1909] Descriptions of Some New Tachinidae 249 



Eumasicera gen. nov. 



, Differs from Sisyropa (as above outlined) as follows: Face 

 and front of female wider than one eye; cheeks and parafacials 

 wider, latter more rapidly widening above ; eyes thinly pubescent ; 

 palpi slender basally and abruptly widened and thickened 

 apically; scutellum with sparse erect hairs, abdomen with short 

 appressed bristles ; apical pair of scutellar bristles short ; antennae 

 inserted about on eye-middle. 



Reproductive habit, leaf oviposition. Type L. coccidella n. sp. 



Eumasicera coccidella n. sp. 



Length, 8 mm. Faintly brassy pollinose all over, except the face 

 which is silvery, and the first abdominal segment and legs which are 

 blackish. Palpi reddish-yellow. 



Type, No. 12624, U. S. N. M. 



One female. No. 1975, Gipsy Laboratory. 



The minute eggs of this species, obtained from the tubular 

 coiled uterus of the female, are black and show" a remarkable 

 light-colored subdentate fringe around the edge, the indentations 

 marking divisions in the fringe and the divisions exhibiting a 

 network structure shot with microscopic holes. The chorion of 

 the egg is reticulate after the ordinary plan. These eggs are 

 seen to be flattened and the chitinous chorion marks the superior 

 surface, while the surface attached to the leaf at time of ovi- 

 position is furnished with a thin membraneous unchitinized 



covenng. 



Rileyella gen. nov. 



Differs from Achaetoneitra as follows: Both sexes without 

 median macrochaetae on first and second abdominal segments 

 above, either discal or marginal. 



Type, Tachina aletiae Riley. 



Eucelatoria gen. nov. 



This genus is erected for Tachina {Masicera [Frontina]) 

 armigera Coqt. 



Orbital bristles present in female, absent in male. Eyes bare. 

 Abdomen with discal bristles on intermediate segments in male, 

 but without median bristles either marginal or discal on first two 

 segments in female. Median ventral carina present in female, 

 strongly developed, piercing sheath present. 



Reproductive habit, subcutaneous host-lar\iposition. 



