AHX. 20 EEVISION OF THE GENUS WINTHEMIA — REINHAED 19 



(7) WINTHEMIA TEXANA, new species 



Male. — Front before triangle O.lTo and 0,2 of the head width in 

 the two specimens, not very prominent below ; paraf rontals blackish 

 above becoming densely gray pollinose downward, moderately beset 

 ifvith short hairs outside of frontal bristles ; median stripe brownish 

 black, exceeding the paraf rontal width on entire length; verticals 

 (inner pair) present moderately developed; f rontals about 12 in 

 number, directed inward and extending almost to apex of second 

 antennal joint, the uppermost bristles smaller situated before the 

 triangle; antennae hardly three-fourths as long as face, black, apex 

 of second joint and base of third tinged with red, second joint three- 

 fifths the length of third ; arista shorter than antennae, thickened on 

 basal fourth and very slender beyond, penultimate joint short; face 

 cinereous pollinose, the sides narrow, clothed with longish black hairs ; 

 vibrissae slightly above the front edge of mouth ; palpi yellow inf us- 

 cated basally, slender, bearing numerous black hairs; cheeks gray 

 pollinose, covered with fine hairs, in profile about one-seventh the 

 eye height ; back of head thickly pale pilose. 



Thorax black, gray pollinose ; mesonotum subshining showing five 

 poorly defined black stripes when viewed from behind; scutellum 

 red except on narrow basal margin, covered with uniform thin gray 

 pollen; calypters opaque, white. 



Abdomen broadly red on sides, this color beginning at middle of 

 first segment and extending without interruption to the apex of the 

 fourth, only a broad median dorsal and ventral stripe expanding on 

 first segment black in ground color; last three segments with pale- 

 3'ellow or grayish pollen, which on the intermediate segments is 

 dense near base becoming thinner behind but extending almost to the 

 posterior margin of each; fourth with the pollen confined to the 

 basal half ; a narrow dark median stripe present enlarged and form- 

 ing a roundish spot on second segment; hairs except on anal segment 

 depressed; no median marginal bristles on two basal segments; 

 third with a marginal row of about 10; fourth with a marginal row 

 and irregular placed bristles in front ; venter sparsely and uniformly 

 haired; inner genital forceps a little longer than usual, tapering 

 uniformly from base outward to the moderately incised apex; outer 

 forceps shorter than inner ones, not at all tapering outward, the tips 

 broad or subtruncate, bearing numerous long black outwardly di- 

 rected hairs on the sides; fifth sternite broadly and deeply incised, 

 the inner margins of lobes blackish beset with long slender hairs. 



Legs black; mid tibiae with two median anterior bristles; hind 

 tibiae thickly and evenly ciliate; claws and pulvilli elongate. 



Wings gray hyaline ; venation as usual ; third vein with one or two 

 hairs at base; costal spine minute. 



