SUBFAMILY II. — ASOPHSLE. 183 



keys calls them "stridulatory spots." They are, of course, 

 analogous to the finely ridged spaces found in the males of a 

 number of Scutellerids, but those are not pubescent, and their 

 ridges might, and doubtless do, serve in making sound by draw- 

 ing the hind legs across them. In fact, Stiretrus appears to be 

 more closely allied to the family Scutelleridae than to the 

 Pentatomidae. It was placed next to that family by Stal in his 

 "Enumeratio" and Say described the two forms of Stiretrus 

 above treated as members of the genus Tetyra, placing them 

 with the Scutellerid now known as Eurygaster alternatus, 



II. Alc^eorrhynchus Bergroth, 1891, 235. 



Very large elongate-oval species having the head porrect, 

 longer than broad, its apex subtruncate ; cheeks as long as 

 tylus, their margins parallel ; beak very stout, reaching hind 

 coxae, second joint slightly longer than fourth, third shorter 

 than either ; antennae short, joints 2, 3 and 5 subequal, 4 long- 

 er; pronotum with front portion strongly declivent, its side 

 margins straight, roughly crenulate, humeri ending in a stout 

 very acute spine, this with a short, obtuse submedian lobe be- 

 hind ; scutellum long, strongly tapering behind, the tip nar- 

 rowly rounded, frena two-thirds its length ; apex of corium 

 oblique, feebly angled opposite tip of scutellum ; membrane sur- 

 passing abdomen, its veins simple ; connexivum rather widely 

 exposed, female, narrowly so, male ; osteolar opening with a 

 long curved attenuate canal ; projection of second ventral a 

 broad flattened tubercle, its tip rounded ; tooth of front femora 

 stout, obtuse ; tibiae sulcate above, the front ones deeply so. 



Two neotropical species are recorded from Florida. They 

 were formerly classed under Muty'ca Stal, a name which was 

 preoccupied. 



KEY TO EASTERN SPECIES OF ALC.EORRHYNCHUS. 



«. Spines of humeri directed straight outward; base of scutellum and 

 elytra sparsely punctured; length, 18 — 20 mm. 



127. PHYMATOPHORA. 



aa. Spines of humeri in front of their median lobe directed slightly 

 forward ; base of scutellum and elytra more closely, rugosely punc- 

 tured ; length, 21— 24 mm. 128. GRANDIS. 



127 (209). Alceorrhynchus phymatophora (Palisot de Beauvois), 

 1805, 112. 



Elongate-oval, sides of elytra subparallel. Dull clay-yellow, rather 

 sparsely and irregularly beset with fuscous or reddish-brown punctures; 



