40 THOMAS SxVY FOUNDATION 



No. 9. Sarcophagula occidua Fabr. 



Fabricius, Ent. Syst , iv. 315, 1794; Syst. Antl, 288, 1805 



(both Musca). — West Indies. 

 Wiedemann, Auss. Zweifl. Ins., ii, 368, 1830 (Sarcoph- 



aga), type redescribed. 

 Van der Wulp, Biologia, Dipt., ii, 289, pi. vii, f. 12, 1896 



{imhecilla, canuta and tenuis). — Mexico. 

 Williston, Trans. Ent. Soc. Lond., 1896, 361, pi. xii, f. 



120 bis (Sarcophilodes puclla). — St. Vincent, W. I. 

 Coquillett, Proc. U. S. N. M., xxii, 254 (Sarcophaga), 



occurrence in Porto Rico. 

 A very small gray tropical species. 

 Male. Front .358 of head (average of five,— 

 .354, .354, .355, .359, .367) ; parafrontals and para- 

 facials gray, not silvery ; frontal stripe red anteriorly ; 

 antennae black, tip of second joint and base of third 

 reddish, the third reaches three-fonrths of the way to 

 the vibrissce; palpi and proboscis black, ordinary; 

 bucca about one-sixth the eyeheight. 



Thorax yellowish gray pollinose, with three 

 black stripes when viewed from behind; ps dc 3; ant 

 acr 0; presc very small; postalar 2, the outer very 

 small ; intra-alars 2 ; supra-alars 1 large and two min- 

 ute ; hum 2 ; intrahum 1 ; presutural 1 large ; stpl 2 ; 

 npl 2; scutellum with 2 marginals and 1 discal, no 

 apical s. 



Abdomen black with changeable yellowish-gray 

 pollen, which shows three shifting black stripes; first 

 segment with only marginal bristles; second with 

 some long depressed hairs along tlie margin, the mid- 

 dle pair of which are usually more erect and have the 

 size of small bristles; third with a row of 6; fourth 

 with a row of ten. 



Hypopygium black, opaque ; first segment large, 

 declivous, with a row of four bristles near tip ; second 

 segment bent forward, with two large ascending and 

 divergent bristles behind; forceps black, straight and 

 tapering to a slender point, not hooked nor divergent ; 

 accessory plate brown, very large and wide, with a 

 long slender tip which has several distinct barbs on 

 the front side; posterior clasper brown, with slender 



