NO. 1124. EEVISION OF THE MELANOPL I SC UDDER. 73 



It lias also been reported from Nebraska (Dodge) and Wyoming 

 (Brunei 1 ). 



The single specimen from Grand Junction is of an exceptionally 

 small size, a female only 17 mm. long. 



This is the largest species of the genus and is not uncommon at the 

 eastern base of the Eocky Mountains in Colorado. I have considered' 

 it probable that this is the species described by Dodge under the name 

 Caloptenus regalis, but the description does not very well apply to it. 

 I am guided partly by a sketch of the markings of the tegmina sent 

 me many years ago by Mr. Dodge, and partly by the impossibility of 

 applying the description to any other known species. 



4. AEOLOPLUS CALIFORNICUS, new species. 

 (Plate V, fig. 8.) 



Head luteo-ferruginous, with a broad, obscure fuscous, median stripe 

 on the summit, not including the fastigium; frontal costa equal, as 

 broad as the interspace between the eyes, plane; antennae bright 

 orange. Pronotum obtusely angulate posteriorly, the angle rounded, 

 the median carina generally feeble but sometimes distinct on the meta- 

 zona, wanting on the prozona, the latter with a pair of approximate, 

 anteriorly converging, dull olivaceo-fuscous, rather obscure, narrow 

 stripes; on the upper half of the lateral lobes the transverse sulci are 

 marked in fusco olivaceous, and there are sometimes fuscous clouds in 

 the .same region, but nowhere distinct. Prosternal spine as in Ae. 

 ref/alis. Tegmina much surpassing the abdomen in both sexes, at 

 their broadest as broad as the metazona, beyond the subbasal enlarge- 

 ment tapering very gradually, the tip rounded, fulvo- testaceous, flecked 

 feebly, especially along the middle, with fuscous, the longitudinal veins 

 interruptedly fuscous and pallid in the apical half; wings slightly 

 shorter than the tegmina, moderately broad, distinctly less than twice 

 as long as broad, the veins and cross-veins glaucous. Hind femora 

 and tibiae precisely as in Ac. reyalis. Supraanal plate of male trian- 

 gular, with strongly sinuate sides and produced and rounded apex, 

 with a basal, apically narrowing, moderately broad median sulcus, 

 bounded by sharp but low walls and reaching halfway across the plate, 

 and an oblique ridge on each side, as in Ac. reyalis, but much less 

 prominent; furcula indicated merely by a pair of thickenings of the 

 inner angles of the mesially parted terminal dorsal segment; cerci as 

 in Ac. reglis, but with the apical portion less slender and straighter; 

 infracercal plate just shorter than the supraanal, concealed by the 

 recumbent cerci; subapical tubercle of subgenital plate feebly promi- 

 nent, very i)lunt and rounded. 



Length of body, male, 24.5 mm., female, 26.5 mm.; antennae, male, 

 9 mm., female, 8.5 mm.; tegmina, male, 22 mm., female, 23 mm.; hind 

 femora, male, 13.5 mm., female, 14 mm. 



One male, 4 females. California, Burrisou (S. Henshaw). 



