OF THE TABANID^ OF THE UNITED STATES. 433 



of the second and third posterior cells, and on the bifurcation of the third vein ; costal cell, 

 stigma and proximal half ol the fifth vein, brownish ferruginous, sometimes brownish ; 

 basal cells also somewhat infuscated ; extreme tips of the second vein and of the upper 

 branch of the third vein in some specimens slightly clouded with brown. Length, 21- 

 25 mm. 



Ilah. Florida; South Carolina; Georgia (Macq.) ; seems to be a common species (Sea 

 Islands, S. C, June 2d, B. P. Mann ; Haulover, Fla., March 16, Sand Point, Fla., March 21, 

 E. Schwarz ; Indian River, Fla., E. Palmer). I have seven female .specimens before me. 



This species is easily distinguished from the two preceding by the shape of the third 

 antennal joint, the upper angle of which is drawm out in a long point, the uniformly red or 

 reddish brown coloring of the legs, the more hyaline posterior half of the wings, the much 

 smaller white spots on the abdouien, etc. The shade of the brown on the body is not ira- 

 Hke that of T. americanus, which species also resembles 2\ ficscojmncfatus in the conspic- 

 uous white tufts of hair above the root of the wings, the color and shape of the antennne, 

 etc. The hairs on the cheeks and pleuroe of this species are very variable in coloring. 



T.fuscopunctatiis differs in many respects from the group of species (No. 1-11), among 

 which it is here placed, — in coloring and markings, in the shape of the third antennal joint 

 and in the coloring of the eyes. The latter, instead of having the two nearly parallel 

 green stripes, common to all those species, have a single narrow green stripe on purple 

 ground, the lower portion of the eyes being again green. 



Macquart describes a damaged specimen, and for this reason does not mention the spots 

 on the abdomen; the description of the antenna3, the comparison to T. ritjicornis (Syn. 

 T. americanus Forster), etc., leaves no doubt about the identification. 



5. Tabanus catenatus. 



Tabanus catenatus Walker, List, etc., I, p. 148. 



Female. Palpi pale reddish ; face pale yellowish white ; antennne pale red ; annulate 

 portion of the third joint neax-ly as long as the body of the joint, its upper angle sharp, 

 projecting, but not drawn out ; front yellowish gray, callus reddish brown, with a somewhat 

 spindle-shaped prolongation above. Thorax reddish brown, the usual longitudinal lines of 

 yellowish white pollen very distinct ; pleurte yellowish white or whitish yellow, clothed with 

 long hairs of the same color ; a short streak of Ijlack hair above the root of the wings. 

 Abdomen distinctly attenuated posteriorly, brown above, each segment with a narrow and 

 long white triangle in the middle ; sides of the abdomen margined with a yellowish white 

 pubescence; ground color of the venter brown, concealed under a dense microscopic whit- 

 ish pubescence ; incisures whitish. Legs reddish or brownish red, tarsi somewhat darker. 

 Wings slightly tinged with brownish, more distinctly pale reddish brown near the basis and 

 in the costal cell ; central crossveins, crossveins at the base of the second and third posterior 

 cells and the bifurcation of the third vein, more or less distinctly, although not very 

 strongly, clouded with brown ; the first posterior cell is not perceptibly coarctate. Length, 

 23-24 mm. 



Male. Head but little larger than that of the female, and but a little more convex ; 

 large and small facets distinctly sej^arated ; the large ones, however, not quite so large as in 

 other species. The abdomen usually a little paler brown than in the female. Length, 20- 

 21 mm. 



MEM0IB3 B03T. SOC. NAT. BIST. VOL. n. 109 



