CECIDOMYIDAE. 7 



salicifoliae 0. Sacken, Proc. Ent. Soc. Phil. VI, 2-20. — On Spirea 



scdicifolia. Canada. 

 salicis-aeni!,Miia Walsh, Proc. Ent. Soc. Phil. Ill 608; VI, 227. 

 salicis-coryloides Walsh, 1. c. Ill, 588; VI, 224. («)• 

 salicis-nodulus Walsh, 1. c. Ill, 599. 

 salicis-semeu Walsh, 1. c. Ill, IJ07 ; VI, 22n. 

 salicis-yerruca Walsh, 1. c. Ill, 606; VI, 226. 

 salicis-triticoidcs Walsh, I. c. Ill, 598; VI, 225. 

 salicis-hordoides Walsh, 1. c. Ill, 599. 



N.B. All tliese are willow-galls, produced by Cecidomyiap; tlie gall.'? semen 

 and aau'f/ma Mr. Walsh acknowledges later 1. c. Yl, 226 to be produced 

 by Acarus. 



saiig'ninolenta 0. Sacken, Monogr. etc. I, 192. — On Carya. 

 serotiiiae 0. Sacken, Trans. Amer. Entom. Soc. Ill: 346. — On Cerasus 



sirotino'. New York. 

 symiiietrica 0. Sacken, INIonogr. etc. I, 200. — On Quercus. 

 tubicola 0. Sacken, Monogr. etc. I, 192. - On Carya. [^). 

 tulipiforae 0. Sacken, Monogr. etc. I, 202. — On Liriodendron. 

 uniljellicola 0. Sacken, Trans. Amer. Ent. Soc III, 52 and 347. Among 



the umbels of Sanihucus racemosa in New York and New-Jersey. 

 iirnicola 0. Sacken, Canadian Eutomol. Nov. 1875. — On Uiiica gracilis; 



Trenton Falls N. Y. 

 vacciuii 0. Sacken, Monogr. I, 196. — On Vaccinimn; Distr. Columbia. 

 veiTUCicola 0. Sacken, Canadian Entoraol. Nov. 1875. — On Tilia 



americana, New England. 

 Titis-coryloides Walsh, Proc. Entom. Soc. Phil. Ill, 588; 1. c. VI, 224; 



Amer. Entomol. I, 107, figure 86 (figure of the gall); Riley, 5th 



Report, 116; Packard's Guide, 376, fig. 284. — On Vitis cordi folia 



and ni)aria. 

 Titis-poiiunii Walsh and Riley, Amer. Entomol. I, 106; fig. 85; Riley 



5tii Report, 114, with figure; the latter is reproduced in Packard's 



Guide, 378, f. 283. — On Vitis cordifoJia. 

 viticola Sacken, Monogr. I, 202. — On Vitis. The gall Vitis-lituus 



Riley, Amer. Ent. II, 28, t. 27; also 1. c. 113; also 5tiJ Report, 



118, is the same as viticola. 



Observation. In the Western Diptera, 192, 1 described galls of 

 Cecidomyiae which I observed on the following plants in Caliiornia. 

 Juniperus califcrnicus. 

 Lupinus albifroDS. 

 Audibertia sp. 

 Garrya fremontii. 

 Artemisia califcrnica. 

 Baccharis pilularis. 



Tritozyga. 



Loew, [Monographs etc. I, 178; 1862, Tab. I, f. 13. (Wing.) 

 The species is not described; it was from Distr. Cuhuul.ia. 



