A New Species of Sarcophaga 

 from California 



(Coiilr'ihut'itin from Ihf Di'l'iirlmi-iit «/ I-.nliimolugy of the Miinlaiia State 

 College, linznnou, Montana) 



R. R. PARKER, BOZEVIAN, MOKTAKA 



Sarcophaija ralifornii a, n. sp. 



Holotype, male, collection of writer. 



Male. Head silvery gray pollinoise; third antennal segment two tii two and 

 one-half times length of second; only third vein bristly; tibiae not bearded; sub- 

 aiesotibial bristle present; anterior ventral row of bristles of middle femur present 

 on proximal half only; anterior acrostichals very weak, only anterior pairs at all 

 distinct; three pairs posterior dorsocentrals ; marginal bristles absent on second and 

 third abdominal segments; vestiture of third ventral plate erect; fourth ventral plate 

 similar to that of S. keliyi Aldruli; genital segments dull orange; first with marginal 

 bristles. 



Length, 8 to 10 mm. 



Head. Silver\' gray pollinose except that front may be sliglitly brassy. Viewed 

 from side parafrontals and gena; with dark reflections. Breadth of front at narrowest 

 part about one-half eye width; cheek height fully one-half that of eyes. Front 

 prominent; frontal vitta twice width of each parafrontal at narrowest part of front, 

 its sides parallel or but slightly converging backward and somewhat effaced below 

 ccellar triangle. Second antennal segment light colored at tip; third two or two and 

 one-half times length of second; arista plumose to beyond middle. Back of liead witli 

 three rows of black cilia behind eyes, otlierwise clothed with white hair. Cheek 

 vestiture black. Gena with irregularly placed bristles or bristle-like hairs on portion 

 nearest eye; some may be present on transverse impression. 



Clnelotaxy. Lateral verticals absent; vibrissae inserted a little above line of oral 

 margin; frontal rows of bristles extending below base of vitta and widely divergent, 

 onlv posterior pair strongly directed backward. 



Thorax. Metanotum clothed with short, reclinate bristles. Hairs covering an- 

 terior spiracle dark at base; those of anterior margin of posterior spiracle dark, those 

 of spiracular cover liglit at tips. Epaulets dark. 



li'inys. Bend of fourth vein sliglitly less than a right angle; anterior cross- 

 vein distinctly more basal than end of first longitudinal; third vein bristly; costal 

 spine vestigial; section III of costa longer than section V ; calypters whitish, fringed 

 witli white hair, posterior calypter large. 



Lcijs. Dark. Posterior femur clothed beneath with long hair that forms a beard 

 posteriorly; anterior face with three rows of bristles, the intermediate row weak, 

 bristles of lower row rather slender and obsctired by the hairy vestiture beneath; 

 posterior ventral row of bristles absent; til'ia \silli long vestiture beneath but not 

 breaded, with a single bristle on the distal portion of the anterior ventral face. An- 

 terior ventral row of bristles of middle femur ]iresent on proximal half onlv, posterior 

 ventral row represented by 'comb" with a few bristles on distal lialf and wllh long 

 hair proximally; submesotibial bristle present. 



