LAMB— DIPTERA : LONCH^ID^, SAPROMYZID^, EPHYDRID^, ETC. 317 



Inner vertical bristles. Inside the triangle stand the ocellar bristles, two smaller slightly 

 convergent bristles just beyond the front ocellus, and two stout parallel bristles nearly in 

 a line with, but proximate to, the line joining the front pair of fronto-orbitals. There are 

 a few hairs in the space between the frontal triangle, the eyes and the last fronto-orbital 

 bristle. 



Face slightly widening to the mouth, somewhat silvery, the prelabrum yellowish on 

 its margin. Jowls about one-fifth the vertical height of the eyes. Two vibrissa on each 

 side and a bristle on the jowl below the eye. Back of head the same colour as the frons. 

 Antennae with first and second joints yellow, third joint brown. Arista with three side 

 and one terminal rays. 



Palpi yellow with a few stout black hairs below ; tongue rather horny. 



Thorax. Olivaceous with minute granular pollination ; chsetotaxy as in generic 

 description ; scutellum darker but paler at the tip ; pleurae dark grey, slightly shining, 

 hairy on the meso-pleura and about seven hairs on the sterno-pleura, three in a horizontal 

 row at the top and four in a vertical row from the mid-point. Metanotum somewhat 

 shining, silvery grey. 



Wings glassy with yellow veins, costa ciliated with fine closely-packed black hairs, 

 stouter on the first section. 



Halters pale. 



Legs. Coxge yellow ; femora all dark brown-grey except the knees ; tibife suffused ; 

 tarsi yellow except the last joint in hind and middle and last two joints in front legs. All 

 the legs clothed with short bristly hairs ; a longer row below the front femora ; a stout 

 spine at the end of the middle tibiae. The hairs on the tarsal joints are exceptionally 

 evident. 



Abdomen. Shining brown-black, the last segment being the darkest ; the distal 

 margins of the segments are very narrowly lined with a paler tone. Dorsum covered with 

 bristly hairs, the marginal ones longer : the last segment has some eight still longer 

 bristles, which stand out more nearly perpendicular to the surface. 



Size. 2i mm. 



Locality. Seychelles. Mahe : from seaweed on beach at Anonyrae Island, I. 1909. 



Paralimna, Loew. 



Paralimna Loew, Monograph of the Diptera of N. America, i. (1862), p. 138. 



17. Paralimna lineata De Meijere, Tijdschr. voor Entom., li. (1908), p. 165. 



This species was described from Semarang : the specimens from the Seychelles agree 

 closely with the description. 



Localities. Seychelles. Mahe : from marshy ground just behind the beach at Port 

 Glaud, 5. XL 1908 ; marshy ground near sea-level at Cascade, 20. II. 1909. 



