MORGAN HEBARD 171 



ilorsal surface of head, lateral margins parallel, surface smooth, transverse and 

 longitudinal sulcus sul)ol)solete, a few nodules weakly defined laterad. Meso- 

 notum with surface smooth, furnished cephalad and meso-laterad with moder- 

 ately numerous small nodes. Metanotum with surface smooth, furnished 

 laterad with a few small nodes. Median segment smooth. Dorsal abdominal 

 segments longitudinally multicarinulate, the first two with a very few small 

 nodes laterad. Seventh dorsal abdominal segment nearly twice as long as 

 eighth, which is subquadrate. Ninth (ultimate)"^ dorsal abdominal segment 

 very elongate, nearly as long as combined length of seventh and eighth seg- 

 ments, surface smooth with a medio-longitudinal carina, form lanceolate, with 

 apex sharply rounded. Ventral surface of insect smooth, without earinulae 

 or nodules. Cpercuhnn very elongate, rounding rather sharply distad with 

 apex briefly fissate, not extending beyond apex of abdomen. Limbs simple, 

 unarmed. Cephalic femora strongly laminate. Tarsal joints verj' elongate, 

 metatarsus equal to combined length of succeeding three joints, ventral sur- 

 faces heavily supplied with very delicate hairs, apices of four proximal joints 

 occupied by moderate pulvilli. Moderate arolia present between the delicate 

 tarsal claws. 



Length of body, 60; head, 4.7; dorsal surface of head. 4.3; pronotum, 3; 

 mesonotum, 13.7; metanotum, including median segment. 9.3; sixth dorsal 

 abdominal segment, 3; .seventh, 3.8; eighth, L9; ninth (ultimate), 5.3; opercu- 

 lum, 7.9; cephalic femur, 17.3; cephalic tibia, 18.3; median femur, 12; caudal 

 femur, 15.2; caudal tibia, 16:8; caudal metatarsus, 2.8 mm. Width of head, be- 

 hind eyes, 2.9; pronotum, 2.6; abdomen, at widest point, 3.3; cephalic femur, at 

 widest point, 1.7 mm. 



Coloration immaculate, pale green, faded to yellowish on median portion of 

 body. In life probably light bice green, as are the cephalic limbs in this dried 

 specimen. 



The type of this species is unique. 



LITOSERMYLE new genus 



Relationship with Sennyle is evident. Conipared with the 

 female of the genotype, Sermyle mexicana (Saussure),^^ the female 

 here described differs in the elongate, not globose, head; prono- 

 tum with transverse sulcus inconspicuous; ninth dorsal abdominal 

 segment elongate, not quadrate; sixth ventral abdominal segment 

 unspecialized; operculum elongate and ventral surface of sub- 

 equal width to its truncate apex; proximal portion of ovipositor 

 valves similarly fused and not concealed, but not broad and con- 

 spicuovisly convex, and cephalic femora nuich more strongly 

 lamellate. 



'^ A supra-anal plate is not developed. 



'' A Mexican female in tlic Hel>ard Collection is before us. 



TRANS. AM. ENT. SOC, XLV. 



