METOPIA.—BAUMHAUERIA. 115 
1. Metopia perpendicularis, sp. n.,2. (Tab. III. figg. 18, head in profile; 
18 a, wing.) 
Greyish; face and sides of the front white; frontal band, four thoracic stripes, hind borders of the abdominal 
segments, antenn®, palpi, and legs black ; posterior cross-vein nearly perpendicular. 
Length 5:5 millim. 
Front in profile conical, broader than the eyes; frontal band blackish, much broader than the lateral portions , 
frontal bristles descending scarcely beneath the root of the antenne ; face retracted; bristles of the facial 
ridges mounting as far as the second antennal joint. Antenne as long as the face; second joint short; the 
third joint at least six times as long asthe second. Thorax grey, with four narrow black stripes, the outer 
stripes prolonged behind the transverse suture ; scutellum cinereous. Abdomen ovate; grey, with blackish 
reflections and black hind borders to the segments, sometimes blackish, with white reflecting spots, 
especially at the sides ; macrochste only on the hind margins of the segments. Hind tibie with several 
rather long bristles. Teguls whitish. Wings greyish-hyaline ; small cross-vein a little before the middle 
of the discal cell; curvation of the fourth vein forming a right angle and with a distinct appendage; apical 
cross-vein oblique, concave ; posterior cross-vein straight, nearly perpendicular, inserted somewhat beyond 
the middle between the small cross-vein and the curvation of the fourth vein. 
Hab. Mexico, Amula in Guerrero 6000 feet, Cuernavaca in Morelos (H. H. Smith). 
A female specimen from each locality. 
BAUMHAUERIA. 
Baumhaueria, Meigen, System. Beschr. europ. zweifliigl. Ins. vii. p. 251. 29 (1838). 
This genus is characterized by the bare and proportionately small eyes, the broad 
and prominent front, the long antenne with the arista thickened to near the tip, and 
the bristles on the facial ridges. In the collections before me there is a specimen 
agreeing in most of its characters with the European forms (B. gonieformis and B. ver- 
tiginosa), but it has the eyes larger, and descending much lower on the lateral part of 
the head, and the third antennal joint proportionately shorter; these differences, how- 
ever, are not of sufficient importance to justify the formation of a new genus. 
‘No species of Bawmhaueria has hitherto been recorded from Central America; but 
one from Wisconsin, North America, B. analis, has. been described by me in ‘ Tijdschrift 
voor Entomologie,’ x. p. 148. 
1. Baumhaueria discrepans, sp.n.,¢. (Tab. III. fig. 17, wing.) | 
Cinereous; thorax with obsolete dark stripes; abdomen with blackish reflections; antenne and legs black, the 
basal joints of the former and the palpi rufous. 
Length 6 millim. 
Head white, with grey reflections; front with a somewhat yellowish tint, distinctly broader than the eyes 
(less prominent than in the European species) ; frontal band narrower than the lateral portions; frontal 
bristles on each side descending (somewhat in a double row) as far as the end of the second antennal 
joint; face nearly perpendicular ; bristles along the facial ridges over their whole length; eyes descending 
to the vibrisse. Antenne a little shorter than the face; the basal joints rufous; the third joint black, 
four times as long as the second; arista short, thickened to near the tip, its penultimate joint rather 
distinct. Proboscis black; palpi small, cylindrical, pale rufous. Thorax and scutellum cinereous ; 
thoracic dorsum with four indistinct blackish stripes. Abdomen conical ; first segment short, black; the 
following segments cinereous, with blackish reflections, white front borders, and black hind margins; on 
g2 
