June, 1913-] ROBERTS: NOTES ON HaLIPLID^ OF AMERICA. 105 



All the specimens I have seen are from Texas, and nearly all 

 from the one locality, Brownsville. 



Haliplus concolor Lee. 



This species is more oval in form than timiidus and of a deep 

 ferruginous color. 



In the six specimens before me, five being from San Diego, Cal. 

 (Soltan), and one from Los Angeles, Calf. (Van Dyke), the size 

 ranges from 214 to ;^y2 mm. in length and from 13% to 2j4 rnm. in 

 width. 



Two specimens, a male and female, show indistinct maculation 

 after the pattern of tumidtis, the others are entirely unicolorous. 



The pronotum is quite evenly, finely punctured and somev/hat con- 

 vex from apex to base, giving the disc a " full " appearance. The 

 elytral striae are not so deeply or coarsely punctate as in tnmidus ; the 

 punctures very much finer towards the suture and apices and there 

 is no sign of asperity at the humeri, but on the contrary only a few 

 fine punctures appear at that point leaving them almost bald and 

 shining; the side margins are serrulate, gradually rounded, and the 

 apices feebly oblique. 



The prosternal process is not sulcate, the sides being parallel for 

 almost their entire length; sides and apex finely, sharply margined. 



The mid-metasternum is deeply impressed each side, leaving a dis- 

 tinct short ridge between, with the margins very fine and nearly at- 

 taining the suture of antecoxal piece. 



Hind coxal plates with small, deep punctures evenly placed and 

 with the apices rounded to beyond the center, then slightly inflexed 

 but scarcely sinuate, with the sutural angle rectangular but not pro- 

 duced. 



In undertaking a re-description of this species Mr. Matheson has 

 blundered in not recognizing the species before him, as was the case 

 with punctatns. 



His description, such as it is, does not agree with the type nor 

 would my specimens fit into it. 



My suspicions were aroused by his giving the locality of his speci- 

 men as Brownsville, Texas, the home of tiiiiiidns, while all the speci- 

 mens of concolor I had seen were from California. 



Writing to Prof. Wickham, who has the specimen described by 



