514 NOTES ON LACHNOSTEKNA. 



55. L. longispina sp. nov. 



Oblong, nearly parallel; ferruginous brown, feebly shining; sparsely 

 clothed with yellowish erect hairs, longer and more dense on the tho- 

 rax, shorter on' the elytra, where they form distinct rows on the costae 

 similar to those of hirticula. Head densely and coarsely punctured, 

 with moderately long hair; clypeus emarginate, the border moderately 

 reflexed. Thorax widest at middle, slightly narrowed at base, more at 

 apex, the margin feebly creuate, ciliate ; basal margin channelled exter- 

 nally : surface with coarse punctures moderately closely placed, with long 

 erect hairs. Ely tral punctures much finer than those of the thorax, less 

 impressed, denser, and somewhat rugulose; the hairs sparser and shorter 

 than on the thorax ; the discal costa3 not distinct, marked only by the 

 rows of longer hair. Pygidium of male sparsely and not deeply punc- 

 tate, not hairy. Metasternum densely punctured, the hairs yellow, 

 long, and dense. Claws arcuate ; a strong acute median tooth. 



Length, .68 inch, 17" ,m . 



Habitat. — South Carolina (Morrison) ; Grand Ledge, Mich., May 24 

 (Sch war/.). 



Male.— Autennal club a little longer than the stem. Abdomen 

 slightly flattened at middle, the penultimate segment at middle with a 

 transverse, arcuate, rugulose elevation, behind which is a concavity. 

 Last ventral flat. Inner spur of hind tibia fully as long and scarcely 

 stouter than the outer. 



Female. — Wanting. 



Three specimens of this form, which is perhaps confused with hirsuta 

 (with which it agrees in group characters) in collections, are before me, 

 all of them males. The South Carolina specimen is in the U. S. Na- 

 tional Museum, the others are in Mr. Schwarz's collection. I believe 

 Mr. Ulke also has a specimen, the locality of which is different from 

 either. 



The species is readily known by the almost equally long spurs of the 

 hind tibia and by the distinct lines of hair. The thoracic margin is 

 also very plainly, if feebly, creuate. 



The genitalia of the male only have been examined. The claspers 

 are dissimilar, and of quite a different form than in hirsuta, despite their 

 similarity in superficial habitus. 



56. L. diffinis B\auch=coma)is Horn (Burm). 



This species is not in the Museum collection. Dr. Horn had it from 

 Georgia, South Carolina, Florida. Among material determined by me 

 for Mr. Dury, of Cincinnati, Ohio, was a single male specimen, from 

 which I made the drawings of genitalia. The correction of the synonymy 

 is by Dr. Horn, and is based upon studies made during the doctor's 

 visit to Furope. For a somewhat uncommon species four synonyms 

 are rather a disproportionate share. 



In the structure of the claspers of the male there is a very great 



