ME. WALKER ON DIPTERA COLLECTED AT MAEESSAR. 153 



and another along the snbanal vein. Var. f, Male. Abdomen with 

 a black interrupted subapical band. Length of the body 3-6 lines ; of 

 the wings 5-10 lines. 

 This species is closely allied to D. ferrugineus and to D. trivittatus, but 

 may be distinguished by the luteous hue along the costa. 



185. Dacus diffusus, n. s. Foem. Testaceus, facie nigro fasciata, 

 palpis nigro notatis, thoracis vittis duabus angustis abbreviatis et 

 metathoracis fasciis duabus angustis nigris, abdomine fusiforini, alis 

 subcinereis apud venas fuscescente subnebulosis. 



Female. Testaceous, not shining ; head paler about the eyes, with a 

 black band on the face near the epistoma ; palpi with a black mark 

 on each outer side ; antennae reaching the epistoma ; 3rd joint linear, 

 rounded at the tip, more than four times the length of the 2nd ; arista 

 bare ; thorax with two narrow abbreviated black stripes ; metathorax 

 with two slender black bands ; abdomen fusiform, narrower and a little 

 longer than the thorax ; legs moderately long ; wings slightly greyish, 

 irregularly clouded with very pale brown about the veins ; the latter 

 black, testaceous towards the base; discal transverse vein straight, 

 upright, parted by about one-fourth of its length from the border, and 

 by much less than its length from the praebrachial transverse, which 

 is undulating and very oblique. Length of the body 4 lines ; of the 

 vnngs 7 lines. 



186. Dacus fulvitarsis, n. s. Fcem. Niger, longiusculus, capite apud 

 oculos albo, antennis piceis, abdomine lanceolato, femoribus basi fulvis, 

 metatarsis subdilatis, tarsis posterioribus fulvis, alis cinereis nigricante 

 nebulosis, halteribus testaceis. 



Female. Black, rather long and narrow ; head white about the eyes ; 

 face small ; antenna? piceous, short ; 3rd joint nearly round, a little 

 longer than broad ; arista long, bare ; thorax elongate ; abdomen lan- 

 ceolate, longer than the thorax ; femora tawny at the base ; metatarsi 

 slightly dilated ; posterior tarsi tawny, with black tips ; wings grey, 

 partly clouded with blackish ; veins black ; discal transverse vein 

 straight, upright, parted by about twice its length from the border, 

 and by about thrice its length from the praebrachial transverse ; hal- 

 teres testaceous. Length of the body 2| lines ; of the wings 4 lines. 



Gen. Callantra, n. g. 



F(Em. Corpus convexum. Caput thorace vix angustius. Palpi distincti, 

 porrecti. Antennce longse, petiolo aut articulo P communi, arista 

 uuda. Thorax brevis. Abdomen petiolatum, postice ovatum et valde 

 convexum, subtus concavum. Pedes me4iocres. Ala sat angustae. 



Female. Body convex. Head almost as broad as the thorax ; face ver- 

 tical ; palpi distinct, porrect ; antennae long, seated on a common 

 jjetiole or first joint, with which the succeeding part forms a right 

 angle ; 3rd joint very slightly increasing in breadth from the base to 



