36 
TRANSACTIONS OF THE TEXAS ACADEMY OF SCIENCE. 
out of 450 specimens. Begarding the hymenoptera, Mr. Ashmead writes 
that he was very much surprised to find a great preponderance of West 
Indian species among the parasites, and several of his own species only 
recently described from St. Vincent! There were, also, he adds, numer- 
ous specimens of a parasitic fig insect described by Mayr from Brazil! 
One of the ants, Eciton foreli Mayr, has been determined by Mr. Per- 
gande, who adds that the specimens belong to the most northerly form 
of that species, which is a widely distributed one in the American tropics. 
Apidae. — Professor Cockerell has worked over nearly all of the 
bees collected, one paper being already published by him, and an- 
other being in process of completion. His first paper appeared in 
the Annals and Magazine of Natural History (London) for 
October, 1896. It contains descriptions of thirteen new species. 
In the genus Augochlora — a Neotropical group of pretty green bees, 
some with crimson abdomen — 14 Mexican species are now known, 
including the San Bafael material. The latter contained 5 new species. 
Prof. Cockerell adds that only one species of Augochlora (A. pur a Say) 
is known at present from Hew Mexico; and only 3 from Texas, of which 
A. pur a is one. Some of the bees are closely allied to forms which occur 
in Brazil, hut Prof. Cockerell thought, at least in regard to those men- 
tioned in his first paper, that the bees of San Bafael showed more affin- 
ities with the Atlantic coast .fauna of the United States. He will, how- 
ever, in a forthcoming paper, give his full views on the subject. The 
San Bafael bees, so far as determined, are as follows: 
1. Prosopis azteca Cress, or n. sp. — On flowers of Ho. 34. July: 
2. Halictus arcuatus Boh. race or var. argemonis, Ckll. — On flowers 
of Argemone mexicana. April. H. arcuatus is an Illinois species. 
3. Halictus exiguus Smith. — On flowers of Ipomoea sp. Mch. Pecu- 
liar to Mexico. 
4. Halictus politus Smith. — On flowers of Solidago sp. and Ho. 22. 
Type locality is Oaxaca. 
5. Halictus pseudopectoralis Ckll. — On flowers of Bidens leucantha(?) 
Willd. March 8 to 30. Allied to U. S. species. 
6. Halictus pseudotegularis Ckll. — On flowers of Argemone mexi- 
cana. March 29. “Very near to the U. S. H. tegularis Boh/ 5 (Ckll.) 
7. 'Halictus townsendi Ckll. — On flowers of Bidens leucantha ( ?) 
Willd. March 8 to 23. “A very distinct species, allied to H. ligatus 
which frequents compositae in the U. S.” (Ckll.) 
8. Halictus sp. — On flowers of Cordia sp., prob. ferruginea. June. 
“Apparently very near to the U. S. H. obscurus Boh.; differs from de- 
scription only in having rufous tarsi.” (Ckll.) 
9. Augochlora aurifera Ckll. 
10. Augochlora townsendi Ckll. — On flowers of the Cordia. June. 
