﻿MELOLONTHLDiE OF THE UNITED STATES. 281 



7. D. f u s c u 1 a , elongata, rufo-testacea vel nigra, supra sequaliter fortius pallide pubescens, capite fortius con- 



fluenter punctate, margine antico vix rotundato, thorace minus dense punctato, lateribus subangu- 

 latis, rotundatis, antrorsum paulo angustiore, angulis posticis obtusis, elytris nigro-piceis, senescentibus, 

 margine testaceo, dense rugose punctatis, antennis runs. Long. -3 — 37. 

 Middle and Southern States. The legs vary with the body from yellowish red to 



nearly black, but are uniform in color ; the pectus in paler specimens is somewhat 



fuscous. 



8. D. truncata, elongata, nigro-picea, aequaliter dense fortius pallide pubescens, capite confluenter 



punctato, margine reflexo testaceo, antice recte truncato, angulis haud rotundatis, thorace dense punc- 

 tulato et parce punctato, lateribus rotundatis obtuse angulatis, angulis posticis obtusis, elytris vires- 

 centibus margine testaceo, confertim fortius rugose punctatis, abdomine saepe testaceo, antennis pedi- 

 busque flavo-testaceis. Long. -25. 



Platte River, Kansas Territory. Easily known by the truncate clypeus with 

 almost prominent angles. 



9. D. rotundata, elongato-ovalis, picea, subsenea, clypeo hemihexagono, fortiter punctato, anguste mar- 



ginato, thorace latitudine duplo breviore, convexo disperse punctato, obsolete canaliculate, ante medium 

 angustato, lateribus antice obliquis, postice cum basi fortiter rotundatis, angulis posticis omnino nullis, 

 elytris fortius punctatis tenuiter pubescentibus, lineis parum distinctis. Long. -31. 

 One very dilapidated dead specimen found at Vallecitas, San Diego County, Cali- 

 fornia. The oblique sides of the truncate clypeus, forming half of a hexagon, and 

 the posteriorly very much rounded sides of the thorax will readily distinguish it. 



II. 



10. D. valid a, elongata, nigro-picea , supra parcius, thorace fortius albo-pubescens, capite confluenter 

 punctato, vertice angulatim vage impresso, occipite sublaevi, thorace inaequaliter grosse punctato hexa- 

 gono, lateribus ante medium rotundatim fortiter angulatis, angulis posticis valde obtusis, canaliculate, 

 versus latera paulo inaequali, elytris confertim rugose punctatis, fusco-eeneis virescentibus, margine, ore 

 antennis pedibusque piceo-testaceis, tarsis obscurioribus. Long. *55. 



A female found by Mr. Joshua Child at San Francisco, California, was given me 

 by Mr. S. S. Rathvon. It is very distinct by its large size and other characters. As 

 in the next species the greatest breadth of the thorax is in front of the middle. 



11. D. albicollis, elongata, picea vel pi ceo- testacea, supra fortius albo-pubescens, capite confluenter 

 punctato, clypeo testaceo, thorace longius pubescente fortius subinsequaliter punctato, hexagono, lateri- 

 bus ante medium rotundatim fortius angulatis, angulis posticis valde obtusis, canaliculate, versus latera 

 inaequali, elytris virescentibus margine testaceo, confertim rugose punctatis, lineis utrinque el'evatis 

 tribus subglabris, ore antennis pedibusque testaceis. Long. -44 — *5. 



Burm. Lamell. 2, 2nd, 74. 



Middle States and Lake Superior. Not common. The pubescence of the scutellum 

 is very dense and white. 



12. D. sulcata, elongata, nigro-picea, fortius albo-pubescens, capite confluenter punctato, vertice angu- 



latim vage impresso, occipite medio subleevi, clypeo margine testaceo, thorace eaelato, profunde canali- 



72 



