274 THE ENTOMOLOGIST. 



third deeply notched on the hind side; fourth segment 

 yellow, with a transverse black spot in the disk ; under side 

 like the upper side. Legs yellow. Wings pellucid ; veins 

 black, yellow at the base. Halleres yellow. Length of the 

 body 4|- lines. Cairo. Wady Nash. 



48. S. turhidus. Male. JEneous. Head yellow; vertex 

 and hind border aeneous, the latter and the thorax with short 

 yellowish hairs ; a black streak extending to the peristoma. 

 Antennae black. Scutellum dingy yellow. Abdomen black, 

 with chalybeous bands ; three large transverse yellow spots 

 on each side ; first pair of spots narrowest on the inner side ; 

 second and third excavated on the fore side, narrowest on the 

 outer side ; third and fourth segments with yellowish hind 

 borders ; under side like the upper side. Legs yellow ; 

 femora black, yellow towards the tips. Wings cinereous ; 

 veins black. Halteres pale yellow. Length of the body 

 A\ lines. Cairo. 



49. S. JEgyptiiis^ Wied. Auss. Zweifl. ii. 133. Wiedemann 

 conjectures that this may be a variety of S. scutellaris, Fahr, 

 Syst. Antl. 25*2, a native of Hindostan. Cairo. Hor 

 Tamanib. 



Gen. Melithreptus, Loew. 



50. M. calceolatus. Sphserophoria ealceolata, Macq» Dipt, 

 Exot. ii. 2, 104, pi. 17, f. 7. Cairo. 



Eristalin^. — Gen. Eristalis, Latr. 



51. E. tenax. Musca tenax, Linn. Syst. Nat. i. 2, 984. 

 Cairo. Mount Sinai. Inhabits Europe. 



52. E. t(Bniops^ Wied. Zool. Mag. ii. 42 ; Auss. Zweifl. ii. 

 182. The markings of the abdomen are variable. Cairo. 

 Wady Nash. Inhabits South Africa. 



53. E. taphicus, Wied. Auss. Zweifl. ii. 191. Cairo. 



54. E. horlicola. Musca horticola, Deg. Ins. vi. 60. Cairo. 

 Inhabits Europe. 



^b. E. punciifer. Female. Chalybeous, with hoary 

 tomentum. Head with a black shining callus between the 

 antennae and the mouth. Eyes bare, ferruginous, with 

 numerous black points. Antennae tawny. Thorax with four 

 shining stripes of the ground hue; scutellum of the ground 

 hue ; hind border dingy testaceous. Abdomen black, dingy 

 testaceous at the base, with four pale testaceous bands, and 



