HEMIPTERA OF LOWER CALIFORNIA. 245 



lateral margins of the posterior lobe of the pronotum and 

 sometimes the posterior part of the medial carinate hne 

 red. Head moderately long, subacute, minutely and obso- 

 letely scabrous, very minutely pubescent; antennee stout, 

 finely pubescent, the second joint long, about equal to the 

 fourth, the third short and a Httle longer than the basal 

 joint; rostrum reaching the posterior coxj£. Pronotum 

 depressed behind the collum, and back of the curved im- 

 pressed line between the lobes, the callosities almost ob- 

 solete, the lateral margins prominently elevated and grow- 

 ing thicker posteriorly, the medial carinate line sharply 

 defined; the anterior lobe remotely and more coarsely 

 punctate, and the posterior lobe obsoletely and more fine- 

 ly so. Scutellum with a thick scabrous raised line on the 

 middle. Hemielytra densely and minutely scabrous, with 

 the vems of the corium and its claval boundary thick and 

 very prominent. Collum of the prosternum notched in 

 the middle. Underside rendered a little grayish by the 

 minute sericeous pubescence; the legs tinged with gray 

 in the same manner. Venter a little tinged with red along 

 the connexivum. Membrane smoke black. 



Length to tip of venter, Sj4-8 mm. Width of base of 

 pronotum, 2-3 mm. 



This species closely resembles Lygceus lateralis Dal- 

 las, as figured by Mr. Distant in the Biologia Cent. Amer., 

 plate 18, fig. I. But the figure seems to give a much 

 narrower insect with longer head, corium bordered with 

 red, and joints of antennae relatively longer. 



Numerous specimens were collected at Cape St. Lucas 

 by Mr. John Xanthus. Another was secured at San 

 Jose del Cabo by Dr. Gustav Eisen. 



Melanocoryphus circumplicatus Dist. A single 

 specimen of this species was found at Lower Purisima, 

 in April, by Mr. Charles D. Haines. It is No. 484 of 

 the collection. 



