. Monographs of the Diptera of North America [microform]. Diptera; Insects; Diptères; Insectes. I' 241 ilKscriptioii irt fmiiid in the hijitlnn fxatiiiiifH II, 2, 122, only in tint latter it is riiiiil "Jiimlifn I'osi'KHiKUlii;.-'«riiit, is (U-idciit t'loni uiiHt Mr. Maeiiuart hiivs in /h'jii. cjriit. //, 2, 1-li, at tilt) top (if tliH jxik't'. All tlin iliaiaitiTrt btated liy Mr. Mau(jiuut am also those of J', ;/ironiin Fiibr., 80 Mactiuart's species cannot he distinguislieil from it. 14. portoricensis Mn'ij. A very inroniplete description of a fcniale (irst j^iveii i
. Monographs of the Diptera of North America [microform]. Diptera; Insects; Diptères; Insectes. I' 241 ilKscriptioii irt fmiiid in the hijitlnn fxatiiiiifH II, 2, 122, only in tint latter it is riiiiil "Jiimlifn I'osi'KHiKUlii;.-'«riiit, is (U-idciit t'loni uiiHt Mr. Maeiiuart hiivs in /h'jii. cjriit. //, 2, 1-li, at tilt) top (if tliH jxik't'. All tlin iliaiaitiTrt btated liy Mr. Mau(jiuut am also those of J', ;/ironiin Fiibr., 80 Mactiuart's species cannot he distinguislieil from it. 14. portoricensis Mn'ij. A very inroniplete description of a fcniale (irst j^iveii in till) '⢠Siiltts i) Jiiiif'iiii," and then repeated in the /tijil'''n^ /â¢.niiitiiics, J/, '2, 121. Mr. .Ma(:c|iiart au'ain mentions this sjH-cies in J)/))!, (.ml, Siijiiil. I, l:ii>, and furnisheH there a llgiire of tiie wing (tail, xi, tlic. 17). Tlie only (diaraeter eontained in the description nnd which may leail at once to the recognitiun of this spei'ies, is the at the hasis of the arista ; another character of this kind may perhaps he found in Macipiart's llgure of the winir, where tini anterior hranch of the fourth longitudinal vein is closely ajiproxi- mated to the margin of the wing. I know of no siiecies possessing these charactei's. 1.'). sipho Mocij. I have already remarked that the species, whidi Mr. Macqiiart has described under this name, is (juite ililt'enMit from tlio genuine siphu Say, and prohahly identical with /'. jiiciiin/iis, with whicli it will liave to ho united as a synonym. 10. incisuralis Mmij. Tlio description {JJijil. ixut. Suj)/!!. I, 120) has heeii drawn from a female ; in an observation, however, Mr. Mac- quart declares that )io possesses a male belonging to this female; the characters, however, wliicli ho furnishes render it very doubtful that they belong togetlier. I tliereforo take into account the de- scription of the female only. It belongs to the group of sjiecies which resemble by the picture of their wings
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectinsects, bookyear1864
