152 INSECUTOR INSCITI^ MENSTRUUS 



Pseudogymnosoma inflatum, new species. 



Length, 5.5 to 7 mm. Four males and one female, Benguella, 

 Angola, Africa (F. C. Wellman). 



Head black, with silvery maculations or areas. Thorax and 

 scutellum metallic violet. Abdomen yellowish to fulvous. Legs 

 and palpi blackish. Antennae blackish, the second joint more 

 or less tinged with rufous. Tegulse whitish, with smoky 

 tinge. Wings clear, with more or less distinct blackish along 

 costa in male. 



Graphomuscina, new genus. 



Genotype, Graphomuscina africana, new species. 



Venation of Muscina, but head in general and thoracic vittae 

 of Graphomya. Frontalia not separated by ocellar triangle. 

 Epistoma not so elongate as i-n Graphomya, and not so wide 

 nor sprung. Tegulse large. Only hypopleural hairs present. 



Graphomuscina africana, new species. 



Length, 7 mm. One female, Benguella, Angola, Africa 

 (F. C. Wellman). 



Head grayish, antennae and frontalia brown, palpi fulvous. 

 Thorax brownish, rufous on sides, with three heavy black 

 vittae. Scutellum, abdomen and legs brownish-rufous, the tarsi 

 brownish. Tegulae whitish. Wings clear. 



Rhinogastrophilus, new genus. 



Genotype, Oestrus nasalis Linne. 



Differs from Gasterophilus in entirely lacking the rudimen- 

 tary button-like palpi, as well as the proboscis tubercle. The 

 female has a sharp chitinous ovipositor, functionally distinct 

 from that of Gasterophilus. See Can. Ent., L, 246-248 (July, 

 1918). 



Loewioestrus, new genus. 



Genotype, Cephalomyia variolosa H. Loew, 18G3, Wien. Ent. 

 Monatschr., VH, 15. 



Differs from Oestrus by posterior crossvein being removed 

 almost its length from cubitus, the apical cell much more 



