218 Journal New York Entomological Society, t^'o'- >^-^iv. 



clypeus somewhat convex, area along lower margin not concaved ; 

 frontal carina much smaller ; eyes much larger and approximated 

 more or less above, producing a narrow vertex. Thorax with more 

 yellowish white hairs than in the other sex, especially on the ventral 

 surface where it is mixed with the black. Punctation of abdomen 

 much finer and closer throughout ; yellowish white hairs on the hind 

 margin dorsally of segments four and five mixed with some black, 

 otherwise pilosity as in female. Wings a little lighter than in other 

 sex. Tibial scale very reduced; a variable amount of yellowish hair 

 present on legs. 



Types. — Cresson's typical specimen labeled " Lecto-type 2620 " 

 " Tex " is in the Acad. Nat. Sc, Philadelphia, along with a male 

 labeled " Allo-type 2620 " " Tex " and a male and female paratype. 

 In the collection of the Museum of Comparative Zoology at Harvard 

 is a male and female labeled " Type 556 " " Dallas, Tex., Boll." In 

 the U. S. N. M. are two specimens, a male and a female, labeled 

 "Type No. 1792, U. S. N. M.," "Collection Belfrage." 



Distribution. — I have examined specimens taken at Dallas, Round 

 Mt. and Kerrville, Texas. 



This species seems to occur throughout the northern and central 

 part of Texas but I find no record of it in any other state. It is very 

 closely allied to Xylocopa virginica, which is also found in some 

 parts of Texas, though I find no record of it {virginica) occurring 

 in the same localities with texana. The females of tcxana and vir- 

 ginica resemble each other very much. Generally speaking, how- 

 ever, the predominant color of virginica is black, while that of tcxana 

 is green, with some blue present. This is a rather variable character, 

 though, for many specimens of the one species will approach those 

 of the other very closely in color. The frontal carina of tcxana is 

 larger and more prominent than that of any other species found in 

 the United States. The frontal carina of virginica is of medium size 

 in the specimens collected from the eastern states, but it seems to 

 increase in size on specimens taken from Texas, although it does not 

 attain the size and prominence that it does in tcxana. The white 

 pile present on the sides of segments five and six, and the few scat- 

 tered ones along the sides of the other segments found in tcxana do 

 not occur in virginica; this seems to be a rather constant character 

 for separating the species. 



