en
very minutely punctured; thorax with a stripe of cinereous tomentum;
posterior tarsi white; wings blackish, veins black. Length of the body 3
lines; of the wings 5 lines.

Gen. OBRAPA, n. g.

_Foem. Corpus_ breve, latum, crassum, convexum. _Caput_ transversum,
thorace angustius. _Antennae_ breves; articulus tertius rotundus; arista
apicalis, gracilis, setiformis. _Thorax_ sutura transversa bene
determinata. _Abdomen_ transversum, thorace paullo latius, valde
brevius. _Pedes_ breviusculi, validi; antici subdilatati. _Alae_
mediocres.

_Female._ Body short, broad, thick, convex. Head transverse, narrower
than the thorax. Antennae short; third joint round; arista apical,
slender, setiform. Thorax with the transverse suture very distinct.
Scutellum large, prominent, with a marginal suture. Abdomen transverse,
a little broader than the thorax, and not more than half its length.
Legs stout, rather short, the fore pair slightly dilated. Wings
moderately broad, veins rather irregular; discal areolet large,
quadrilateral; externo-medial veins, subanal vein, and anal vein very
slight; subanal vein and anal vein united at some distance from the
border.

19. OBRAPA PERILAMPOIDES, n. s. _Foem._ Atra, nitens, subtilissime
punctata, capite glabro, antennis piceis, tarsis posterioribus albidis,
alis limpidis, venis albidis basi nigris, halteribus niveis.

_Female._ Deep black, shining, very minutely punctured; head smooth;
antennae piceous; posterior tarsi whitish, with black tips; wings limpid,
veins whitish, black towards the base; halteres snow-white. Length of
the body 2-1/2 lines; of the wings 5 lines.

20. OBRAPA CELYPHOIDES, n. s. _Foem._ Atra, nitens, subtilissime
punctata, capite glabro, antennis piceis, tarsis albidis, alis
nigro-cinereis, venis nigris, halteribus niveis.

_Female._ Deep black, very minutely punctured. Head smooth; antennae
piceous; tarsi whitish; wings blackish cinereous, veins black; halteres
snow-white. Length of the body 2 lines; of the wings 4 lines.

Fam. TABANIDAE, _Leach_.

Gen. TABANUS, _Linn._

21. TABANUS RECUSANS, n. s. _Foem._ Piceus, cinereo-subtomentosus, callo
nigro angusto, antennis rufis apice nigris, humeris rufescentibus,
abdomine basi glaucescente, tibiis obscure ferrugineis, alis
nigro-fuscis, apice margineque postico cinereis.

_Female._ Piceous, slightly covered with cinereous tomentum. Callus of
the head black, long, slender, entire; antennae red, black towards the