CECIDOMYIA. 107 



verse veinlet situate beyond the middle of the subcostal vein ; second 

 branch of the anal vein curved to the hind border. Male. Antennae 

 twenty-six-jointed, longer by two-thirds than the body ; double joints 

 as long as their petioles. Fern. Antennae fourteen-jointed, rather longer 

 than the body. Oviduct short, with two round very hairy valves. 



Lives with C. acropJdla and C.pavida in the deformed tufts on 

 the top leaves of Fraxinus excelsior ; changes to a pupa in the 

 earth. 



97. marginata, n. Mas, testacea, antennis fuscescentibus cor- 

 pore longioribus, thoracis disco pallide fusco, alis sublimpidis, venis ni- 

 gricantibus, halteribus albidis, abdomine supra pallide fusco, lateribus 

 testaceis. Long. 1^; alar. 3 lin. 



Male. Testaceous. Antennce brownish, twelve-jointed?, moniliform, 

 verticillate-pilose, longer than the lody ; joints nearly round, about half 

 the length of their petioles, which are pale testaceous. Disc of the 

 thorax pale brown. Wings nearly limpid; veins blackish; subcostal 

 vein very much less than half the length of the wing ; cubital slightly 

 curved, ending at a short distance from the tip of the wing ; subanal 

 and first branch of the anal very slight ; second branch curved abruptly 

 and slightly obliquely to the hind border. Halteres whitish. Abdo- 

 men pale brown above, with a whitish testaceous stripe along each side. 

 Legs long, slender. 



Not common. (E.) 



98. fixa, n. Mas, testacea, capite nigro, antennis 14-articulatis ni- 

 gricantibus corpore vix brevioribus, thorace vittis tribus fulvis, alis sub- 

 limpidis, venis testaceis, halteribus pedibusque pallide testaceis. Long. 

 1 ; alar. 3 lin. 



Male. Testaceous. Head black. Antennae blackish, fourteen-jointed, 

 submoniliform, verticillate-pilose, nearly as long as the body ; joints 

 cylindrical, about twice the length of their petioles, which are testa- 

 ceous. Thorax with three pale tawny contiguous stripes. Wings 

 nearly limpid ; veins testaceous ; subcostal vein rather less than half the 

 length of the wing ; cubital very slightly curved, ending near the tip 

 of the wing ; subanal distinct ; first branch of the anal very slight, 

 running very near the subanal ; second branch curved very abruptly 

 and hardly obliquely to the hind border. Halteres and legs pale tes- 

 taceous, the latter long and slender. 



Not common. (E.) 



99. apicalis, n. Foem. testacea, capite supra antennis^Q nigris, 

 his 14-articulatis corpore brevioribus, thoracis disco fuscescente, alis 

 sublimpidis, venis fuscescentibus, halteribus albidis, pedibus pallide tes- 

 taceis. Long. 1 ; alar. 3| lin. 



Fern. Testaceous. Head above and antennae black. Antennae four- 

 teen-jointed, moniliform, verticillate-pilose, shorter than the body; joints 

 subelliptical, about thrice the length of their petioles. Disc of the 



