FREE BOOKS

Author's List




PREV.   NEXT  
|<   138   139   140   141   142   143   144   145   146   147   148   149   150   151   152   153   154   155   156   157   158   159   160   161   162  
163   164   165   166   167   168   169   170   171   172   173   174   175   176   177   178   179   180   181   182   183   184   185   186   187   >>   >|  
ein straight, parted by about one-third of its length from the border and by much more than its length from the praebrachial transverse; alulae cinereous; halteres testaceous. Length of the body 5 lines; of the wings 10 lines. Gen. TRYPETA, _Meigen_. 15. TRYPETA RORIPENNIS, n. s. _Foem._ Fusca; capite nigro, facie alba; antennis nigris rufo-fasciatis; thorace vittis quatuor canis; abdominis segmentis testaceo marginatis; pedibus nigris, tarsis halteribusque testaceis; alis nigris, punctis plurimis albis. _Female._ Brown. Head black; face white; antennae black, third joint red, linear, rather long, black towards the tip; arista plumose; thorax with four hoary stripes; abdominal segments with testaceous hind borders; legs black, tarsi testaceous; wings black, with very numerous white points, a few of which are rather larger than the others; discal transverse vein straight, parted by less than its length from the border, and by more than twice its length from the praebrachial transverse; halteres testaceous. Length of the body 2 lines; of the wings 4 lines. Catalogue of Hymenopterous Insects collected by Mr. A. R. WALLACE at the Islands of Aru and Key. By FREDERICK SMITH, Esq., Assistant in the Zoological Department, British Museum. Communicated by W. W. SAUNDERS, Esq., F.R.S., V.P.L.S. [Read December 3rd, 1858.] This Collection of Hymenoptera is the most important contribution which has been made to the Aculeata through the exertions of Mr. Wallace; in point of geographical distribution, it adds much to our knowledge. In the Aru, Key, and neighbouring islands, we meet with the extreme range of the Australian insect-fauna; and as might be expected, it is found amongst the Vespidious Group, and in one or two instances in the Formicidae. The latter, being frequently conveyed from one island to another, can perhaps scarcely be considered indicative of natural geographical distribution. Of the forty-six species of the Formicidous Group, only six were previously known to science. Of the genus _Podomyrma_ here established, one species only, from Adelaide, was previously known; it is one of the most distinct and remarkable genera in the family. The _Pompilidae_ are species of great beauty, some closely resembling those of Australia in the banding and maculation of their wings; amongst the _Vespidae_ will be found some of the most elegant and beautiful forms in the whole of that protean family of Hymenoptera.
PREV.   NEXT  
|<   138   139   140   141   142   143   144   145   146   147   148   149   150   151   152   153   154   155   156   157   158   159   160   161   162  
163   164   165   166   167   168   169   170   171   172   173   174   175   176   177   178   179   180   181   182   183   184   185   186   187   >>   >|  



Top keywords:

testaceous

 

length

 
transverse
 

nigris

 
species
 

previously

 

family

 

distribution

 

geographical

 

Hymenoptera


border

 
Length
 

parted

 

straight

 
halteres
 
TRYPETA
 
praebrachial
 

Australian

 

insect

 
Formicidae

alulae
 

cinereous

 

expected

 

instances

 
Vespidious
 
Aculeata
 

exertions

 

Wallace

 

important

 

contribution


neighbouring
 

islands

 

knowledge

 

extreme

 

closely

 

resembling

 

Australia

 

beauty

 

genera

 
Pompilidae

banding

 
maculation
 
protean
 

beautiful

 

elegant

 
Vespidae
 

remarkable

 
distinct
 

scarcely

 
considered