728 NEW XOB.TH AMERICAN COLEOPTEEA—LINELL. 



,tioii; last segment broadly coiicaA^e. Fixed spur triangular, acute- 



exterior spur one-lialf longer, slender. The claspers are nnsynimetrieal' 



liiglily developed, associating the species with the hornii-nujosa group,' 



but they are still more twisted tLan in any previously described species! 



Lengtb, 25 mm. 



Type.— No. 570, U.S.N.M. One example, Shreveport, Louisiana: 

 collected by F. W. Mally. 



This species, the largest Lachnosternain our fauna, resembles in form 

 i. qniulrata, Smith, but is much larger. Las difierent clypeus and punc- 

 tuation, but thorax particularly distingnishes them, being subangulate 

 and crenulate in /.. (jrandior. 



LACHNOSTERNA RUGOSIOIDES, new species. 

 (Gronji fiisca-ni(/osa, Horu.) 

 Oblong, broader behind, moderately lobust, rufocastaneous, shining. 

 Anteun* 0-jointed. Clypeus densely and coarsely punctate, acutely 

 einarginate; margin narrowly retlexed. Front somewhat less densely, 

 coarsely punctate. Thorax widest at middle, obtusely angulate at 

 sides, narrowed at base, more obliquely narrowed in front; margin 

 slightly crenulate, sparsely ciliate; disk convex, moderately closely, 

 coarsely punctate; punctures umbilicate; the median line and small 

 spaces on each side smooth. Elytra finely punctate, rugulose; discal 

 costfe obsolete. Pygidium longer than in L. rugosa, convex, very 

 shining, sparsely and finely punctate. Metasternum densely punctate, 

 with sparse short hairs. Abdomen sparsely, obsoletely punctulate! 

 Claws very strongly curved, with a strong median tooth. 



,V,r /(..—Antenna! club very short. Abdomen flattened at middle; 

 penultimate segment with a straight, acutely elevated, overhanging' 

 transverse ridge at middle, and the posterior margin broadly and 

 deei)ly concave; last segment concave, asperately granulate; fixed 

 .spur very long, slender, fully equal in length to the exterior spur. 

 Chispers after the type of L. riigosa, but dilferently twisted, and tlie 

 extreme apices prolonged, acute, and recurved. 



Length, 18 mm. One example, collected by myself on Long Island 

 !New York. " ' 



Type.— No. 571, U.S.X.M. 



This species resembles superficially a small L. rugosa, but is abun- 

 dantly distinct by the characters above. 



LACHNOSTERNA MINOR, new species. 

 ((tfoup haUit, Horn.) 



Oblong, slightly broader behind, glabrous above, rufotestaceous, 

 shmmg; head and thorax darker. Clypeus acutely, but not deeply, 

 emaiginate, moderately closely, not coarsely, punctate; margin rather 

 narrowly reflexed. Front more densely punctate. Antennji^, 9 jointed. 

 Thorax convex, narrowed in front; sides regularly arcuate from base, 



