ART. 9 FLIES OF THE GENUS STYLOGASTER ALDRICH 7' 



4. Hind crossvein almost parallel with hind wing margin ; hind tibiae strongly 



annulate with white near tip (Mexico, Central America), 



ethiopa Townsend. 

 Hind crossvein nearly erect, hind tibiae not annulate with white (Panama). 



panamensls, new species. 



5. Second and third abdominal segments wholly yellow (Bolivia). 



abdominalis Krober. 

 Abdomen yellow with faint dark apical bands on all segments (New England 



to Texas) biannulata Say. 



Abdomen much darker 6. 



6. First abdominal segment with only pale bristles at sides 7. 



First abdominal segment with coarse black bristles at sides 8. 



7. Second segment of ovipositor snow white and with white hair on basal half 



or more (Panama) speciosa, new species. 



Second segment of ovipositor black on basal half; front wholly yellow on 

 anterior third or half ; fourth vein greatly bowed, joining third almost at 

 a right angle (Brazil) stylata Fabricius. 



8. Front uniform light reddisli brown in color except narrow sides ; ocellar 



triangle very short, hardly continuing beyond median ocellus (Panama). 



currani, new species. 



Front yellow on anterior edge, gradually becoming black upward ; ocellar 

 triangle equilateral, extending beyond median ocellus only about twice the 

 width of the latter (Mexico, Central America) stylosa Townsend. 



Front dark, at least above; ocellar triangle more acute anteriorly 9. 



9. Abdomen unusually short and broad ; third segment rather pale, with nar- 



row arcuate black crossband near middle which curves backward near 



sides (Dutch Guiana) breviventris, new species. 



Abdomen of ordinary form, not with such crossband 10. 



10. Second segment of ovipositor snow white except base (Panama). 



apicalis, new species. 

 Second segment of ovipositor not white 11. 



11. Hind tibia with distinct band of white ground color on penultimate fifth (a 



little obscured by dark hairs) (Panama) banksi, new species. 



Hind tibia not banded 12. 



12. The lateral black bristles of the first abdominal segment arise from a spot of 



dark ground color (Mexico to Central America) minuta Townsend. 



The lateral black bristles of the first abdominal segment arise from an area 

 of white groimd color (Central America) rectinervis, new species. 



STYLOGASTER STYLATA Fabricius 



Conops stylata Fabricius, Syst. Antliatorum, 1805, p. 177. 



Myopa stylata Wiedemann. Ausserourop. Zweifl. Insekten, vol. 2, 1830, 

 p. 243. 



Stylogaster stylata Macquart, Hist. Nat. Dipt., vol. 2, 1835, p. 39; Dip- 

 teres Exotiques, vol. 2, pt. 3, 1845, p. 174 (separate p. 17), pi. 2, 

 fig. 3. — RoEDE3t, Wien. Ent. Zeitung, vol. 11, 1891, p. 287. — Williston, 

 Kans. Univ. Quart., vol. 1, 1893, p. 120. — Townsend, Annals and Mag. 

 Nat. Hist., ser. 6. vol. 19, 1897, p. 24. — Krober, Entom. Mitteilungen, 

 vol. 3, 1914, p. 347; Arch. Naturgesch., vol. 83, 1917 (1919), p. 43. 



Stylogaster stylosa (part) Krober, Entom. Mitteilungen, vol. 3, 1914. 

 p. 347. 



Stylogaster biannulata var. argentina Krobek, Konowia, vol. 8, 1929, p. 174. 



