INSBCUTOR INSCITI^ MENSTRUUS 137 



Wyeomyia pseudopecten Howard, Dyar & Knab, Mbsq. No. & 

 Cent. Am. & W. I., ii, pi. 5, fig. 32, 1912. 



The larvae occur in the same habitat as the preceding in 

 Trinidad and Panama. I have also specimens from Peralta, 

 Costa Rica, March 25, 1910 (P. P. Calvert). 



Decamyia eloisa Howard, Dyar & Knab. 



Wyeomyia eloisa Howard, Dyar & Knab, Mosq. No. & Cent. Am. 



& W. I., ii, pi. 6, fig. 36, 1912. 

 Wyeomyia eloisa Howard, Dyar & Knab, Mosq. No. & Cent. Am. 

 & W. I., iii, 121, 1915. 



The larvae occur in the flowers of Calathea discolor in Pan- 

 ama. I have received the species also from Surinam (Mrs. J. 

 Bonne- Wepster). 



Genus CALLADIMYIA, new genus 



Type species : Wyeomyia pandora Dyar & Knab. 

 But a single species is known. The larvae live in the fluid in 

 the leaf -axils of Calladium. The species is widely distributed. 



Calladimyia melanocephala Dyar & Knab. 



Wyeomyia melanocephala Dyar & Knab, Proc. Biol. Soc. Wash., 



xix, 140, 1906. 

 Wyeomyia canfieldi Dyar & Knab, Journ. N. Y. Ent. Soc, xv, 



207, 1907. 

 Wyeomyia pandora Dyar & Knab, Smiths. Misc. Colls., Quart. 



iss., Iii, 261, 1909. 

 Wyeomyia pandora Howard, Dyar & Knab, Mosq. No. & Cent. 



Am. & W. I., ii, pi. 3, fig. 11, 1913. 

 Wyeomyia fauna Dyar & Knab, Ins. Ins. Mens., vii, 2, 1919. 



There is some variation in the amount of white on the tarsal 

 joints. In the single type of melanocephala, the white on the 

 mid tarsi occupies not quite the apical half of the second joint. 

 This is from Trinidad. In specimens from Rupununi, British 

 Guiana (K. S. Wise), somewhat over half of the joint is white. 

 In specimens from Paramaribo, Dutch Guiana (Mrs. Bonne- 

 Wepster), fully two-thirds of the second joint is white, as 

 occurs typically in canfieldi in Panama. In pandora the white 

 does not completely encircle the last joint of hind tarsi, as 

 stated, for even in the types, in the right light, a narrow line 



