INSECUTOR INSCITI^ MENSTRUUS 131 



The larvae occur in Bromeliaceae in Trinidad, as fully de- 

 scribed in the monograph. I have captured specimens from 

 Surinam which appear to be this species (Mrs. J. Bonne- 

 Wepster). 



Wyeomyia fallax Bonne- Wepster & Bonne (PI. V, fig. 6). 

 IVyeomyia fallax Bonne- Wepster & Bonne, Ins. Ins. Mens., vii, 

 110, 1919. 



The larvae occur in Bromeliaceae in Surinam, as recorded by 

 Mrs. J. Bonne- Wepster and Dr. C. Bonne. 



Wyeomyia rolonca Dyar & Knab (PI. V, fig. 7). 



IVyeomyia rolonca Dyar & Knab, Proc. Ent. Soc. Wash., xi, 

 173, 1910, 



The larvae occur in Bromeliaceae in Panama, collected by 

 Mr. A. H. Jennings. 



Wyeomyia roloncetta, new species (PI. V, fig. 16). 



Head with black scales with greenish reflection, without 

 white border to the eyes above ; prothoracic lobes darkly col- 

 ored like the mesonotum ; mid tarsi with the third joint marked 

 with white below, its base and the last two joints black, con- 

 trasting; hind tarsi faintly but largely white on the fifth joint 

 below, perhaps slight traces of white at the bases of the pre- 

 ceding joints ; wing-scales narrowly ligulate, those on the forks 

 of the second vein becoming a little broader toward the tip 

 of the wing. 



Genitalia. Clasp filament with the tip enlarged, bud-shaped, 

 without lateral arms, the spine and seta of the long arm being 

 borne on one side of the enlargement, a slight irregularity on 

 the side indicating the short arm ; tip pointed, with fine setae 

 on one side reaching nearly to tip ; central core large, nearly 

 reaching tip, pilose ; median row of setae reduced to two. Side 

 pieces with the tips attenuated and downcurved with three long 

 hairs below. Harpes and unci well-developed, normal. 



Type, male, No. 32027, U. S. Nat. Mus. ; Porto Pello, Pan- 

 ama, March 5, 1908, bred from a Bromelia growing on a tree 

 in old Fort San Felipe (A. H. Jennings). 



