478 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [YoLY. 



second transverse cubital nervnre, the third siibmarginal cell narrowed 

 towards the marginal ; and by the following characters represented in 

 his figures : the marginal cell longer, and not appendiculate. His figure 

 shows that in regard to tlie first character he was mistaken, for he had 

 not extended the labium. The second character also should be rejected, 

 as the proportionate length of the joints in the maxillary palpi varies 

 specifically in AnthopJiora, and this cannot be considered a generic 

 character. The species floridana and miserabilis difier from both AntJio. 

 pliora an.d Smith's description of Sahropoda in the joints of the maxillary 

 palpi, the third joint being little shorter than the second, the succeeding 

 joints slender and each but a little shorter than the one i)receding it, 

 and the apical joint not "minute," but, like the fifth joint, slender and 

 slightly narrowed towards the base. In all the other characters, Antho- 

 phora floridana Smith agrees with Hcibropoda, and I refer it to that genus : 

 but some of the characters require modification. Some species of An- 

 tJiophora {simillima Cress, and montana Cress.) have the third submar- 

 ginal cell very slightly narrowed towards the marginal ; in floridana, 

 however, the third submarginal is narrowed fully one-third towards the 

 marginal. In floridana, the first recurrent nervure is usually received 

 just within the second submarginal cell, but sometimes unites with the 

 transverse nervure ; the marginal cell extends as far beyond the third 

 submarginal cell upon the marginal vein as the latter extends beyond 

 the stigma. The antennae of floridana i are nearly as long as the tho- 

 rax. In Clisodon terminalis usually, and in some species of Anthophora 

 rarely, the appendiculation of the marginal cell is obsolete. 



The following generic characters taken from floridana may be added : 

 second submarginal cell quadrate, not pointed at the base, or, when the 

 first recurrent nervure faUs short of the tip of the second submarginal 

 cell, very slightly pointed ; mandibles very unequally bidentate ; labrum 

 with the anterior margin rounded and not thickened nor deflexed, the 

 sides curved downwards continuously with the anterior margin, thus 

 giving to the upper face a subtriangular form ; last abdominal segment 

 of the female broad and with a broad triangular enclosure on the disk, 

 last segment of the male with a smooth unenclosed area on the disk. 

 The unpointed tip of the female abdomen gives to this genus a facies 

 distinct from that of AnthopJwra. 



In the female of Anthophora simillima Cress. 1 (but not in the male of 

 A. simillima\)j the anterior margin of the labru.m is rounded out as much 

 as in the male (but not the female) oi floridana, but the edge is thickened 

 and the upper face is quadrate. The male of Anthophora abrtipta Say 

 lias the labrum of a form peculiarly unlike that of any other species and 

 unlike that of the female ; it is transverse and with the anterior border 

 broadly emarginate, the emargination occupied by an obliquely deflexed 

 lobe, which is rounded out anteriorly and is entirely covered with a dense 

 tuft of erect pubescence. 



American type : Habeopoda floridana. 



Anthojihora floridana Smith, C. H. B. M. ii, 339. 



