308 PROCEEDINGS OF THE ACADEMY OF [JunC, 



lobe about as deep as long, the ventral margin subrectangulate, 

 elytral sinus shallow and broad, the margin evenly arcuate ventrad of 

 the same, convex callosity well defined in both sexes. Tegmina elon- 

 gate, slightly tapering, apex rounded ; tympanum rather light, slightly 

 longer than wide. Wings projecting beyond the tegmina by less than 

 the length of the head, apex narrowly rectangulate. Terminal dorsal 

 abdominal segment of the male with two median rounded lobes 

 separated by a deep rounded emargination; cerci straight except 



Fig. 5. — Orchelimum molosstwi n. sp. Fig. 6. — Orchelimum molossum n. sp. 

 Dorsal \iew of male appendages. Lateral view of o\'ipositor. (X 2.) 



(X 5). 



for a mesad bend at the middle, the proximal half robust, the 

 distal portion tapering, acute, tooth on the internal face on the 

 same plane as the cercus, stout, slightly recurved, acute; subgenital 

 plate of the male ample, scoop-like, reaching about to the teeth of the 

 cerci, distal margin rectangulate-emarginate, provided laterad with 

 distinct but rather short styles. Supra-anal plate of the female 

 acute-trigonal; ovipositor rather short, falciform, in length slightly 

 shorter than the head and pronotum together, equal in width in the 

 proximal half, tapering in the distal half, apex acute, the margins of 

 the apex wdth slight traces of serrations ; subgenital plate sjiort, buUate, 

 the extreme apex very slightly rectangulate-emarginate. Cephalic 

 and median limbs moderately robust. Caudal femora about equal to 

 three-fourths (cJ^) or four-fifths ( 9 ) of the tegminal length, strongly 

 bullate in the proximal half, externo-ventral margin armed with from 

 two to five spines. 



General color pale apple green, washed on the dorsum with tawnj- 

 ochraceous, a weak sub-lyrate pattern on the pronotal disk of the latter 

 color, while the principal vein of the tympanum is also marked with 

 it. Eyes of the male raw umber, of the female clove brown. Ovi- 

 positor greenish brown, male appendages ochraceous. 



Measurements. 



c? 9 



Length of body, 21.5 mm. 21.8 mm. 



Length of pronotum, 5 " 5.6 " 



Length of tegnien, 24.5 " 25 " 



Length of caudal femur, 17.6 " 20.8 " 



Length of ovipositor,^** S " 



18 Ventral length. 



