go NATURAL HISTORY BULLETIN 



AuLicus Spinola. 



A. NERO Spin. Alpine, Texas, July and August; Luna, New Mexico, 

 August; Palm Springs, California, June. This insect rests on the stems 

 of tall grasses, in which position it is quite conspicuous. Besides the above 

 recorded distribution, it inhabits Nevada and Lower California. 



A. MONTICOLA Gorh. Alpine, Texas, August; Santa Rita Mountains, 

 Arizona, September. Its habits are the same as those of the preceding 

 species. Its range extends into Mexico. 



Xenoclerus Schklg. 



X. EDWAKDSii Horn. Tucson, Arizona, August 24; this fine species occurs 

 occasionally among the branches of the palo verde and other small desert 

 trees on the hills about the town, and is only moderately alert. It is known 

 as well from California and the Peninsula. 



Tribe III. Hydnocerini. 



Hydnocera Newm. 



H. UNIFASCIATA Say. Atoka, Indian Territory, June; Southern Pines, 

 North Carolina, May and June, the specimen of later date having no cross- 

 band; Bloomington, Illinois, July; New Mexico. Other records are Ala- 

 bama, District of Columbia, New York, New Jersey, Massachusetts, Penn- 

 sylvania, Ohio, Indiana, Nebraska, Colorado, Texas and Arizona. 



H. RUFIPES Newm. Chuchula, March 29, and Oak Grove, Alabama; it is 

 recorded from Florida and Arkansas. The Chuchula specimen, received from 

 Mr. Loding, is marked as having been collected on oak. 



IT. DUBIA Wolc. n. sp. Very similar to the blue variety of humeralis in 

 size, form and color. Rather robust, black, moderately clothed with short, 

 pale grayish pubescence. Head and thorax with slight greenish tinge, finely 

 densely punctate and asperulate. Antennae pale testaceous, apical joint and 

 the palpi pale piceous. Elytra fully covering the abdomen, blue black, 

 closely subcribrately punctate, sculpture more dense towards the tip, sides 

 slightly narrowing towards the apices which are separately obliquely round- 

 ed, strongly serrate and but slightly dehiscent at the suture. Legs black, 

 anterior and middle tibia? (the latter more or less infuscate), knees, and 

 tarsi of all the legs pale testaceous. Length, 4.00 mm. 



Devil's Lake, North Dakota, June 6, (TYPE). 



Represented by a single male specimen which differs from the blue form 

 of E. humeralis as follows: — Subopaque, more densely pubescent, head 

 and pronotum more finely but roughly punctured, prothorax proportionately 

 longer, the sides more broadly but less strongly dilated, the disk not less 

 densely punctured than the flanks and the elytral apices obliquely rounded. 



