1 86 DAVENPORT ACADEMY OF NATURAL SCIENCES. 



enlarged in the male, testaceous, often infuscated; hind femora pallid 

 or flavo-testaceous, on the upper half more or less obscurely bifasciate 

 with fuscous, the geniculation infuscated; hind tibiae blue, often more 

 or less pallid along the spiniferous margins, pallescent at base, with a 

 postgenicular fuscous dot posteriorly, the spines black with pallid bases, 

 lo-ii in number in the outer series. Extremity of male abdomen 

 clavate, considerably recurved, the supraanal plate subhastate with 

 acutangulate apex, broadly flaring sides and a rounded depression next 

 the apex with raised edges, and a distinct median sulcus terminating 

 at this depression and bounded by sharp ridges ; furcula consisting of 

 a pair of parallel minute denticulations, one on either side of the ridges 

 bounding the median sulcus of the underlying plate; cerci moderately 

 large, laminate, as broad at base as the subgenicular lobes of the hind 

 femora, narrowing to two-thirds that size just before the middle and 

 then expanding nearly as much to an elongate flap, which is a little 

 decurved and as much incurved, its apical half tapering and bluntly 

 rounded, reaching the tip of the supraanal plate; subgenital ])late 

 rather small, equal, almost as broad as long, apically a little compressed, 

 the apical margin very strongly rounded, not elevated, entire. 



Length of body, d' , i4-5 mm., V , 19.5 mm.; antenna;, ci" V , 6.5 

 mm.; tegmina, S' , 4 mm., V , 5 mm.; hind femora, c^, 9 mm., 9 , 

 1 1 mm. 



2 cf , 9 V . Wawona, Mariposa Co., California, August 1 ^, A. T. 

 Morse. 



Alleni Series. 



To this series, heretofore represented by only two species of moder- 

 ate size, from New Mexico, Dakota and Iowa, are now added two more, 

 of small size, from California, collected by Mr. A. P. Morse. They 

 agree closely together and are very different from the two previously 

 known. The species may be separated as follows: 



TABLE Ol' THE SPECIES IN THE ALLENI SERIES Ol' MKLANOPLUS. 



cji. Slout and inediiini sized species. Median carina of i)n)n()liim more or 

 less obscured on the prozona; hind margin ol pronotiun ohtusangulate: 

 tegmina as long as or longer than the pronotuin; liind tibia' generally red; 

 male cerci relatively stoiil and apically angulale. 

 /A. Tegmina twice as long as pronotuni; male cerci relatively long and 



narrow, fnlly three times as long as broad alleni Scudd. 



b'i. Tegmina of about the length of the pronotuni; male cerci broad and 

 relatively short, not more than twice as long as broad stiowi Scudd- 



