1883.] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. .519 



The sexual characters are still more simple than the preceding strik- 

 ingly resembling those of lanceolata in the male. The female has the 

 superior plates united along the median line, and forms the usual sub- 

 stitute for the pubic process. 



69. L. albina Burni. 



Not iu the Museum collection. From a borrowed specimen I studied 

 the female, in which the superior plates are distinct and not united. 



70. L. vetula Horn. 



We have one female specimen (coll. J. B. S.) from New Mexico. It 

 is a striking species, quite unlike anything else in our fauna or that is 

 known to me. I have been able to study the male in a lot of material 

 obtained for determination. Dr. Horn says of the female : " Claw, tooth 

 long and median.*' In the specimen before me the tooth is moderately 

 long but decidedly intra-median, especially on the fore tarsi. The 

 claspers of the male are here symmetrical and united in front. The fe- 

 male has the superior plates well developed and unusually prominent. 

 Mr. Ulke has the species from Arizona. 



71. L. rubiginosa Lee. 



There are 17 S and 2 9 in the Museum collection, all from Texas (coll. 

 C. V. E., J. B. S.). 



The specimens show no variation, except in size. The series of longer 

 hairs along the elytral costse iu the female are very distinct and rec- 

 ognizable, even in some of the males, though never so prominently. 

 One specimen bears date April 20. 



The sexual characters of the male become still more simple, as a ref- 

 erence to the figure (71) will show. In the female the superior plates 

 are very short and united along the median line. 



72. L. parvidens Lee. 



There are four males in the Museum collection : Florida (coll. J. B. S.), 

 1 $ ; Georgia (coll. 0. V. R., J. B. S.), 3 5. Mr. Ulke has it also from 

 Virginia and the District of Columbia. Mr. Schwarz has it from Tampa, 

 Fla,, April 5-8. 



No variation appears in our specimens. The male characters differ 

 very distinctly from the forms immediately preceding, the claspers being 

 distinct, rather characteristic in form, and free iu front. The female 

 structures, on the other baud, are reduced to a minimum, only the in- 

 ferior plates remaining distinct. 



73. L. submucida Lee. 



There are 33 S and 22 9 in the Museum collection, all from Texas (coll. 

 C. V. It., J. B. S.). Except a slight variation in size there is absolutely 

 no variation. Dates are on two specimens — June G and June 10. 



The sexual characters are again more marked in this species. In the 

 male the clasper, while symmetrical, is distinctive, and quite strongly 

 modified. In the female both plates are very distinct and well charac- 

 terized. There is no pubic process. 



