. INSECUTOR INSCITI^ MENSTRUUS 19 



below, but little higher than broad, the outer bowed edge 

 of facialia with minute bristles half way up ; vibrissae inserted 

 distinctly above the oral margin, the epistoma appreciably con- 

 stricted by the vibrissal angles. Third antennal joint about 

 twice the length of the rather elongate second. Only three 

 postsuturals, only two preacrostichals and one postacrostichal ; 

 three sternopleurals ; second abdominal segment with closely- 

 set marginal row of short appressed bristles, third segment 

 with marginal row of erect short ones, anal segment with only 

 row of erect short microchaetae representing the usual marginal 

 bristles. Front tarsi slender; the front claws much shorter, 

 weaker and more curved than the others. Third vein with 

 four or five bristles at base reaching nearly halfway to small 

 cross- vein, strongly bowed upward on distal half. 



Protodcxia synthctica Townsend. 



Length of body, 6 mm.; of wing, 4.75 mm. One female, 

 Melrose Highlands, Massachusetts, August 14, 1908 (D. H. 

 demons). 



Blackish, pale golden pollinose all over, the parafrontals and 

 para facials more deeply golden, the occiput ashy. Three fairly 

 distinct vittae extending over thorax and abdomen. Legs 

 thickly pollinose, except tarsi which are deep black. Wings 

 clear. Tegulae whitish, with yellowish margins. Palpi and 

 most of antennae light rufous. Frontalia brown. 



Holotype, No. 19476, U. S. Nat. Mus. TD354. 



Eubrachycoma, new genus. 



Genotype, Brachycoma apicalis Coquillett, 1897, Rev. Tach. 

 13L 



Differs from Brachicoma as follows: Male. Parafacials 

 finely hairy, the hairs not disposed in rows. Palpi not appre- 

 ciably enlarged apically. Cheeks about one-half of eye-height. 

 About 16 bristles on hind margin of third abdominal segment. 

 Scutellar bristles not so strong; abdomen rather more hairy. 

 Claws very strongly elongate. Hind crossvein not quite paral- 

 lel with apical crossvein, not at all in line with same. Vibrissae 

 on or close to oral margin. 



The holotype is a male from Connecticut. 



