20 NOTES ON JAMAICAN HEMIPTERA 



pronotum is strongly narrowed; sides with a slender carina which is higher 

 across the anterior sinus; hood moderately elevated; disk strongly, almost 

 tubercularly elevated, as high as the hood, tricarinate; color ferruginous 

 becoming blackish posteriorly; the median carina and a slender line bound- 

 ing the pale lateral carinas, black; hood and anterior edge of the pronotum 

 white, the latter with two black points beneath the hood. Elytra fuscous 

 or blackish, trie costal area whitish hyaline, broken by a broad black band 

 at the middle and a narrower one at apex, the disk of some of the apical 

 areoles subhyaline; bounding nervures of the discal area white at apex; 

 discal, subcostal and sutural areas finely areolate, the costal and apical 

 areoles larger; costal area indistinctly triseriate. Wings almost attaining 

 the apex of the elytra. Rostrum reaching the insertion of the posterior 

 legs. Xength 2 to 2j^ mm. 



Described 'from 22 examples taken at Mandeville and 

 Balaclava where it appeared to be common. This little species 

 has the form, size and markings almost exactly of constricta but 

 may readily be separated by its having the expanded mem- 

 branous margins of the pronotum reduced to a mere carina; 

 the disk much more convex and divided by a transverse suture, 

 and the posterior tip truncated. The basal joint of the antennae 

 is also a little shorter and the colors are more varied. Some of 

 these characters might be construed to be of generic value. The 

 specific name is suggested by the dark markings which recall 

 those seen on certain serpents. 



Acanthochila armigera Stal. 



I took four adults and one larva of this pretty species from 

 the hill south of the Newleigh House at Mandeville, and two 

 adults by the roadside near Paradise Pen at Montego Bay. 

 These are all rather pale ferruginous with the head, apical joint 

 of the antennae, its base excepted, anterior disk of the prono- 

 tum, body beneath and tips of the marginal spines of the pro- 

 notum, black. The two long spines on the head are white and 

 conspicuous, and the transverse vitta on the elytra is pale and 

 poorly defined. 



Acanthochila spinicosta n. sp. 



Closely allied to armigera but differing principally in having the 

 costa armed with spines to behind the middle, those near the base longer, 

 and tipped with black as are those of the pronotum; the head ferruginous 

 instead of black; the basal joint of the antennae with a black line exteriorly, 

 and the apical joint black only on its apical one third. Membranous margin 

 of the pronotum somewhat broader than in armigera; disk of the discoidal 

 and subcostal areas conjointly ferruginous, darker than in armigera, the 

 intervening carina white at apex with a black dash before the middle. 



