274 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 50. 



CYMATODERA UNIFORMIS Schaeffer. 



Williams, Arizona, reared from Cowania mexicana in 1901 (Schwarz 

 and Barber). 



The female of this species was unknown to Mr. Schaeffer at the 

 time of his making the species known. 



Female. — Fifth ventral segment truncate; sixth ventral smaller 

 than last dorsal, semicircular; last dorsal semicircular. (Plate 43, 

 fig. 9.) One female and one with abdomen destroyed. 



CYMATODERA PUBESCENS Wolcott. 



Texas (Belfrage). 



The abdominal characters of the female of this species have not 

 been made known. Three specimens of that sex are now before me, 

 enabling these characters to be recorded. 



Female. — Fifth ventral segment truncate at apex; sixth short, 

 rounded, smaller than the last dorsal; last dorsal oval at tip. (Plate 

 43, fig. 10). Three females. 



CYMATODERA SCHWARZI, new species. 



Elongate, shining, sparsely pubescent, intervals with short erect 

 hairs, piceous brown; labrum, four basal joints of antennae, palpi, an 

 antemedian fascia which reaches neither suture nor side margin, under 

 surface of head, legs and entire underside of body pale yellowish; 

 outer joints of antennae varying from pale yellowish brown to piceous 

 brown. Head finely, sparsely, punctate, a little closer and coarser 

 on occiput ; front with an oblique impression each side ; eyes promi- 

 nent; antennae slightly longer than head and thorax, joints two, 

 three, and four small, third joint slightly longer than the second, 

 fourth joint slightly shorter than the second, each much shorter 

 than joint five or any of the following joints. Prothorax one-third 

 longer than wide, moderately constricted at apical third, strongly 

 compressed at basal third; surface very finely transversely rugulose, 

 moderately finely and sparsely punctate; ante-scutellar impression 

 small and feebly impressed. Elytra twice as wide as thorax at base ; 

 humeri distinct; sides moderately divergent posteriorly; apices con- 

 jointly rounded; punctures rather coarse and closely placed in basal 

 half gradually becoming finer, more remote and less impressed ter- 

 minating at apical fourth; apex irregularly, scarcely perceptably 

 punctate; intervals very slightly convex, with a single row of sparse, 

 fine punctures, near suture twice as wide as the punctures, wider 

 toward the sides. Body beneath sparsely pubescent; metasternum 

 smooth, impunctate, near posterior margin a few minute scattered 

 punctures, sides with scattered slightly coarser punctures; abdomen 

 moderately coarsely very sparsely punctate. Legs sparsely clothed 

 with moderately long hairs. Length, 4.5-5.3 mm. 



