March, igiS.] PaRKER : A New SaRCOPHAGA, 29 



Length. — lo nun. 



Head. — Parafontals, gena: and transverse impression dark. Breadth of 

 front at narrowest part about one third eye width ; check height one third 

 that of eye. Front prominent ; frontal vitta at its narrowest part fully twice 

 the width of each parafontal, its sides almost parallel. Second antennal seg- 

 ment blackish, its prominent bristle more than one half length of arista; 

 third segment more than twice length of second ; arista plumose to tip (at 

 least on under side). Vestiture of back of head black except for some yel- 

 lowish hairs just below foramen. Cheek vestiture black and coarse. Gena 

 with a row of hairs or hair-like bristle near lower eye orbit (the two or three 

 lowermost in the holotype quite long). Palpi dark. 



Chsetotaxy. — Lateral verticals absent ; vibrissa inserted on line with oral 

 margin ; each row of frontals extends below base of vitta and diverges from 

 inner edge of gena. 



Thorax. — Mesonotum clothed with short, reclinate bristles. Spiracular 

 hairs dark, except that tips may be light colored. Epaulets blackish. 



Wings. — Bend of fourth vein a right angle ; anterior cross-vein more 

 basal than end of first longitudinal ; third vein with bristles ; costal spine 

 absent; sections III and V of costa about equal; calypters whitish, fringed 

 with white hair. 



Legs.— Dark, vestiture short. Anterior face of posterior femur with 

 three rows of bristles, those of intermediate row few and present on proximal 

 half only ; posterior face without ventral row of bristles ; femur cylindrical ; 

 tibia straight, anterior lateral surface with a single bristle : tarsus not shorter 

 than tibia. Anterior and posterior rows of bristles of middle femur present, 

 posterior present on proximal half only and the two proximal bristles stoutest, 

 anterior row extending slightly farther proximally : submesotibial bristle 

 absent, a single bristle on posterior surface (near medium dorsal ridge). 



Chsetotaxy. — Anterior dorsocentrals scarcely weaker than the two anterior 

 postsuturals, much longer than vestiture of prsescutum ; acrostichals present ; 

 inner presuturals absent : four pair posterior dorsocentrals, last two the 

 stronger; prescutellar acrostichals present: scutellar apicals present: three 

 sternopleurals ; lower sternopleura with bristles only. 



Abdomen. — Clothed above with short reclinate bristles, beneath with 

 longer, more erect hair. Vestiture of fourth ventral plate decumbent, with 

 long appressed marginal hairs. Posterior margin of fourth notum dull 

 orange. 



Chaetotaxy. — Second segment without marginal bristles, third with two. 



Genital Segments. — First dull orange, faintly yellowish polinose, sparse 

 hairy vestiture posteriorly', marginal bristles absent or very weak : second 

 polished, orange-colored, rotund, anteriorly with long slender bristles, pos- 

 teriorly with shorter hairy vestiture, anal area small. Forceps same color as 

 second segment ; base with long, curly haiis, and without upward prolonga- 

 tions ; in profile the prongs narrowed near tips, the latter blunt and approxi- 

 mated. 



