BibUographical Notice. 425 



lis quatuor flavis notatis, profundo baud crebre punctatis ; corpore 

 subtus flavo-tostncco. 

 Long. 3-3^ lin., lat. 2i-2if liu. 



Head pitchy brown, opaque, but with no distinct punctua- 

 tion ; epistoma truncate in front, narrowed tOAvards tlic eyes, 

 witli the front mar<;-in obscure yellow. Thorax pitchy in the 

 middle, dirty yellow at the sides ; disk with four strongly 

 punctured shallow impressions, the sides deeply but not 

 thickly punctured. Seutellum black, or nearly so. Elytra as 

 long as broad, very slightly rounded at the sides, bluntly 

 rounded at the apex, pitchy brown, the discoidal part rather 

 darker, especially the raised parts ; the margins have four 

 large yellow spots, one on each side about the middle, and 

 another on each side of the apex : each elytron has a small 

 tubercle on the shoulder, and between this and the scutellum 

 a carina turned outwards posteriorly ; in the middle there is a 

 rather strong trigonal tubercle, from the angles of which two 

 very short carinte are directed forwards, one towards the 

 lateral margin, and one long ridge directed backwards nearly 

 to the apex ; this ridge is raised in the middle ; between this 

 ridge and the lateral margin there are two small tubercles. 



Hah. Queensland, Mackenzie River. Brit. Mus. 



BIBLIOGRAPHICAL NOTICE. 



Annxud litport of the United-States Geolotjiccd and Geographical 

 Sttvi'iy of the Territories^ embracing Colorado and parts of adjacent 

 Territories^ being a lieport of Progress of the Ex^doration for the 

 year 1874. By F. V. Haydex, I'nited-Statcs Geologist. 8vo. 

 508 pages, with numerous Plates and Maps. Washington, 1870. 



The work of the officers of the United-States Geological and Geo- 

 graphical Survey presents frequently features of considerable diffi- 

 culty. In the sparsely populated areas of the West the parties 

 intrusted with the duty have to be specially organized both for 

 subsistence and scientific work, inasmuch as their labours are often 

 conducted in territories where no assistance can be obtained from 

 the locality surveyed. Thus the Colorado survey, conducted by 

 Dr. Haydcn, was separated into seven divisions, to each of which 

 was assigned s])ecial duties — as the topographical and geographical 

 section, those for the primary triangulation and jihotography, as 

 well as a quartermaster's department, on which devolved the trans- 

 port and supply. Each of these divisions consisted further of a 

 complete staff of scientific observers, comprising botanists and meteo- 

 rologists, as well as those more directly concerned in tlie actual 

 work of surveying. 



