1888.] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 521 



between the few specimens of inepta and quercus. The female is as yet 

 unknown. 



The genital structure of the male is very distinctive, and more nearly 

 allied to ignava than quercus. The claspers are immobile, slender and 

 curved, not united in front. 



80. L. affabilis Horn. 



Wanting in the Museum collection; occurs in Kansas, whence Dr. 

 Horn had two males. From one of these the drawings were made. 

 The claspers are of a somewhat different type from those of the pre- 

 vious species, while still symmetrical and free in front It approaches 

 nearer in type to glabricula. 



81. L. clypeata Horn. 



Male and female from Mr. Schwarz. Enterprise, Fla., May 8-29. 



Both sexes of this have been examined. The claspers of the male 

 have a considerable resemblance, seen from the front, to affabilis. 

 They are, however, quite differently set on the teluai, and present a 

 very distinctive lateral view. The female is peculiar. The pubic proc- 

 ess is stout, quite long, irregularly subulate and acutely notched at 

 the tip. The superior plates are wanting. 



82. L. boops Horn. 



Male and female from Mr. Schwarz are in the collection. Crescent 

 City and Indian Rirer, Fla. The male organs have a strong resem- 

 blance to those of inepta, yet differing decidedly in detail. The length 

 of the claspers or their practical continuity with the telum are unique 

 features. The female organs are equally peculiar, yet perhaps merely 

 a development of the clypeata type. The form of the superior plates 

 is entirely unique, as is also their relative situation to the pubic process. 



83. L. ecostata Horn. 



Not in the Museum collection. I owe to Dr. Horn the privilege of 

 examining the male. The genital structure is here again quite unique. 

 The form of the claspers, and particularly their peculiar contiguity, are 

 distinctive. The female must be very interesting. It maybe a still 

 more exaggerated form of the type seen in boops. 



84. L. crinita Burm. 



Seventeen males are in the collection, all from Texas (coll. C. V. B., 

 J. B. S.). 



The species is very constant; little variation noted, except in size. 

 The greatest factor as to variability is in the length of the antennal 

 club of the male. Always very long, the tendency is to exaggeration, 

 becoming sometimes fully three times as long as the funiculus. 



The genitalia of the male are figured, and, like all in the present 

 group, the claspers are symmetrical and united in front, In all the 

 species the structure is very similar, small matters of detail only em- 

 phasizing the differences between them. The structures are small, and 



