70 Mr. It. E. Turner on Fossorial Hymenoptera. 



P alarm hastatifrons , sp. n. 



J . Niger ; abdomine segmentis tribus basalibus, pedibus inter- 

 mediis posticisque, femoribusque anticis infra fulvis ; clypeo, 

 mandibulis, apice excepto, orbitis internis usque ad antennarum 

 basin, macula frontali, longitudinali, hastiforrai, mesonoto macula 

 parva angulis anticis, tegulis tibiisque tarsisque anticis flavis ; 

 flagello supra sordide flavo ; alis hyalinis, leviter infuscatis, venis 

 testaceis ; ano tridentato. 



$ . Mari simillima ; abdomine fere omnino fulvo. 



Long., d 8 mm., $ 11 mm. 



$ . Clypeus rounded at the apex, shining, with sparse and 

 minute punctures ; front opaque, coriaceous, clothed with 

 very delicate silver pubescence. Eyes separated on the vertex 

 by a distance slightly exceeding the length of the second 

 joint of the flagellum ; posterior ocelli somewhat elongate, 

 oblique and almost touching the eyes. Mandibles not excised 

 on their outer margin. Second joint of the flagellum dis- 

 tinctly longer than the third, twice as long as the first and 

 nearly twice as long as its apical breadth, the flagellar joints 

 not arcuate beneath. Thorax shining, rather sparsely but 

 very deeply punctured ; median segment strongly obliquely 

 striated, broadly concave in the middle, the sides of the 

 segment finely and closely obliquely striated, the posterior 

 slope finely rugulose, with a raised V-shaped median area. 

 Abdomen rather sparsely punctured ; first tergite deeply and 

 widely emarginate anteriorly ; second sternite gradually raised 

 into an acute transverse carina at the apex. Seventh tergite 

 tridentate at the apex, the middle spine the longest. Second 

 cubital cell petiolate, the petiole very short ; third cubital 

 cell half as long again on the radius as on the cubitus; first 

 recurrent nervure received close to the base of the second 

 cubital cell, second just beyond three-quarters from the base. 

 ? . Eyes separated on the vertex by a distance only equal 

 to the length of the first joint of the flagellum, nearer to each 

 other than in the male ; second joint of flagellum at least 

 twice as long as its apical breadth. Sixth tergite elongate, 

 pointed at the apex, witli sparse elongate punctures. Basal 

 joint of fore tar.sus with six spines. 



Hah. Khan Yunnus, 12 miles S.W. of Gaza, June 1917 ; 



1<?,4 ? ?. 



This belongs to the group of P. lepidus, Klug ; but, in 

 addition to the strong colour-differences, the abdomen is much 

 more sparsely and more strongly punctured ; the eyes in both 

 sexes are nearer together on the vertex, and the carina of the 

 second sternite is acute, not broad as in <J lepidus. 



