348 Field Museum of Natural History — Zoology, Vol. VII, 



Male. Fifth ventral segment truncate; sixth ventral narrower 

 and much shorter than last dorsal, the posterior angles slightly pro- 

 longed and broadly rounded between which the tip is truncate. 

 Last dorsal truncate at apex, angles rounded. (PI. VI, fig. 8.) 



From usta to which this species seems nearest related, it differs 

 in many details. However, the coarsely and densely punctured head 

 and prothorax, the presence of an ante-scutellar impression, the some- 

 what longer rows of elytral punctures and the probably different 

 form of the terminal segments of abdomen in the male will serve to 

 distinguish this species. 



Albuquerque, New Mexico. One specimen (Wickham). Type 

 in cabinet of Prof. H. F. Wickham. 



Cymatodera semula sp. nov. 



Slender, piceous; elytra with humeral callus obscurely and a 

 narrow very indistinct median fascia, which scarcely attains the 

 suture, dull testaceous; antennae, palpi, meso-, and metastemum, 

 abdomen, base of femora, apex of tibiae and the tarsi brownish; 

 pubescence very short and sparse. Head densely, not very coarsely 

 punctate; eyes feebly prominent. Antennae slightly longer than 

 head and thorax; joint two slightly shorter than joint three; three 

 to ten subequal, elongate, serrate; eleventh one-half longer than the 

 tenth. Thorax one-half longer than wide; sides feebly constricted 

 before the middle, rather strongly compressed behind; base much 

 narrower than apex; ante-scutellar impression distinct; surface 

 rather coarsely and densely punctate. Elytra nearly three times as 

 long as thorax, much wider at base than thorax at widest part; 

 humeri distinct; sides slightly broader posteriorly; apices conjointly 

 rounded; striate with rows of moderate punctures, becoming finer 

 posteriorly but scarcely reaching beyond the middle; punctuation 

 of apical portion fine and confused. Meso-, metasternum, and ab- 

 domen moderately coarsely, but rather sparsely punctate. Length, 

 10.5 millim. 



Male. Fifth ventral broadly emarginate at apex; sixth short, 

 narrower than last dorsal, broadly rounded, slightly incised at apex. 

 Last dorsal short but extending beyond last ventral; sides strongly 

 arcuate, narrowing to apex, which is broadly triangularly emarginate. 

 (PI. VI, fig. 9.) 



Only comparable to fascifera Lee, from which it differs by the 

 more elongate form, proportionately longer antennae and prothorax, 

 sexual characters of the male, and somewhat different sculpture and 

 coloration. 



