INSECUTOR INSCITIVE MENSTRUUS Y 



consider the males of Dyar and Theobald as belonging to two 

 other species differing from Phoniomyia longirostris. Theo- 

 bald's male becomes a new species of the genus Dodecamyia. 

 A new generic as well as a specific name must be given to 

 Dyar's male, because there is no reason to keep it in the same 

 genus with the damaged female sent to Theobald in London. 

 We propose the name Dyarina tripartita, new genus, new 

 species, and consider it as the type species of the genus 

 Dyarina B.-W. & B., which replaces Dyar's genus Phoniomyia 

 (not Phoniomyia as used by Theobald). 



Theobald received a number of females from Trinidad. He 

 named them Phoniomyia trinidadensis, but later on identified 

 them with longirostris, because they were so similar to his 

 longirostris male, not to the female. We share his opinion as 

 to the probable identity and the name trinidadensis now be- 

 comes available for this male, the name of which should be 

 Dodecamyia trinidadensis Theobald. 



Dodecamyia trinidadensis Theobald has the mid tarsi in the 

 female and the male faintly white on the apical part of second 

 and distinctly white on all of the third and fourth joints. The 

 hind tarsi have the bases of the fourth and fifth joints white. 

 In the female type of Phoniomyia longirostris these parts are 

 missing. Theobald does not mention white on the legs in his 

 description. Dodecamyia trinidadensis comes near to Dodeca- 

 myia splendida B.-W. & B. ; but it has the white on the hind 

 legs only on the bases of the two last joints, not on the four 

 last as in splendida; it has no tuft of spines on the side piece 

 in the male genitalia and only two spines on the basal ap- 

 pendages. 



Dyar and Knab also describe mosquitoes from Trinidad 

 under the name Phoniomyia trinidadensis. The genitalia of 

 this species are different from Dodecam,yia trinidadensis 

 Theobald, and place their males in Dyarina B.-W. & B. There 

 remains the possibility that the females from Trinidad Theo- 

 bald described as Phoniomyia trinidadensis really belonged to 

 this species. However, the mesonotum of this species is dull 

 gray brown, the scutellum silvery. The mesonotum of Theo- 



