Dyar and Knab New Species of Mosquitoes. 141 



Wyeomyia ochrura Dyar & Knab. 



This species, which we described from larvae from Santo Domingo, 

 Dominica and Trinidad, proves to be unusually widely spread. We have 

 the adults also from Salvador, Guatemala, Mexico and Jamaica, and both 

 larvae and adults from southern Florida, the latter collected in the leaves 

 of bromeliaceous plants by Mr. J. B. Van Duzee. Unlike most of the 

 Wyeomyia, it seems not to run to local forms, the Florida larvae even being 

 the same as the Trinidad ones. The adult is readily recognized by the 

 small white tip of scales on the prothoracic lobes, which are violaceous 

 brown centrally. 



GENUS PHONIOMYIA THEOBALD. 



This genus differs from Wyeomyia by the eyes being contiguous at the 

 vertex and in the greater length of the proboscis, which is not swollen at 

 tip. It will probably rank as a good genus, although not as sharply de- 

 lined on larval characters as the other genera of Sabethinae which we have 

 recognized. There is a distinct larval type represented by our figures 74 

 and 77 (Journ. N. Y. ent. soc., xiv, plate xvi, 1906). The adult of figure 

 74 we would now call Plioniomyia trinidadensis Theob., as the Brazilian 

 form, longirostris Theob., presents differential characters, as shown by a 

 specimen which we owe to the kindness of Dr. Lutz. The P. trinidadensis 

 adults, bred from our larvae, are typical Phoniomyia. The other species, 

 rig. 77, has a similar larva, but the single bred adult is a typical Wyeomyia, 

 with a short proboscis, swollen at tip. We are at present unable to decide 

 whether there is a lack of parallelism between these genera in adults and 

 larvae, or whether some error has occurred in the association of our 

 Wyeomyia avtocratica larvae and the single bred adult. 



Phoniomyia homotina sp. nov. 



Tarsi without any white; abdomen and legs blackish with a dark blue 

 sub-metallic reflection. A large species like P. magna Theobald, but differ 

 ing therefrom in the color of the body and legs. 



5 specimens, Port Limon, Costa Rica (F. Knab) ; Trece Aguas, Alta Vera 

 Paz, Guatemala, March and April (Schwarz and Barber). 



Type.C'dt. No. 9993, U. S. Nat. Mus. 



Phoniomyia trinidadensis Theobald. 



The male, previously undescribed, differs from the female in having the 

 penultimate joint of the middle tarsi with a distinct white ring. The spec 

 imen was bred in Trinidad by Mr. F. W. Urich. 



