74 



DIPTEKA. 



1. Spilomyia pallipes. 



Spilomyia pattipes, Bigot, Ann. Soc. Ent. Fr. 1883, p. 352 \ 

 Hab. Mexico l . 



2. Spilomyia pleuralis. 



Spilomyia pleuralis, Willist. Synopsis N.-Am. Syrphidse, p. 247 

 Hab. Mexico 1 . 



3. Spilomyia (Mixtemyia) ephippium. 



Miwtemyia ephipphim, Osten Sacken, Bnll. Buffalo Soc. iii. p. 70 1 ; Cat. Dipt. 2nd ed. p. 254, 

 note 255 2 . 



Spilomyia {Mioctemyia) ephippium, Willist. Synopsis N.-Am. Syrphidae, p. 249 3 . 

 Hab. Mexico 123 . 



MILESIA. 



Milesia, Latreille, Hist. Nat. Crust. et Ins. xiv. p. 361 (1805). 

 Sphixea, Rondani, Dipt. Ital. Prodr. ii. p. 68 (1857). 



1. Milesia pulchra, sp. n., 6 . (Tab. II. figg. U,<J; 11«, head in piofile ; 11 b, 

 head frorn in front ; 11 c, hind leg.) 



In structure, like M. ornata, Fabr. Vertical triangle elongate, golden-pollinose before the ocelli. Eace and 

 frontal triangle light opaqne yellow ; a small blackish spot just above the base of the antennse, and a 

 _^__black facial stripe, reaching about halfway to the antennae ; cheeks shining black. Antennse black ; 

 third joint brownish-red or reddish-brown. Mesonotum brownish-black, nearly opaque, with light yellow 

 opaque markings as follows : — a pair of narrow median stripes, gently divergent posteriorly, and 

 terminating acutely either in a transverse band in front of the scutellum, or near it, and united at the 

 suture on either side with a narrow transverse spot from the root of the wing ; in front, distinct from a 

 round spot on each humerus. Pleurae with two similarly coloured spots, as in M. ornata ; in addition, 

 behind them, there is a yellowish triangular spot, terminating acutely on the middle coxae. Scutellum 

 black, with a yellow border, as in M. ornata. Abdomen : a spot on each side of the first segment, and the 

 fourth segmeut, behind the yellow cross-band, shining metallic bluish-black ; first segment yellow on the 

 sides ; second segment opaque black, with a shining yellowish cross-band posteriorly, and an opaque 

 yellow one anteriorly : third segment similar to the second, the yellow side-spots with less rounded 

 inner ends, the shining band a little wider ; fourth segment with a broader yellow band in front, the 

 posterior margin of which is oblique and sinuous, opaque black in the interruption ; pile on the yellow parts 

 yollow, elsewhere black, longer than in M. ornata. Legs : femora reddish-yellow and black ; middle 

 tibias and tarsi wholly light yellow ; front tibiae yellow, black distally ; hind tibise black, with the base 

 yellow ; f ront and hind tarsi black. Wings browniah-yellow in front, posteriorly nearly hyaline toward 

 the base, clouded distally. 



Length 18-20 millim. 



Hab. Guatemala, Pumla and Senahu in Vera Paz (Chamjnon). 

 Three specimens 



CERIA. 



Ceria, Fabricius, Ent. Syst. iv. p. 277 (1794) (nec Scopoli, 1763). 

 Sphiximorpha, Uondani, Ann. Soc. Ent. Er. ii. p. 212 (1850). 



