centre. Clypeus black margined, rest of face dusky 

Cas eS re er SA eS 
Fig. 24. Drosophila jucunda, n. sp. x 40. 
orange. Side view (Plate 20, fig. 26):—the black top of vertex is very prominent ; 
antennee ; basal joints yellow, one evident spine on top; 3rd joint suffused and pubescent ; 
arista pale to branching of lower ray except where rays leave it, 4 upper rays, the first 
close to base, two lower and one terminal, no sign of any mner rays. Vibrissa stout 
with even row of rather stout small bordering bristles. Palpi rounded stick shaped, 
black, tongue orange. A few long bristles on hind jowl. Post-orb. b. strongest above. 
Thorax. Dull black with small discal bristles in rows and well-defined orange 
pollinated marks as follows: two longitudinal slightly interrupted stripes from front to 
about level of front d.c. b.: the black band between carries 4 acr. rows. In front of the 
cross suture is a short transverse line each side. An ill-defined sparse pollination on the 
front of the thorax lies between these and the front of the central pale line. Just 
outside the end of the longitudinal lines is a short oval line, outside which again are 
SECOND SERIES—ZOOLOGY, VOL. XVI. 44, 
