218 NOTES. 



SocietcT, Entomol. Italiana, Vol. I, p. 99. The fact that Mr. Walker 

 had not the slightest idea of the true characters of this family, is further 

 proved by his having described a true Blepltarocera as an Asynduhuii. 



19. Paltostoma. I will add to Dr. Schiner's description, that the 

 palpi are distinct; the posterior tibiae bear one long, slender spur- 

 ocelli large, distinct; eyes separated by a broad front, pubescent, facets 

 of the same size on the whole surface ; wings with a square anal angle, 

 like that of the other species of the family and unlike their represen- 

 tation on the figure in the Novara-volume. Altogether, the genus bears 

 out the character of the family, as drawn by Loew (Revision der 

 Biepharoceridae, p. 83). 



The two mexican specimens, which I have seen, are much smaller 

 than P. superbiens from South America, which I saw in Vienna, but 

 there is a great deal of analogy in the coloring of the two, and they 

 may possibly belong to the same species. In Turin I had no copy of 

 the Novara work at hand, in order to compare the description with 

 those specimens. 



20. Culex. In the British Museum I found the following typical 

 specimens of Mr. Walker's species: excitmts, one specimen, excnteitms 

 two, hnpatiens four ($2), inipiger two, implacabilis one, prorocmts two, 

 stimulans one, territans two, pretwrbans one. Many of them are un- 

 recognizable. Culex conterrens Walker, a fragment, is evidently ('. 

 ciliatits ; Culex sollicitans is C. taeniorhynchus. 



21. Anopheles. About the european species of this genus, compare 

 Loew, Dipterol. Beitrage I. 



22. Chironomidae. Mr. van der Wulp has made a particurar study 

 of this family and has introduced several new generic groups. Compare 

 his articles in the Tijdschr. Entom. Nederl. Ver. 1859, T. 2, 1, p. 311; 

 also 1. c. in 1874; but especially the chapter on Chironomidae in his 

 larger work: Diptera Neerlandica. 



23. Tanypus. There is a Monographia Tanypodum Sueciae by 

 Fries, 1823. 



24. Ceratopogon. J. Winnertz, Beitrag zur Kenntniss der Gatt. 

 Ceratopoyon, in the Linnaea Entomol., Vol. VI (1852', contains a mono- 

 graph of the european species, with remarkably fine plates. Unfortu- 

 nately, Mr. Winnertz did not subdivide the genus in smaller genera, 

 but left it, as it was, and still is, a congeries of heterogeneous forms. A 

 beginning of such a subdivision may be found in Westwood's Synopsis, 

 etc., p. 125; compare also Rondani, Prodr. I, p. 175, and v. d. Wulp, 

 Diptera Neerlandica. 



25. On the Tipulidae brevipalpi, compare my Monograph, in the 

 4 tl1 Volume of the Monographs of North American Diptera, published 

 by the Smithsonian Institution, in January 1869. 



For many years , I have made a particular study of the Tipulidae, 

 and of the brevipalpi especially. This study has enabled me to con- 

 tribute something towards a better distribution of this group, bu* *>as, 

 at the same time, thoroughly opened my eyes to the still remaining 

 blanks in that classification. For from concealing there defects, I have 



