264 CHBYSOHELIDjE. 



the thorax and underside and the flattened elytral interstices." 

 (Sufrian.) 



Length 7 mm. 



Hob. Ceylon : Colombo. 



Suffrian also compares this snecies with 0. sexsignatus, of which 

 no variety has been described in which the elytra have four spots 

 instead of three, although such of course may exist. 



458. Cryptocephalus corrosicollis, sp. n. 



c? . Testaceous ; terminal six joints of antennae black ; elytra 

 with extreme sutural margins and a small humeral spot black. 



$ . Head with a central black band ; elytra with two spots at 

 base and one behind the middle black. 



Head deeply longitudinally grooved at vertex, very finely rugose 

 and punctured ; clypeus triangularly emarginate, finely pubescent ; 

 eyes deeply subquadrately emarginate ; antennae rather short and 

 robust, basal five joints testaceous, rest black, first joint thick and 

 short, second very small, third twice as long as second, fourth and 

 following gradually lengthened, scarcely widened. Thorax one- 

 half as broad again as long, strongly convex, sides rounded 

 anteriorly, not much narrowed in front, surface minutely punc- 

 tured and entirely covered with extremely fine transverse wrinkles. 

 Scutellum margined with black at base, the latter foveolate. 

 Elytra narrowed posteriorly, deeply punctate-striate, interstices 

 slightly costate, entirely covered with fine rugosities ; epipleural 

 lobes slightly angular. Body beneath very finely pubescent, 

 testaceous, breast slightly fuscous ; legs robust. Prosternum 

 strongly produced anteriorly and hollow. 



The female differs in having three elytral spots, two elongate 

 at basal margin, closely approximate, and one transverse behind 

 the middle between second and seventh rows of punctures. 



Length 2^-3 mm. 



Bab. India : Pusa. 



The peculiar sculpture of the thorax will easily distinguish this 

 species. 



459. Cryptocephalus abbreviations, Suffi: Monoar., Linn. Ent. ix, 



1854, p. 48. 



" <j> . Fulvous ; elytra with two spots at base and an abbreviated 

 transverse band behind the middle black. 



" Head somewhat closely and distinctly punctured at middle and 

 on lower portion, longitudinally grooved at middle of vertex ; 

 antennae pale flavous, slender, third and fourth joints equal, sixth 

 and following slightly widened, Thorax strongly convex in front, 

 two oblique depressions in front of scutellum, surface entirely 

 impunctate. Scutellum trigonal, margin piceous. Elytra with 

 single deep punctures at base, gradually finer posteriorly, nearly 



