230 NEW SPECIES MELYRIDAE, CHRYSOMELIDAE AND TENEBRIONIDAE 



Type locality. Corona, California (Holotype) ; Los Angeles, Cali- 

 fornia (Allotype). 



Obtusangula has been labeled as angustus Lee. in my collection for 

 many years. An examination of my series shows it to be wingless and 

 the propleura distinctly but not strongly rugulose, punctures not evident. 



Horn states that angustus is winged and that the propleura are 

 coarsely punctate. 



Obtusangula is related to stenotrichoides Blais., similar in form, but 

 less elongate, less robust, and less convex, integuments thinner and the 

 small tubercles of the lateral and apical intervals of the elytra are less 

 evident, besides, the basal angles of the pronotum are obtuse and more or 

 less slightly rounded. 



In stenotrichoides the basal angles are distinct, propleura punctato- 

 rugulose, punctures distinct and shallow on the coxal convexities ; outer 

 joints of the antennae slightly compressed in the male and twice as long 

 as wide; antennae more elongate in the female than in the same sex of 

 Obtusangula; with joints six, seven and eight rather more elongate. In 

 strigicollis Horn the form is narrower, elytra scarcely wider than the 

 pronotum, the latter is distinctly longitudinally strigose, antennae heavier, 

 propleura distinctly punctate. Strigicollis and obtusangula were taken at 

 the same time at Corona, California, by Mr. Wilson. 



Attenitatus belongs to the same group of species. My only specimen 

 referred to this species was collected by Mr. Nunenmacher at Goldfield, 

 Nevada. The form is almost subcylindrical, pronotum almost discretely 

 and rather sparsely punctate, antennae with joints four to eleven subequal, 

 propleura coarsely punctate, each puncture with a small yellow hair. I 

 can not agree with Horn in considering that attenuatus should be asso- 

 ciated with bachei Lee. It is very desirable to study the genitalia of the 

 different species, but the scarcity of specimens forbids any dissection at 

 the present time. 



The above species, as I view them, may be separated as follows : 



Body winged augustus Lee. 



Body wingless - _ _. 1 



1. Pronotum distinctly strigose -strigicollis Horn. 



-. Pronotum distinctly punctate , 2 



2. Body distinctly subcylindrical attenuatus Lee. 



-. Body more or less depressed 3 



3. Antennae elongate in both sexes, slightly longer in the male ; basal angles of 



the pronotum distinct stenotrichoides Blais. 



-. Antennae elongate in the male, distinctly shorter in the female ; basal angles 



obtuse and slightly rounded _ obtusangula, n. sp. 



In the above species the color is brownish to piceous, legs more or 

 less rufous with the abdomen darker rufo-piceous. 



