8 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 10/ 



HYALODICTYON BUGABAE, new species 



Plate i, figures is, i6 



Dictyophara obtusifrons Distant, 1887, Biol. Centr.-Amer., Rhynch. Horn., 

 vol. I, p. 40, pi. 6, fig. 6. 



The shape of the vertex of this species recalls that of H. nodivena 

 (Walker), but its apex is more rounded and the lateroapical angles 

 are less prominent. The frons is relatively narrower and the curve of 

 the intermediate carinae at the base is different. The species is defi- 

 nitely smaller than H. nodivena. The type selected is a male taken 

 by Champion (Volcan de Chiriqui, 800-1,500 ft.). 



HYALODICTYON BRACHYRHINA (Walker) 

 Plate i, figure 17 

 Dictyophara brachyrhina Walker, 185 i. List Horn., vol. 2, p. 317. 



This species is superficially not unlike Mitrops dioxys (Walker) 

 ( =Nersia curviceps Stal), but naturally these species differ in generic 

 characters. The type of M. dioxys (Walker) has narrow^ elongated 

 third valvulae; H. brachyrhina (Walker) has broadly ovate third 

 valvulae three times as broad as in the former. In dorsal view the 

 vertex somewhat resembles that of Mitrops noctividus (L.) but in 

 profile it is quite flat, not upturned apically. The margins and carinae 

 in the type of brachyrhina are red. 



HYALODICTYON CENTRALI-AMERICANUM, new species 



Plate i, figures 13, 14 



Dictyophara brachyrhina Distant, 1887, Biol. Centr.-Amer., Rhynch. Horn., 

 vol. I, p. 40, pi. 6, fig. 5. 



Male. — Length, 8.0 mm. ; tegmen, lo.o mm. 



Vertex longer than broad (1.8: i) tapering distally, lateral angles 

 not prominent, apex broadly rounded. Frons longer than broad (3.4: 

 i) of subequal width throughout, lateral margins slightly sinuate. 



The type male was taken by G. C. Champion at Zapote, Guatemala. 



Genus TAOSA Distant 



Taosa Distant, 1906, Ann. Mag. Nat. Hist., ser. 7, vol. 18, p. 355. (Orthotype, 

 T. suturalis Germar, 1830, Thon's Ent. Arch., vol. 2, No. 2, p. 48.) 



