234 MR. walker's catalogue of dipterous h^tsects 



humeralibus cinereis, abdomine clavato fasciis fulvis, pedibus fulvis, 

 femoribus posticis nigra variis, alis cinerascentibus, halteribus testaceis. 

 Female. Black ; head with silveiy-vvhite tomentum ; mystax com- 

 posed of a few white bristles ; antennae linear, 1st and 2ad joints 

 tawny ; thorax with three stripes and with humeral spots of cinereous 

 tomentum ; metathorax with testaceous tomentum ; pectus with 

 whitish tomentum ; abdomen clavate ; hind borders of the segments 

 and tip pale; 1st and 2nd bands much broader than the others; 

 legs tawny ; hind femora mostly black above ; wings pale cinereous, 

 darker towards the tips ; veins black ; halteres pale testaceous. 

 Length of the body 6 lines ; of the wings 12 lines. 



SuTifam. Laphrites, Walk. 



Gen. Laphria, Fahr. 



21. Laphria REPLENS, n. s. Masetfcem. Cyanea, capite aurato sub- 

 tus albo, antennis nigris articulo 3° fusiformi, pedibus albo setosis, 

 alis nigricantibus basi cinereis. Mas. Abdomine nigricante basi viridi. 

 Fosm. Abdomine purpureo basi cyanescenti-viridi. 



Much resembling L. complens, from which it is especially distinct by the 

 curved lower transverse veiulet of the wings ; it may be distinguished 

 by the same character from L. comes, to which it is very nearly allied, 

 but it differs also from the latter by the longer union of the two sub- 

 costal veins. Male and female. Blue ; head brilliantly gilded, white 

 behind and beneath, where it is clothed with white hairs ; mystax with 

 a few black bristles; antennae black; 3rd joint fusiform; thorax 

 with a tawny mark on each side in front ; pectus white ; legs with 

 white bristles ; wings blackish, cinereous towards the base, the latter 

 hue much more prevalent towards the costa than it is hindvvard ; veins 

 and halteres black. Male. Abdomen almost black, green at the base. 

 Female. Abdomen purple, bluish-green at the base. Length of the 

 body 5-7 lines ; of the wings 10-12 lines. 



22. Laphria liturifera, n. s. Mas etfiem. Cinereo-nigra, capite 

 aurato subtus albo, mystace pallido setis quatuor nigris, antennarum 

 articulo 3" longi-fusiformi, thorace vittis duabus pallide auratis lineis- 

 que duabus nigris, abdomine cyaneo guttis lateralibus transversis ar- 

 genteis, alis obscure cinereis, halteribus pallide flavis. 



Male and Female. Cinereous-black; head with pale gilded tomentum, 

 white beneath and in front ; mystax with a few pale bristles and with 

 four more stout black bristles; 3rd joint of the antennae elongate- 

 fusiform ; thorax with an oblique pale gilded streak on each side in 

 front, with a pale gilded stripe on each side, and with three paler 

 marks on each side of the disk, where there are two black lines ; pec- 

 tus and a band on the metathorax silven' white ; abdomen blue, with 



