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190

(1837-1884)
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190

et muscuhis abductor graciliores, tamen fere ut in femina
directi; musculus adductor obliquus deest.

Lobi maxillarum graciliores, angustiores, ad apicem versus
paulum angustati, latere interiore per totam longitudinem
per-paulum concavo, margine superiore pius [minusve membranaceo,
latere exteriore dentibus nullis, apicis formå variabili.

Tabanus (et gen. al. vide p. 91—92).

Facies cum epistomate subplana, rarissime convexiuscula.

Rostrum capite fere semper brevius, rarissime caput
lon-gitudine æquans, sat crassum, perpendiculare.

Mandibulæ (feminarum) margine exteriore edentulo,
margine interiore ad apicem versus serrato, dentibus omnibus
minimis, retro directis.

Labium haustello paulo longius: articulus primus utrin
-que membranaceus, scuto oblongo, cornibus longis; labella
dimidia ferme partern longitudinis labii explentia, inflata;
lamina articuli secundi parva, oblonga; lamina propria labelli
subquadrata, in processum linearem, sursum directum,
excur-rens, in angulo labelli sita et cum cornu scuti conjuncta;
lamina lateralis labelli sat parva, oblonga, in latere medio
sita, obliqua; lamina intermedia labellorum oblonga, triangula,
alte carinata, cum apice fulcri articulata; stili thecæ in apice
oblique truncati, cum fulcris labellorum articulati.

Chrysops (et gen. al. vide p. 93—94).

Facies cum epistomate valde fornicata.

Rostrum capite vix brevius, gracilius, fere perpendiculare.

Mandibulæ feminarum margine exteriore edentulo, margine
interiore ad apicem versus serrato, dentibus 12-15
exteriori-bus majoribus, reliquis perminutis.

Labium fere ut in Tabano constructum, tamen longius
atque gracilius.

Pangonia.

Facies cum epistomate convexa.

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