442 BULLETIN UNITED STATES GEOLOGICAL SUKVEY. 



12. S. stellata. 



Aoanthia stellata Curtis, Ross's Second Voyage to the Arctic Regions, appendix 

 Isxv, No. 24. 



" Blackish sericeous ; elytra with a pale spot at the center and several 

 at the apex ; legs ocherous. Black, clothed with very short shining 

 hairs ; thorax transverse, the edge beneath subocherous, as well as the 

 center of the antepectus; scutellam rather large; elytra with the costa 

 reflexed at base, a semitransparent spot at the base, another on the 

 disk, and eight or nine arranged in a circle on the submembranous apex ; 

 margins of abdominal segments beneath ocherous, and forming a row 

 of dots down each side ; legs dirty ocher, somewhat freckled with 

 piceous." 



Lengtji 3 lines. 



" The head is wanting to the only specimen I have seen; it most 

 resembles A. zosterce Fabr., but it is very distinct from my examples of 

 that insect. As some of its larvae or pupae were found, it is probably 

 not uncommon in the polar regions." 



The species has not been recovered by any one in I^orth America, 

 and it still remains unknown to students in this country. 



13. 8. lugubris. 



AcantMa luguiris Say, Heteropt. New Harmony, 34, No. 3. 



"Body black, subopaque. Head between the antennae with three 

 yellowish points ; antennae, first and second joints dull yellowish before 

 Thorax and scutel immaculate. Hemelytra immaculate on the corium. 

 or with an obsolete dull yellowish point on the middle of the tip ; mem- 

 brane with two or three obsolete dull yellowish spots, inner margin 

 and tip. Beneath with a yellowish spot before each of the anterior 

 feet. Feet pale yellowish ; tibiae and tarsi more dusky ; thighs, partic. 

 ularly the anterior and posterior pairs, with a more or less dilated 

 black line toward their tips ; coxae black, the anterior pair yellowish at 

 tip, remaining pairs slightly tipped with yellowish." 



"Length to tip of hemelytra less than three-tenth s of an inch." 



" For this species I am indebted to Nuttall, who obtained it in Mis- 

 souri." 



This description suits hiost nearly a spotted variety of >S'. Uttoralis 

 Linn, from Illinois ; but, as I do not possess a specimen to which this 

 description will rigidly apply, I must defer the reference until a later 

 opportunity offers. 



0. Membrane very distinct from the corium : 

 a. Pronotum semilunate, depressed : 



14. S. deplanata, new sp. 



Oval, robust, dull black, the uppersurfaceremotelyappressed, golden 

 pubescent, and with a few erect, remote, brown hairs. Head from above 



