98 UNIVERSITY OF COLORADO STUDIES 



nae nine-jointed (or in a few cases eight-jointed, in some exotic genera with more than 

 nine joints). 



Subfamily ALLANTINAE 



Prepectus wanting; proepisternum ventrally very large and meeting in the middle 

 where it is truncate; presternum triangular in outline; metapostnotum large; mandibles 

 long, strongly falcate; basal vein joining the costa at or very near the origin of the cubitus; 

 anal cell of the fore wings with an oblique cross-vein; transverse radius normally present. 



Tribe Taxonini 



Hind basitarsus distinctly longer than the following joints; posterior calcaria long; 

 metapostnotum large and nearly flat; metascutellum not closely sculptured; pronotum 

 large laterally. 



Genus MACREMPHYTUS MacGillivray 



First transverse cubitus wanting; transverse median vein very close to basal; pedi- 

 cellum much longer than wide; head and thorax not closely sculptured. 



Larvae of an unknown species were very abundant in the grounds of the court- 

 house at Boulder in 1908. 



Tribe Allantlni 



Hind basitarsus shorter than or subequal with the following joints; posterior calcaria 

 short, robust; pronotum small laterally; metapostnotum rather short, flat; metascutellum 

 without punctures; head and thorax finely sculptured. 



Genus ALLANTUS Panzer 



Hind wings without a closed discal cell; transverse median of the fore wings dis- 

 tinctly basad of the middle of the cell; first transverse cubitus wanting; clypeus emar- 

 ginate; tarsal claws cleft; cheeks nearly as broad as che greatest cephal-caudad diameter 

 of the eye. 



This generic name replaces Emphytus Klug. 



(10) A. gillettei (MacGillivray). Posterior femora red or reddish; four anterior 

 femora blackish; fourth abdominal segment white; wings hyaline, slightly dusky; 

 venation dark brown. 



Boulder, Colorado, May 17, 1902 (S. A. Johnson). This species lives on straw- 

 berries. 



Genus APfflLODYCTIUM Ashmead 



Hind wings without a closed discal cell; transverse median of the hind wings dis- 

 tinctly basad of the middle of the cell; first transverse cubitus present (normally) ; clypeus 

 emarginate; tarsal claws cleft; cheeks distinctly narrower than the cephal-caudad diam- 

 eter of the eye. 



(n) A. rubripes (Cresson). Black; margin of clypeus, labrum, and margin of 

 pronotum pale; legs below the trochanters red; wings dusky hyaline; venation black; 

 stigma pale at base. 



Female; Boulder, Colorado, June 1, 1906 (S. A. Rohwer). 



