4 BULLETIN 31, UNITED STATES NATIONAL MUSEUM. 



Microdon fuscipennis. (Plate I, figs. 1,1a.) 



Ccralophi/a fiincijienni'^ yincqnart, Hist. NaT. Dipt..i, 483,3. 

 Microdon Agapenor Walker, List, etc., iii,539. 

 MisopMla fuscipennis Walker, List, etc., iv, 1157. 



ifa&i7fl/.— Virginia, Florida!,* Texas (O. S.). 



$ . Length, 6 to 8"""'. Head ferruginous red, clothed with yellowish 

 white pile; in protile gently gibbose on the lower part of the face. 

 Front broad, the distance from the ocelli to antenntc a little less than 

 the least distance between the eyes ; ocelli approximate. Antennae red, 

 elongate, the first joint considerably shorter than the two following to- 

 gether; second joint short; third joint a little longer than the first, ob- 

 tuse at the tip, brownish on the distal part. Thorax red, the dorsum 

 with three broad black stripes, the lateral ones abbreviated in front; 

 clothed with short, light yellow pile. Scutellum large, phiue, trapezoi- 

 dal in shape, the length of the distal border not as great as the sides ; 

 very distinctly emargiuate, the pile rather shorter than on the thorax. 

 Abdomen short, broad, globose, brownish red, the pile short, light yel- 

 low. Legs red, the femora, except the tip, and sometimes a ring on the 

 tibiae, and the hind metatarsi, black ; hind metatarsi longer than the re- 

 maining joints together, extraordinarily thickened and dilated. Wings 

 tinged with blackish, especially in front and along the cross-veins; the 

 sections of veins at outer part of first posterior and discal cells nearly 

 straight and rectangular, somewhat deflected inward. 



Tliree specimens, Virginia (T. Pergande), and Florida (Professor 

 Kiley). 



The color i)robably varies more or less from red to brownish red 

 throughout. I am not at all certain that this species is Macquart's 

 Ceratophyia fuscipennis, as there is a distinct emargination on the 

 border of the scutellum, the absence of which very character is that 

 upon which the genus Ceratophyia was based. 



Microdon globosus. (Plate I, fig, 2.) 



Mitlio glohosus Fabricius, Syst. Autl., 185,7. 



Microdon (jlohosus Wiedemanu, Auss. Zw. In8.,ii, 86, 11 (trauslation from Fabri- 

 cius) ; Packard, Guide, etc., 398, fig. 17; Lintner, 2nd Rep., 116, fig. 24. 

 Aphriiis <//o&osi<8 Macquart, Dipt. Exot., ii, 2, 13, 5 ; tab. i, fig. 4. 

 Dimeraspis podagra l^e^'VLMiii, Eiit. Mag. ,v, 373. 



Habitat — Atlantic States !, Michigan (Lintner). 



S ,9 . Length, 8 to 10'""^. Antennaj red, somewhat blackish at the 

 tip, the first joint a little shorter than the two following together ; 

 second joint not half as long as third ; third joint pointed at the tip. 

 Face thickly clothed with white pile; front in the male narrowed near 

 its middle so that the distance from the ocelli to the antennae is about 

 twice the width ; ocelli approximate ; front in female as wide as the 

 distance from ocelli to the autennte. The color of the head is red; in 

 profile the face is nearly parallel with the border of the eyes. Eyes 



* Habitats followed by an ! are given from specimens examined. 



