from the State of Vera Cruz. 283 



new species it contains, but for the light it throws on the 

 natural history of a number of those described bj Smith, 

 Cresson, and others. At the present time only descriptions 

 are offered; but a future paper will contain the determination 

 of the plants, with lists of species visiting them, and various 

 remarks on the bee-fauna of Vera Cruz. 



The two localities cited — San Rafael and Paso de Telaya — 

 are only about two miles apart, both on the north bank of 

 the Eio Nautla, not over 30 to 40 feet above sea-level. San 

 Rafael is about 4 or 5 miles from the coast in a straight line 

 and about 75 miles north of Jalapa by road. From Vera 

 Cruz to the mouth of the Rio Nautla is about 70 miles. 

 Coffee, vanilla, coconut, and cacao do well, but mangoes do 

 not ripen well. 



(1) CalUopsis bidentts, sp. n. 



$ . Length 6 millim. Entirely black, the mandibles only 

 rufescent towards tips, very shiny ; face densely punctured ; 

 thorax closely punctured in front, much more sparsely on 

 middle, extreme base of metathorax minutely roughened. 

 Wings smoky, nervures and stigma dark vandyke-brown. 

 Tegulffi shining, dark testaceous. 



($ . Almost or quite as long, but more slender. Patch on 

 upper median margin of labrum, clypeus (except the two 

 black dots and the anterior edge), lateral face-marks, tubercles 

 (with a dark dot), knees, anterior tibiae in front, and the tarsi 

 more or less, reddish yellow, probably yellow turned reddish 

 by cyanide. The lateral face-marks are narrow, triangular, 

 pointed above, not quite reaching level of antenna, but 

 ending abruptly below at or near the level of theclypeal dots. 



5 ? , 3 (J, k^an Rafael, March 14, 18, and 23; on flowers 

 of Bideris and another composite. Paso de Telaya ; one ^ , 

 April 8, on a composite. 



This species is of Nearctic affinities, being closely allied to 

 those which frequent Composit^e in the United States. It 

 differs : — 



(a) From C. margaritensis by being a little larger, the 

 flagellum not testaceous beneath, apical margins of abdominal 

 segments not testaceous. 



[h) From G. alhitarsts ? at once by the darkened wings, 

 the marginal cell more narrowly and not at all obliquely 

 truncate, and in the first recurrent nervure joining the second 

 submarginal cell one Mfth of its length from its base ; .whereas 

 in albitarsis (a Colorado specimen identified by Mr. Fox) it 

 meets the transverso-cubital nervure. 



