20 PEOCEEDINGS OP THE NATIONAL MUSEUM vol. 66 



35. SARCOPHAGA TRYONI Johnston and Teig 



Small sized, dull, from light yellowish-red to dark red. Posterior 

 cavity medium sized, elliptical, located entirely below with just the 

 upper edge touching the liorizontal axis; tubercles on the edge of 

 the cavity distinct, somewliat flattened laterally; there are three 

 pairs on the upper half of the cavity and two pairs on the lower 

 half. Below the cavity is a narrow ridge reaching from the lower 

 edge of the cavity to the anal opening. Each spiracular plate is 

 shining, deep reddish black, and with three narrow yellow slits 

 slightly curved, the first two slits convex to one another ; spiracular 

 plates are just barely separated at the upper, inner edge. Anal 

 opening small, depressed, with a small, conical tubercle on each side. 

 Anterior spiracles each have 23 small, yellow lobes with the basal 

 portion of the spiracle deep red. 



Length. 6.5 mm. ; diameter. 2.5 mm. 



One specimen labeled " 1501," one specimen without labels. Both 

 in collection of R. R. Parker. 



36. SARCOPHAGA DUX Thomson 



Large sized, dull, dark red. Posterior cavity large, deep, ellipti- 

 cal; located on but mostly below the horizontal axis; tubercles on 

 the edge of the cavity indistinct; laterally the cavity is deeply 

 notched. Each spiracular plate is subshining, reddish black, with 

 three well-defined lobes and three j^ellow slits, first two slits much 

 longer than the third; first two slits converge toward the base and 

 almost touch; spiracular plates separated by a space equal to about 

 half the width of one plate. At the lower edge of the cavity, in the 

 center, is a very short, narrow carina. Anal opening some distance 

 below the cavity, short, depressed; each side is a tubercle slightly 

 longer than its diameter; these tubercles are separated by a space 

 ecjual to about three and one-half times the length of one tubercle. 

 Anterior spiracles missing in this material. 



Length, 9 mm. ; diameter, 3.25 mm. 



Honolulu. Februar}' 5. 1P17. Reared from dead grubs; P. H. 

 Timberlake, collector. 



37. SARCOPHAGA ALDRICHI Parker 



Large, dull, red to black. Posterity cavity deep, medium-sized, 

 located centrally on the horizontal axis; edges of cavity slightly 

 wrinkled. Each spiracular plate is blackish, subshining and with 

 three narrow yellow slits; between the first and second slit is a short 

 yellow line which resembles a short slit; spiracular plates separated 

 by a space equal to about one half the width of one plate. Anal 

 opening distinct, located a short distance below the cavity; each 



