June, 1914.] 
Diptera of Middle America. 
337 
Mei.anostoma Schiner. 
Melanostoma fenestratum Macquart. Three specimens from 
La Paz, Bolivia. 
Syrphus Fabricius. 
Syrphus bisinuatus Williston. Taken at Laguna, Guatemala. 
Syrphus poecilogaster Philippi. From Arequipa, Peru; La 
Paz, Bolivia and from Valparaiso, Chile. 
Syrphus similis Blanchard. From .Santiago, Chile. This 
species is very similar to S. ribesii, but the markings are paler and 
the wings are slightly fumose. 
Mesogramma Loew. 
Mesogramma basilaris Wiedemann. From Puerto Barrios 
and Los Annates, Guatemala and Boniato, Cuba. 
Mesogramma bidentata Giglio-Tos. From Puerto Barrios, 
Los Amates and Santa Lucia, Guatemala. 
Mesogramma ciliata Gigilo-Tos. From Los Amates, Guate¬ 
mala. 
Mesogramma confusa Schiner. From Los Amates, Guate¬ 
mala . 
Mesogramma diversa Giglio-Tos. From Los Amates, Guate¬ 
mala. 
Mesogramma duplicata Wiedemann. From Puerto Barrios 
and Los Amates, Guatemala. 
Mesogramma laciniosa Loew. From Gualan and Los Amates, 
Guatemala; San Pedro, Honduras, and Holguin and Bonioto, 
Cuba. 
Mesogramma linearis van der Wulp. From Los Amates, 
Guatemala and Boniato, Cuba. 
Mesogramma marginata Say. From Los Amates, Guatemala 
and Slidell, Louisana. 
Mesogramma polita Say. From Panzos, Gualan, and Puerto 
Barrios, Guatemala. 
Mesogramma rombica Giglio-Tos. From Los Amates, Guate¬ 
mala and Boniato, Cuba. 
Mesogramma saphridiceps Bigot. From Georgetown, British 
Guiana. 
Mesogramma subannulata Loew. From Boniato, Cuba and 
Los Amates and Puerto Barrios, Guatemala. 
Mesogramma variabilis van der Wulp. From Los Amates 
and Santa Lucia, Guatemala. 
SpHvEROPhoria St. Fargeau and Serville. 
Sphoerophoria picticauda Bigot. Numerous specimens from 
Los Amates, Guatemala and from San Pedro, Honduras. The 
San Pedro specimens were collected by E. B. Williamson. 
