THE NEGRO BUGS. 



61 



II. Galgupha Amyot & Serville, 1843, 68. 



Small oval convex species having the head subtriangular, 

 broader than long, its apex bluntly rounded ; cheeks equalling 

 or slightly shorter than tylus ; beak reaching or surpassing 

 middle coxae ; antennae rather stout, second joint less than 



one-third the length of third, 

 3 — 5 subequal ; pronotum quad- 

 rangular, nearly twice as wide 

 as long, its side margins entire, 

 not ciliate; scutellum very 

 large, covering almost entire 

 abdomen, its apex broadly 

 rounded ; elytra with corium 

 very narrow, its apex acute; 

 connexivum not exposed; area 

 of meso- and metapleura sur- 

 rounding the osteole opaque, 

 transversely rugose ; hind tibiae 

 armed with five rows of strong 

 spines and with a linear ridge 

 or carina on under or posterior 

 , surface. Genital plate of male 



Fig. 12. Showing venation of corium r 



and form of scuteiium in Oaigupfta; 43, a i m0 st concealed by the large 



corium of aterrima; 44, of nitiduloides ; •> ° 



45, of nigra; 54, scuteiium of aterrima; s i x th ventral, its hind margin 



do, of nittdnloidcs. 



(After Hart & Malloch). 



SS 



emarginate. 



subtruncate, sometimes slightly 

 Five of our eastern species belong to this genus. 



KEY TO EASTERN SPECIES OF GALGUPHA. 



i. Surface highly polished, punctures of upper surface, except on sides 

 of scuteiium, very few; corium without a distinct ridge inside the 

 costal groove; pronotum and scuteiium evenly convex, their bases 

 at same level; larger, length, 5 — 6 mm. 23. ATRA. 



i. Surface above distinctly punctate; corium with a distinct ridge 

 inside the costal groove; pronotum higher than scuteiium, their 

 bases forming a transverse groove; smaller, not over 4.5 mm. 

 b. Form more oval, slightly narrowed behind; surface shining black, 

 distinctly not closely punctate. 

 c. Scuteiium not abruptly declivous at apical third (fig. 12, 55) ; 

 venation of corium as in fig. 12, 4-4,' fore femora with median 

 spine on lower front margin distinctly longer than the other two. 

 d. Joint 3 of antennae two and one-half times as long as 2; side 

 margins of head reflexed ; jugae with oblique impressions. 



24. NITIDULOIDES. 



