98 ME. WALKER ON DIPTEEA COLLECTED AT MAKESSAB. 



anticis tibiisque piceis, alls cinereis apud costam exteriorem nigri- 

 cantibus. 

 Male and Female. Black, with very slight cinereous pubescence. An- 

 tennae, posterior tarsi, and halteres testaceous ; tibiae and fore tarsi 

 piceous. Wings cinereous, blackish along the exterior part of the 

 costa ; veins and stigma black. Length of the body 3i lines ; of the 

 wings 6 lines. 



G-en. SoLVA. n. g. 



Corpus lineare. Proboscis lanceolata. Palpi porrecti, lineares, caput 

 non superantes. Antennae lanceolatae. Scutellum inerme. Abdomen 

 thorace longius. Pedes breviuscuh, femoribus posticis incrassatis sub- 

 serratis. Alee sat angustge. 



Body linear. Head not broader than the thorax. Proboscis lanceolate. 

 Palpi porrect, linear, rounded at the tips, not extending beyond the 

 head. Antennae lanceolate, shorter than the breadth of the head; 

 joints indistinct. Thorax with a humeral callus and a hnear callus on 

 each side. Scutellum unarmed. Abdomen rather longer tlian the 

 thorax. Legs rather short ; hind femora incrassated, minutely ser- 

 rated beneath ; hind tibiae very slightly curved, appUed to the femora. 

 Wings rather narrow ; 1st and 2nd cubital veins rather long; length 

 of the discal areolet more than thrice its breadth ; 3rd and 4th exter- 

 no-medial veins connected towards the border; anal and subanal 

 veins connected at some distance from the border. 



25, SoLVA INAMCENA, n. s. F(Bm. Cinereo-nigra, palpis, thoracis 

 callis, scutello, abdominis lateribus, ventre pedibusque testaceis, an- 

 tennis testaceis apice nigris, abdominis segmentis testaceo marginatis, 

 alis subcinereis. 



Female. Cinereous black. Mouth, palpi, calli of the thorax, scutellum, 

 abdomen beneath and along each side except at the base, legs, and 

 halteres testaceous. Antennae testaceous except towards the tips. 

 Hind borders of the abdominal segments testaceous. Wings greyish ; 

 veins black, testaceous towards the base. Length of the body 2^-3 

 lines; of the wings 5-6 lines. 



Gren. Ampsalis, n. g. 



F(Efn. Corpus elongatum, sublineare. Antennce filiformes ; flagellum 

 lineare. Thorax longi-ellipticus ; scutellum bispinosum. Abdomen 

 ellipticum, thorace paullo latius non longius. Pedes longiusculi. Al(S 

 angustae. 



Female. Body elongate, nearly linear. Head a little broader than the 

 thorax. Eyes prominent. Palpi very short. Antennae filiform, much 

 longer than the breadth of the head ; flagellum linear, about twice the 

 length of the scape ; joints indistinct. Thorax elongate-elliptical ; 

 scutellum armed with two obliquely ascending spines. Abdomen 



