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RHTNCHOPHOEA : CUECULIONIN2E. 199 



abbreviated median line, the punctures here and there transversely confluent on the disc and becoming 

 much coarser towards the sides. Elytra coarsely punctate-striate, the punctures elongate and deeply 

 impressed, the interstices densely, rugosely punctate, 3, 5, and 6 from about the basal fourth, and 7-9 



for their entire length, more or less carinate, the ridges on 3 and 5 prominent. Beneath coarsely punctate ; 

 fifth ventral segment shallowly foveate in both sexes. Anterior coxae narrowly separated. Legs densely, 

 rugosely punctate ; intermediate and posterior tibiae angulate on their outer edge towards the apex. 

 fth 4|-5|, breadth 2£-2g millim. (<?$.) 



Hob. Nicaragua, Managua and Corinto [Solan). 





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Three specimens. Nearly related to It. rufus, Fahr., but much more rug 



less shining, and sparsely squamose, the prothorax less rapidly narrowed forwards 



... 



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ges on the elytra not so prominent, &c. B. semicostatus, Boh., from Colombia 



must be an allied smoother form. 





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GERSTAECKERIA (p. 470) 



6. Gerstaeckeria tolucana, sp. n. (Tab. IX. figg. 16, 16 



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Short-ovate, broad, very convex, black, the antenna? (the club excepted), and the tibiae in part, ferruginous ; 

 variegated above with a dense clothing of broad, pale brown and black scales, the latter condensed into 

 two spots on the head, various spots on the prothorax, and numerous scattered markings on the elytra 

 an interrupted, transverse, arcuate fascia on the disc at about the commencement of the apical declivity 

 and several streaks or transverse spots on the alternate interstices 2, 4, and 6 (the one at the base of 2, 

 and those towards the apex of 2 and 4, oblong) ; the scales on the legs and under surface pale brown, 

 the legs faintly annulate with whitish. Head and rostrum densely punctate, the latter broad, widened 

 outwards, and about as long as the prothorax. Prothorax short, obliquely narrowed from the middle, 

 constricted in front, the sides somewhat rounded posteriorly ; densely, finely punctate, broadly and shal- 

 lowly trisulcate towards the base (the intervening spaces appearing nodose in profile). Elytra gibbous, 

 rounded at the sides and produced at the apex, at the middle nearly one-half wider than the prothorax ; 

 with rows of foveiform punctures placed along shallow striae, the interstices broad and convex, very 

 densely punctate. Beneath densely punctate ; ventral segment 2 shorter than 3 and 4 united, the latter 

 together about as long as 5, the sutures straight. Legs short ; femora unarmed. 



Length 5, breadth 2| millim. 



Hal. Mexico, Toluca (Wickham). 



A single specimen, kindly presented to us by its captor. Recognizable by the 

 short prothorax and the rotundate, gibbous, nigro-variegate elytra (the black 



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very- 



streaks giving a nodulose appearance to the surface when the insect is viewed in profile) 









The second ventral segment 



the next two united, and the insect is 





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therefore better placed in Gerstaeckeria than in Aealles 



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7. Gerstaeckeria curvilineata, sp. n. (Tab. IX. figg. 17, 17 



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Closely resembling G. tolucana, but abundantly variegate above with larger whitish scales, the blackish- 

 brown scales on the elytra clustered into the following sharply-defined markings-four oblong streaks 

 at the base (the outer one on each elytron shorter and triangular), an oblique, strongly arcuate fascia 

 beyond the middle (extending from the first to the sixth stria, and followed by a curved, slightly broader, 

 whitish band), two elongate streaks on the apical declivity, and a small transverse spot on he outer margin 

 oehind the whitish band ; the prothorax with a few intermixed blacki sh scales towards the apex, the 



* A second specimen of G. lacti (p. 471) has recently been found in the British Museum, from the same 

 locality (Campeche) as the worn type. 



biol. CENTR.-AMER., Coleopt., Vol. IV. Pt. 7, October 1910. 







2DD 





