TRIBE XXI. CRYPTORHYNCHINI. 



505 



KEY TO EASTERX SPECIES OF GERST/ECKERIA. 



a. Elytra with a crest or tubercle behind the humeri; eyes well sepa- 

 rated; antennae inserted at middle of beak. 



b. Elytral foveas isolated and rounded, 795. IIUBBARDI. 



bb. Elytral foveas contiguous, coalescent. 796. DILATATA. 



rt. Elytra without posthumeral crest or tubercle; eyes narrowly sepa- 

 rated; third tarsal joint wider than second; thorax large, about as 

 wide as elytra; claws small and approximate. 797. FASCIATA. 



Fig. iii. Gerstizckeria nobilis Lee., dorsal and side 

 views X 5- (After Hunter & Pratt.) 



795 (8757). GERSJVECKERIA HUBBARDI Lee., 1880, 216. 



Subpyriform, very robust. Black, clothed with appressed brown and 

 whitish scales, the latter covering the head and, in great part, the legs, and 

 forming a few small dots on thorax, a short oblique posthumeral band, a 

 narrow, undulatory postmedian one and some small spots on the declivity 

 of elytra. Beak as long as thorax, cylindrical, curved, shining, punctate. 

 Head with a deep median fovea. Thorax slightly wider than long, sides 

 strongly rounded, distinctly constricted near apex; disc convex, coarsely 

 and densely punctured, carinate at middle. Elytra strongly and obliquely 

 dilated and with an obtuse rounded angle behind the humeri; striae deep, 

 with large impressed fovese; intervals very convex. Length 6.5 8.2 mm. 



Dunedin, Enterprise, Crescent City and Lake Worth, Fla. 

 Selrna, Alabama, April 7 Oct. 1, Occurs on and beneath the 

 leaves of a prickly-pear cactus, Opuiitia vulgaris Mill. 



796 (- 



-). GERSTVECKERIA DILATATA Casey, 1895, 834. 



Form of Tiul>l>ardi but more robust. Color nearly the same, the thorax 

 with velvety black scales on apical half and each of the large fovea? of 

 elytra with a broad whitish scale. Frontal fovea deeper and less elongate. 

 Elytra much more abruptly dilated behind the base, the post-humeral ridges 

 or tubercles larger; disc with deep rows of very large contiguous fovese; 

 intervals narrow, strongly convex, each with numerous small tubercles on 

 the crest. Length 8 mm. 



