474 C. R. OSTEX SACKEN'S PRODROME 



T. duplex (List, etc., T, ji. 173, T. imiUtns; uninc clmnged, il)i(l., V, ji. 173; Hudson's Bay Ternlory).' I 



cannot iilentify it. 

 T. frontiiUs (List, etc., I, ]i. 17"2 ; Xova Scotia). Said to be allied to No. 48, T. affiais Kirby, but will 



be difficnlt to identify fi'oni the descriiition. 

 T'. //(/yq/'/vf^,'?' (List, etc., r, p. 181 ; Illinois). In tlie Biitish Mnseum a single very bad ami indistinct 



sjiecimen. The deserijition is absolutely unmeaning. 

 T. inrisas (Dijit. Saund., p. 20; Cape Breton). Unknown; the abdomen must be somewhat like that of T. 



lineolu. 

 T. intermedins (List, etc., I, p. 173 ; Hudson's Bay Ten-itory; male and female). Unknown. 

 T. leucomehis (List, etc., I, p. 175; Georgia). Description very unmeaning ; in coloring it seems to be 



like my T. socius, or like 7'. viciiiKs Macq. 

 7'. miitatus (Dijit. Saund., I, p. 23; United States). The description suggests T. costalls Wied., or some 



species closely resembling it, but larger. 

 T. patidus (List, etc., I, p. 175 ; Georgia). I do not know this species. 



T. proximus (List, etc., I, p. 147 ; Florida) is ten lines long; very jirobably described from an unrecog- 

 nizable specimen of some well known S]ieeies. 

 T. recedei.-s (List, etc., I, p. 147; Florida). Must be like my No. 5, T. ca/einiti/s, perhaps the same. 

 T. r/i/ofrater (Dipt. Saunders, I, p. 20 ; Georgia). Very incom[ilete description, perhaps my Xo. 13, 



7'. ii/ii r. 

 T. scitus (List, etc., I, ji. 181) comes nearest to my Xo. 42, T. arastes, on account of the structure of 



the antennrc; in other respects the descri|)tion is unmeaning. 

 T. triUgalHS (List, etc., V, p. 183 ; Arctic America); ajiparently a somewhat smaller specimen of No. 48, 



T. affiais Kirby. Tlie deseriptii.)n of antennw and l>alpi, and of tlie brownish coloring, excludes the 



synonymy of No. 49, T. socius. 



Additions to Part I of tde Prodeome of the TABAXiDiE of the United States. 



ChrysojJS jmdlciis (page 381). Three female specimens from Ft. Capron, Florida, April 

 11, 12 (collected by ]\Ie^srs. Hubbard and Schwartz), do not seem to differ from my other 

 specimens ; only the distal margin of the crossl)and of the wing is straighter, and not 

 slightly sinuate in the tliird posterior cell, as I find it in my typical specimens. 



Two females from Sag Harbor, Long Island (cauglit by myself in Jidy, 1875). Jtacc an 

 altogether hlach frontal callosltij ; the coloring of the body and wings is darker and more, 

 intense, and the outlines of the abdominal spots and tlie design of the wings are better 

 defined. In other respects the agreement with the typical specimens is perfect. 



Chri/sops morosits (page 389). Three females and a male from Florida (Cedar Keys, 

 June 4; Ft. Capron, April !) ; Indian River, April) do not show any trace of yellow abdom- 

 inal stripes, and agree in this respect with tlie specimens mentioned in Part I, p. 390. 

 I think now that such specimens belong to C. morosics, which would in this case occur 

 as often with as without yellow stripes on the abdomen. I also feel more inclined now 

 than before, to identify this species with C. liigens Wied. 



Clirijsops frifjidus, female (page 384). Varieties occur in which the red of the al)do- 

 men prevails at the expense of the black. An extreme case of this kind was communicated 

 to me by Mr. Dimmock, in which even the fecial callosities were reddish. In this speci- 

 men the second segment was altogether reddish, except a small subtriangnlar spot in the mid- 

 dle ; the two following segments were blackish along their anterior margin only ; the last 

 three segments, although black, were laterally and posteriorly margined with yellow. For 



