18H8.] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 513 

 52. L. profunda Blanch. 



Not in the Museum collection. Dr. Horn says it occurs in Texas, and 

 Mr. Ulke Las it also from the District of Columbia, Virginia, and Loui- 

 siana, indicating a wide distribution. 



I have been able to study the genitalia of both sexes, and the fig- 

 ures will show how similar to, yet distinct from, Jcnochii the species is. 



53 L. rugosa Mels. 



Numerous specimens of both sexes are in the collection. New York 

 (coll J. B. S.), 2 $ ; Illinois (coll. Morrison), 5 5,59; Ohio (coll. C. V. R.), 

 1 $ j Kansas (coll. Morrison), 2 $ ; Nebraska (coll. C. V. 11,, J. B. S.),4 $ • 

 Montana (coll. J. B. S.), 1 $ ', Collinsburgh, La., April 12 (coll. C. V. R.), 

 IS. 



No variation not mentioned by Dr. Horn has been observed. The 

 variation in the ventral ridge of the male is marked, but does not change 

 its character. Mr. Schwarz has it, collected at Detroit, Mich., May 30, 

 and at Port Huron, Mich., June 5, nearly two mouths later than the 

 occurrence of the species in Louisiana. It is the most common of its 

 group and is easily recognized. 



The addition of hornii and biimpressa to this series of species from in. 

 ■fidelis to rugosa, has added material strongly emphasizing the relation- 

 ship to the fraterna group, and yet unique, too, in many characters. In 

 hornii, corrosa, hnochii, profunda, and rugosa we have an association so 

 definitely marked in genital structure of both sexes that concurrence 

 of other characters to form a close association in other respects arcnatu- 

 rally expected. There may be eventually a slight re-arrangement of the 

 order of the species here when larger series of some of the forms makes 

 their exact relation more certain. Mr. Schwarz suggests that some of 

 the species in this group may frequent conifers, and this would account 

 for their comparative rarity. 



54 L. hirsuta Kuocb. 



There are 7 S and 6 9 in the Museum collection. New York (coll. J. 

 B. S.), 5 5,59; District of Columbia (coll. J. B. S.), 1 9 ; North Caro- 

 lina (coll. J. B. S.), 2 $ . 



The series offers nothing of special interest. The species is not com- 

 mon, and for some reason seems never to be in handsome condition. 

 Both sexes have been examined and offer distinctive characters. In 

 the male the claspers are unsymmetrical, and introduce a somewhat 

 new type in the line of twisted processes to the inside. The figure 

 shows an upper, back view to better display the process. The female 

 lacks the superior plates; the pubic process, however, very distinct. 



The clothing of hair on this species is very variably distinct and usu- 

 ally quite irregularly placed. There is, however, a tendency to a some- 

 what linear arrangement along the cost*, without forming distinct 



' Proc. N. M. 88 33 ^^4*" 



