494 NOTES OX LACHXOSTERXA. 



end of the series. In the male the claspers are symmetrical, and are 



completely united, forming an entire circle. In the female, there is 

 only a single pair of corneous plates.* 



2. L. cribrosa Lee, 4 $ , 3 $ . 



All from Belfrage, Tex. (Coll. Riley.) Mr. Ulke has it from Ari- 

 zona. 



In this species the genitalia are somewhat more distinctive in both 

 sexes. In the male the claspers are still united along the front, but 

 bhey are more characteristic, and in the female the two pair of plates 

 arc distinct. 



In addition to the differences noted by Dr. Horn, the females in our 

 collection are rather stouter, more ventricose than the males. 



3. L. aequalis Lee. 



Not. in our collection; Dr. Horn says it was a unique from El Paso, , 

 Tex. It is not in his collection, and I have been unable to obtain any 

 sp 'cimen for study. 



4. L. farcta Lee. 



Several specimens of both sexes, all from Texas, and mostly collected 

 by Belfrage. (Coll. Riley and Smith.) Two of the specimens are dated 

 April 27. 



The genitalia of both sexes are figured, PI. xlviii, fig. 4. They dif- 

 fer in the male, in that the clampers are well separated in front though 

 not at all mobile, beiug completely united posteriorly. The sides are 

 perfectly symmetrical. Iu the female the upper plates are united, and 

 form a representative of the public process. 



5. L. torta Lee. 



There are 8 $ and 2 9 in the collection, all of them from Texas. (Coll. 

 Riley and J. B. Smith.) One specimen is marked Dallas, Tex. 



Mr. Ulke's collection contains a specimen from New Mexico ; Mr. 

 Schwarz has the species from Columbus, Tex., July 9. It seems a late 

 liver. 



The genitalia in both sexes are well developed. In the $ they are 

 symmetrical, united by a single point iu frout. The 9 has the superior 

 plates united, forming a pseudo-pubic process. 



No variations not recorded by Dr. Horn were observed. 



6. L. hamata Horn. 



Not in our collection. The type is a unique S from Texas, in the col- 

 lection of Dr. Horn. 



The genitalia, which Dr. Horn kindly allowed me to extract from the 

 $ , are symmetrical, somewhat more simple than in torta, but the clasp- 

 ers perfectly free iu front, though so united as to be immobile. 



7. L. latifrons Lee. 



A few specimens, mostly $ ,are in our collection, two of them donated 

 by .Mr. Schwarz, the others retained from lots received for determina- 



*A> this paper is intended to !>'• rather supplementary to Dr. Horn's Revision, none 

 of i he matters referred to by the Doctor will be touched upon here except where ueces- 

 bary. 



