4 o DIPTERA 



The cfs' and 9 s ' are so much alike they cannot be separated except by an examination of the 

 ungues or genitalia. 



Geographical distribution of species. — Five species are known, all occurring in South 

 America. 



i. 5. remipes. Wiedemann, Auss. Zweifi. Ins. Eur. Vol. I, p. 573 (1828) (Brazil, British Guiana). 



2. 5. nitidus, Theobald, Mon. Cube. Vol. 2. p. 347 (1901) (Brazil). 



3. S. longipes. Macquart, Syst. Antl. Vol. 4, p. 400 (1794) (Brazil, Guiana). — Plate 2, Fig. 8, 



locuhpes, Robineau-Desvoidy, Ess. Culic. (iS23). 

 Culex longipes, Macquart. 



4. 5. lutzii, Theobald. Mon. Culic. Vol. 3, p. 323 (igo3) (Brazil). 



5. S. albiprivus, Lutz, Ms. idem, Vol. 2, p. 323 (1903) (Brazil). 



14. Genus GOELDIA, Theobald 



Goeldia. Theobald, Mon. Culic. Vol. 3, p. 33o (1903). 



Characters. — Head clothed with flat scales; mesothorax with flat spindle-shaped scales and 

 larger narrow-curved ones, lanceolate in form before the scutellum ; scutellum with fiat scales ; meta- 

 notum with chaetae and squamae. Palpi in the $ nearly one-third the length of the proboscis, in the 9 

 quite small ; proboscis short and thick, not as long as the body. Wing scales dense and elongated, ending 

 asymmetrically. Cross-veins of q? like Culex. 



This genus differs from Sabethoides in its Culex-Yike venation. 



Geographical distribution of species. — A single species only known. 

 1. G.fluviatilis, Theobald, Mon. Culic. Vol. 3, p. 33i (igo3) (Brazil, British Guiana). 



15. Genus LIMATUS, Theobald 



Limatus. Theobald, Mon. Culic. Vol. 2, p. 349 (1901). 



Simondella. Laveran, C. r. Soc. Biol. Paris. Vol. 54, p. n58 (190/) (Laveran& Simond). 



Characters. — Head covered with flat scales. Thorax with large flat scales of two sizes, very 

 convex at their free ends; scutellum with dense flat scales; metanotum with chaetae and squamae. Palpi 

 minute in 9 an d cf ■ Proboscis in 9 °f moderate length, swollen apically. straight, in the o* elbowed 

 above the middle with dense scales standing out at the joint and apex. Wings with rather broad 

 elongate, more or less conical scales, the free end broad and convex, some slightly asymmetrical; in 

 the (jf the scales on the basal parts of the veins pedunculated: fork-cells long ; coss-veins as in Culex. 



This genus can at once be told by the elbowed and tufted proboscis in the q* and by the wing and 

 metanotal scale ornamentation. 



Geographical distribution of species. — Two species from Brazil known. 



1. L. durhamii, Theobald, Mon. Culic. Vol. 2. p. 35o, 9 ( I 9° I ) & Vol. 3, p. 333, rjf (igo3) (Brazil). 



2. L. curvirostris, Simond & Laveran, C. r. Soc. B ; ol. Vol. 5^vp. n58 (190/) (Rio de Janeiro) (1). 



POSITION UNCERTAIN 



16. Genus HODGESIA, Theobald 



Hodgesia. Theobald, Journ. Trop. Med. Jan. i5. (1904). 



Characters. — Head clothed with small flat scales, rather rounded apically and loosely applied 



(1) I cannot consult this paper. The species curvirostris may be identical with my DitrJiamii 



