June, I9I2.] Townsend: MuscoiD Flies. 117 



claw is in each case proportional to the size of the rod which forms its 

 base. The cephalopharyngeal skeleton is practically the same as in 

 Ph. montana. The egg, maggot, cephalic talon-clusters and cephalo- 

 pharyngeal skeleton are shown in Figs 220 to 223 of Contr. Th. 

 Knowl. Muse. Flies. 



Eutheresia monohammi, new genus and new species. 



Eutheresia gen. no\'. for Coquillett's Theresia analis — Ann. E. S. Am., 

 Vol. IV, p. 149. 



This is Theresia analis Coqt., attested by labels on specimens in the 

 U. S. X. M. collection, and so far as I can find a MSS. name. 

 Thirteen specimens issued, May 12 to July 17, 1894, from a section of 

 black spruce trunk filled with Monohammiis confiisor grubs. The 

 spruce was killed in August, 1893. (Xo. 6240? Bur. Ent.) This 

 form is allied to Sardioccra valida B. B. (det. Theresia tandrec by 

 Coqt.), from which it differs in the longer antennae and the narrowed 

 instead of widened-ovate abdomen. The first-stage maggot is very 

 similar to that of Sardioccra valida, but has the anal processes some- 

 what shorter, and the posterior edges of all the segments are thin and 

 sharply defined in profile, while those of segments X to XII in Sar- 

 dioccra are knot-like in profile. The integument of forward margin 

 of segments shows a broad band of microscopic rugulosities, most 

 conspicuous and abruptly defined on twelfth segment. The eggs are 

 very slender and pointed. Uterus is short and stout, with a capacity 

 of several hundreds, not running so high as capacity of Sardioccra, 

 which is upward of two thousand. The egg, maggot and cephalo- 

 pharyngeal skeleton are shown in Figs. 231 to 233 of Contr. Th. 

 Knowl. Muse. Flies, and the host-habits are outlined in that paper. 



Type, TD1788 (fly, and slide of eggs and maggots). Georgia 

 (C. V. R. Coll.). 



Other specimens are TD1415, and the rest of the above series from 

 Monohammiis. It is probable also that TD1417, labeled " Par. on 

 Cerambycid in chestnut; iss. May i, "88." is this species. 



Protodexia synthetica, new genus and new species. 

 TD354 — Ann. E. S. Am., Vol. IV, pp. 139 and 151. 



One female, collected by Mr. D. H. demons, Melrose Highlands, 



"vMass., August 14, 1908. This is a small brassy-pollinose fly with a 



Svrcophagid habitus. It seems to belong in or near the Sarcophaginze. 



