ART. 28 REVISION OF DISONYCHA NORTH OF MEXICO — BLAKE 29 



Remarks. — In the LeConte collection are 3 specimens of this species, 

 1 of which is labeled H. pimctigera and all of which bear the green 

 circle label indicating that they are from the region given as tho 

 type locality. Following these three specimens are several others 

 not of this species, but arizonae, and not fitting LeConte's descrip- 

 tion. In his description LeConte differentiated this species clearly 

 from others closely resembling it. According to the original de- 

 scription, 'punctigera is broader proportionately than any of the 

 altemata group, the prothorax is more convex, lacking the depressions 

 such as are found in the aUernafa group, and the elytra are strongly 

 and densely punctured. Moreover, the submarginal and sutural vit- 

 tae, as he also states, are not at all joined, in this respect differing 

 from aHzonae. In short, punctigera., although at first glance resem- 

 bling alternata, is not related to it. The head is smoother, the pro- 

 thorax and elytra are differently shaped and lack depressions, and 

 the aedeagus is unlike that of altemata., but resembles somewhat that 

 of IJ. caroliniana., an oval species. Possibly this is the species 

 described by Say as A. quinquevittata (see p. 65). 



Mr. Schaeffer has sent me a paratype of D. neglecta from Kansas, 

 which he has donated to the National Museum (no. 44116). It is 

 a male and has been preserved for some time in alcohol and is there- 

 fore paler, but in no other way separable from typical specimens of D. 

 'punctigera LeConte. A type (male) and three paratypes (1 male 

 and 2 females) of D. punotipennis in the United States National 

 Museum are identical with typical specimens of D. punctigera. Ap- 

 parentl}'^, although Mr. Schaeffer has recognized the species, he has 

 never connected LeConte's name punctigera with it, but has con- 

 sidered altemata as punctigera. This is shown by species labeled D. 

 punctigera by him in the National Museum, which are alternata, and 

 by his most recent paper on Disonycha (1931). 



11. DISONYCHA ARIZONAE Casey 

 Plate 3, P'igure 13 



Disonycha arizonae Caset, Contributions, pt. I, p. 52, 1884 (Arizona ; tyiK' 



U.S.N.M. No. 49225, Casey collection). — Horn, Trans. Amer. Ent. Soc, vol. 



16, p. 206, 1889. 

 Disonycha glabrata Jacoby, Biol. Centr. Amer., vol. 6, pt. 1, p. 311, 1884 (in 



part). 

 Disonycha davisi Schaeffeh, .Touin. New York Ent. Soc, vol. 32, p. 141, 1924 



(Anglesea, N. J. ; type, U.S.N..AI. No. 4242(>). 



Descri'ption. — Oblong, feebly shining, with moderately densely 

 punctate prothorax and elytra; pale, usually with a small dark spot 

 on occiput and dark labnun, tubercles sometimes dark, two anteri(ir 

 spots on prothorax, and sutural, median, and submarginal elytral 

 vittae; apex of tibiae and tarsi dark. Head with interocular space 



