36 DIPTEKA. 



larger than in that species, although it is likewise equal in breadth to the thorax between the insertion 

 of the wings. Antenna; black; joints of the scapus comparatively long. Vertical triangle yellow ; face 

 brown, with a silvery pubescence ; a small spot under the antennse yellowish. Body metallic blue, the thorax 

 with a very distinct stripe of silvery pubescence in the middle, not reaching the scutellum ; pleurae and 

 pectus silvery-pubescent ; spines of the scutellum as long as itself, beset with hairs, red towards the tip. 

 Abdomen with a silvery pubescence on the venter only. Halteres with a yellow knob. Legs black ; first 

 joint of the tarsi yellowish or yellowish-white, the base of the second joint of the front pair slightly, of the 

 middle pair more distinctly, of the same colour. Wings brown, more saturate in the antero-proximal 

 region. 

 Length a little over 11 millim. 



Hob. Guatemala, Teleman in Vera Paz {Champion). A single male. 



Dr. Gerstaecker described only a single Cyphomyia with a distinct, long pubescence 

 on the eyes, C. pilosissima, 6 : Loew has C. marginata (Cuba) ; Bellardi, C. tomentosa, 

 Gerst., and C. similis, Bell., among the species with distinctly hairy eyes. If the identifi- 

 cation of C. tomentosa, Gerst., by Prof. Bellardi be correct, it would seem that in that 

 species the pubescence of the eyes is much more conspicuous in the male than in the 

 female. Schiner, in describing C. dispar, S $ , showed that this character may belong 

 to one sex only. All these species have hyaline or subhyaline wings, and therefore are 

 different from the above described male. It is therefore either a new species, or it may 

 belong to one of the females described as having glabrous eyes. 



ODONTOMYIA. 



Odontomyia, Meigen, Classific. &c. i. p. 128 (1804). 



l. Odontomyia tritseniata. 



Odontomyia tritceniata, Bellardi, Saggio &c. i. p. 38, t. 1. f. 17 . 



Hab. Mexico, Cuantla (de Saussure), Mexico city (Salle) x ; Guatemala, Duefias 

 (Champion). 



The description agrees well, except that the antenna? are brownish-yellow and not 

 green ; the thoracic dorsum is clothed with an appressed golden-yellow pubescence, 

 somewhat modifying the black ground-colour of the stripes ; the scutellum is armed with 

 two brownish-yellow spines; on each side of the ocellar black spot there is a pale 

 brownish one, filling out the interval between the ocellar spot and the eye ; similar 

 brown spots further down about the middle of the front, on each side of the central 

 furrow ; still paler, almost yellowish spots between the antenna- and the eyes, and on 

 the facial prominence; the discal cell emits three nearly equal veins; third vein 

 without branch. 



A single female. 



STRAT10MYIA. 



Stratiomys, Geoffroy, Hist, des Ins. ii. p. 475 (1764). 

 Stratiomyia, as amended by Macquart, Loew, &c. 



