48 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 7& 



brownish black, exceeding the parafrontal width except at anten- 

 nae; frontal bristles about 10 in number, extending slightly below- 

 base of third antennal joint; ocellars well developed; no orbitals; 

 verticals two pairs, strong; face gray pollinose, the sides grayish 

 yellow, narrow, bearing a median row of 6 to 8 short fine hairs, 

 inconspicuous; antennae black, third joint wider than parafacial, 

 two and one-half times as long as second; arista long, thickened on 

 basal fourth, with a short penultimate joint; palpi reddish yellow; 

 vibrissae situated on level with front edge of mouth ; cheeks thinly 

 gray pollinose, black-haired, in profile about one-ninth the eye 

 height; back of head clothed with moderately dense pale gray or 

 whitish hairs. 



Thorax black, gray pollinose, with four broad very distinct stripes 

 separated on entire length by pollen bands, the median one widest; 

 scutellum obscurely reddish on apical half, dusted with changeable 

 gray pollen; calypters opaque, white. 



Abdomen black in ground color, the sides obscurely tinged with 

 red, apical half of anal segment bright reddish yellow ; intermediate 

 segments gray pollinose on basal half or more, the pollen becoming 

 thinner posteriorly with the apices shining in certain views but 

 apparently subpollinose to the hind margin on each ; fourth segment 

 with denser gray pollen confined to the basal third above, without 

 any reflecting spots on either side of the median vitta which extends 

 forward interrupting the pollen on segments 3 and 2; hairs rather 

 sparse, depressed except on fourth segment; no median marginal 

 bristles on first segment; second with one pair, strong; third with a 

 marginal row of 8 or 10, large; fourth bearing a subdiscal and a 

 marginal row of smaller bristles ; genital segments yellow, small and 

 retracted ; genitalia not in position to examine. 



Legs moderately stout, black tinged with red; claws and pulvilli 

 elongate; mid tibiae with one stout anterior median bristle. 



Wings grayish hyaline but with an apparent brownish tinge all 

 over; rather narrow at base and much longer than the abdomen; 

 fourth vein with a sudden oblique bend, only slightly concave beyond 

 reaching costa well before exact wing tip ; third vein with two hairs 

 at base ; costal spine very minute. 



Length, Y mm. 



Type. — Male, in the American Museum of Natural History, frf)m 

 Porto Rico. 



Redescribed from a male specimen (paratype) collected at Ad- 

 juntos, Porto Rico, June 8-13, 1915 (Lutz and Mutchler), received 

 from C. H. Curran, to whom it is returned. 



Tachina elegans, also described from Cuba (female only), may 

 prove to be the opposite sex of the present species. I leave the ques- 



