272 J. A. G. REHN. 



ing in the much smaller size and very different coloration. The 

 species described by Walker* as E. arctata appears to belong to the 

 same group, but has the antennae as long as the body as well as of a 

 black color. The description is so imperfect that little can be done 

 with it. 



Size, medium ; form ovate Head with the interspace hetween tbe eyes equal 

 to that between the ocelli ; eyes strongly depressed posteriorly ; antennae exceed- 

 ing two-thirds the length of the body. Pronotum sub-pentagonal, the dorsum 

 plane and the lateral margins considerably depressed ; anterior margin truncate ; 

 posterior margin obtuse-angulate ; the greatest width posterior to the middle, 

 and twice as wide as the truncate anterior margin. Tegmina elongate, 

 wide, the costal and sutural margins being parallel for tho greater part of the 

 entire length ; apex with the sutural margin more emarginate than tbe costal ; 

 basal field equalling one-third of the tegmina in length, narrow ; discoidal field 

 with the veins longitudinally disposed ; anal sulcus but slightly sinuate, the anal 

 field being elongate, semi-ovoid in shape. Wings with the anterior field narrow, 

 costal veins eight in number, slight, not clavate ; anterior ulnar vein with a great 

 number of rami which extend almost to the base of the vein, and become almost 

 parallel to the main vein toward the apex. Abdominal segments with the lateral 

 angles produced into acute spinous processes. Supra-anal plate triangularly 

 produced, the apex narrowly and deeply fissate. Cerci depressed, acuminate, 

 and considerably exceeding the supra-anal plate in length. Subgenital plate 

 very broadly triangular, the apex sub-truncate, the emarginations close to the 

 bases of the cerci broad. Anterior femora with the internal inferior margin with 

 two to five median, one apical and one genicular spine ; tarsal joints not equalling 

 the femora in length, the metatarsus not as long as the terminal joint. Median 

 femora with three median spines on the internal and four on the external lower 

 margins; tarsal joints as long as the tibiae, but not equalling the femora, meta- 

 tarsus shorter than the other tarsal joints combined, and not quite twice the 

 length of the terminal joint ; the lower surface of all the joints, except the term- 

 inal joint and a small basal section of tbe metatarsi, with two longitudinal rows 

 of fine serrations. Posterior femora with three spines on each of the lower mar- 

 gins; tarsi about as long as the femora and about three-fifths the length of tbe 

 tibiae ; metatarsus equal to the other joints in length ; the whole length armed 

 as in the median tarsi, pulvilli small and apical. 



General color pale wood-brown, sprinkled with umber. Eyes dark brown, the 

 interspace between the eyes with a transverse arcuate bar of dark brown. Pro- 

 notum finely sprinkled with minute specks of the suffusing tint. Tegmina uni- 

 formly marked with small indistinct blotches of umber, the median section with 

 four longitudinally disposed small circular dots of this tint. Apical section of the 

 abdomen with a dull indistinct blackish sutfusion. Upper surface of the abdo- 

 men with the borders of the segments paler than the median section. 



Measurements : 



Length of body, 25.5 mm. 



Length of pronotum, ... . 6. " 



* Catal. Blatt. Brit. Mus., p. 74. 



