IQQ William Morton Whkeler 



with a wihte film. When the block of amber was trimmed 

 and polished most of the joints of the antennoe were unfortunately 

 cut away. The mandibles, however, are so unlike those of any other 

 Dolichoderince, that I have had to make it the type of a new genus 

 and new tribe. The thorax and petiole recall these parts in Paraneuretus 

 but the resemblance in other respects seems to be merely superficial. 

 The mandibles would seem to be adepted to some peculiar function, 

 and their resemblance to the mandibles of Polyergus and Strongylo- 

 gnathus suggests that Pityomyrmex tornquisti may have been a parasitic 

 or slave -making ant. 



Subfamily Camponotinw. 



Tribe Plagiolepidini Forel. 



Genus Plagiolepis Mayr. 



Plagiolepis siiccini Ern. Andre. 



Flagiolepis succini Ern. Andre, Bull. Soc. Zool. France, XX, 1895, p. 81, 83, $: 

 Handlirsch, Foss. Insekt. 1908, p. 859. 



Worker. Length 4 mm. 



Large, brownish black, with short, erect hairs. Antennae stout, 

 fanicle clavate. Thorax constricted between the meso- and epinotum. 

 Legs long and slender. Scape proportionally short, not surpassing the 

 posterior border of the head; funiculus robust, very strongly and 

 gradually thickened from the base towards the extremity, joints 3 — 4 

 transverse, the others about as broad as long, except the first, which 

 is as long as the two following joints together, and the last, which is 

 a little longer than the two preceding joints. Head of the same form 

 as in P. custodiens Smith, which lives today in South Africa; eyes 

 rather large and situated near the middle of the sides of the head. 

 Thorax with the pro-mesonotal suture wellmarked and rather strongly 

 constricted above between the meso- and epinotum. Petiolar node 

 moderately thick, inclined forward, its superior border very slightly 

 excised. Legs rather long, slender. Body brownish black, with scattered, 

 short, erect hairs, which are more oblique on the antennae and legs. 

 Sculpture not apparent. 



Andre's description here translated is based on a single specimen. 

 I have not been able to recognize the species in any of the material 

 submitted to me. It is decidedly larger than any other Plagiolepis 

 described from the amber and its close resemblance to the South 

 African P. custodiens would seem to indicate that it may be a copal insect. 



