1855.] 36; 



Laccobils Er. 



1. L. a g i 1 i s , subrotundus, capite thoraceque nigro-srieis minus subtiliter 

 punctatis, clypei angulis aaticis, thoracisque lateribus postice intus prolongatis, 

 pallidis elytris seriatim punctatis pallidis, griseo-nebulosis ; subtus niger, pedi- 

 bus pallidis. Long. -09 -11. 



Randall, Bost. Journ. Nat. Hist. 2, 19. 



Laccobius punciulaius Mels. Proc. Acad. Nat. Sc. 2, 100. 



Middle -States, Lake Superior, and Kansas : abundant, very similar to the 

 European L. m i n u t u s, but on comparison I find that the punctures of the 

 thorax are considerably larger: the pale lateral portion is posteriorly much less 

 sharply defined than in the European species. 



2. L. ellipticus, ellipticus, capite thoraceque nigro-acneus, minus subtiliter 

 sat dense punctatis .ivpei angulis anticis, thoracisque lateribus postice intus 

 prolongatis pallid elytris seriatim punctatis, pallidis griseo-nebulosis, subtus 

 niger, pedibus pa 'lis. Long. *10. 



San Francisco an 1 San Diego, California. Narrower than the preceding, with 

 the head and thorax more densely punctured. 



Berosus Leach. 



A. Elytrorum humeri rotundati. 



1. B. punctatissimus. ovatus convexus supra luridus opacus, puncta- 

 tissimus, capite ameo, vertice tenuiter carinato, thorace linea tenui dorsali laevi, 

 vittis tribus aeneis, intermedia duplicata, ornato, elytris fusco-nebulosis, striis 

 exaratispunctulatis postice profundius punctatis, interstitiisplanis, apicetruncato- 

 emarginatis extrorsum 1-spinosis, subtus niger, pedibus testaceis, femorum 

 dimidia basali nigra. Long. -25 -30. 



LeConte, Ann. Lye. Nat. Hist. New York, 5, 211. 



San Diego, California, abundant : found also at Sacramento by Messrs. Child 

 and Wittick. The tip of each elytron is slightlyemarginate, with a smallbut acute 

 spine at the outer angle of the emargination. The medial vitta of the thorax is 

 composed of two confluent or closely approximated vittae : at times the vittae 

 are so dilated that they all become confluent, and the disc of the thorax presents 

 a large brassy green irregular spot, and the margins are yellow : at other times 

 the lateral vittae are attenuated anteriorly, so as to appear like subbasal spots 

 with narrow anterior prolongations. The species is readily known from all 

 others here described by the very dense and rugous punctuation of the elytra. 



2. B. miles, elongatus subovatus convexus, lurido-testaceus nitidus, capite 

 punctato, cupreo-ieneo, occipite subtiliter carinato, thorace subtilius punctato, 

 aeneo-bivittato, elytris striis punctatis, interstitiis disperse punctatis, maculis 

 pluribus nigris ornatis, apice emarginatis utrinque bispinosis, scutello aeneo, 

 postpectore nigro. Long. -27. 



One specimen fo.nd by Lieut. Haldeman, at Ringgold Barracks, Texas. A re- 

 markably beautiful species, in which the elytral striae are not very deep : the 

 basal one is between the 1st and 2d, nearly one third the length of the elytra : 

 the interstices are flat, sparsely punctured, with an irregular series of larger 

 punctures between the 2d and 3d. The spots are scattered ; several are conflu- 

 ent before the middle near the suture, while those behind the middle form two 

 angulated lines confluent externally about the Gth interval, with an opposite spot 

 on the 8th, 9th and 10th: the humeral callus and a neighboring spot are also 

 black : the spine at the suture is as long as the outer one. 



3. B. aculeatus, elongato-ovalis, testaceus, supra convexus grisescens, 

 capite confertim punctato, obscure aeneo, vertice leviter impresso, occipite sub- 

 tiliter carinato, thorace sat dense punctato, elytris striis profundis punctatis, 

 interstitiis modice convexis irregulariter uniseriatim punctulatis, guttis nonullis 

 fuscis ornatis, ad apicem (?) singulatim vel ( % )coniuuctim breviter acuminatis. 

 Long. -15. 



