FLIES OF THE GENUS ODINIA — SABROSKY 235 



9. Odinia parvipunctata, new species 



Species with numerous small spots in the wing, and slender vibrissae. 



Male: Gray-black, the narrow anterior margin of front, lunule, 

 palpi, antennae except narrow black spot on outside of second an- 

 tennal segment and traces of brown on both inner and outer surfaces 

 of third segment, humeri, scutellum except central area of disk, and 

 halteres yellow; orbits and frontal triangle bright gray pollinose, fairly 

 distinct from the gray-black frontalia; upper half of face hght brown, 

 lower half and cheek silvery white on yellow ground color ; mesonotum 

 with large brown spots about bases of bristles and smaller ones about 

 hairs, plus a median, posteriorly bifurcate brown stripe, each fork 

 forming a large spot mesad to the fourth dorsocentral bristle and 

 sometimes extending back to the fifth dorsocentral, and a lateral 

 brown stripe extending from mesad of the humerus to the mesonotal 

 suture through the base of the presutural bristle, sometimes extending 

 caudad through the bases of the supraalar bristles; mesopleuron with 

 narrow, dark brown stripe just below notopleuron; lower rim of 

 mesopleuron and the sternopleuron dorsally broadly brown-black; 

 abdomen gray, with four moderately large, irregularly rounded 

 brown spots on each of terga 3 to 5, and most of the hairs and marginal 

 bristles set in small brown spots; legs approximately as described for 

 biguttata, but consistently darker, the fore coxae entirely black-brown, 

 the fore and hind femora likewise except at knees; wing (fig. 9) with 

 small brown spots, most of them surrounded by a whitish corona, the 

 spots smaller and paler than in wUliamsi or coronata. All bristles and 

 hairs black. 



Front relatively narrow, nearly square or very sUghtly broader 

 than long, the width at vertex 1.4-1.5 times the width of an eye and 

 barely over two-fifths the width of the head; frontalia and lower 

 orbits with a few fine hairs, but none between the posterior orbital 

 and vertical bristles; vibrissa long and slender, adjacent orbitals 

 slender and almost hairlike. Mid tibia with two strong, apical 

 ventral bristles, but the anterior somewhat shorter than the posterior; 

 hind femur incrassate, 2.15 times as long as the greatest diameter, 

 with one strong preapical antero ventral bristle; hind tibia subequal 

 in length to hind femur. 



Female: As described for the male, but the hind femur not as en- 

 larged, 2.33 times as long as broad. 



Length of body and of wing, 3.5 mm. 



Holotype male (USNM 64276), Guajataca Forest, Isabela, Puerto 

 Rico, July 22, 1955, at light, J. A. Ramos and J. Maldonado Capriles. 



