610 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



vol. 48. 



Coviparison of characters of Palaemnema paulina and P. nathalia. 





paulina. 



nathalia. 



Labrum 



Clear cream with lower half or third shin- 

 ing black, the colors sharply denned. 



Bluish or greenish white with lower edge 





black, a dull violet indefinite band, 

 equal in width to the pale basal area, 

 between the pale area and the black 

 edge. 



Clypeus 



Bluish or greenish white, postclypeus be- 

 coming dark with age and eventually 

 black, at least in the male. 



Dingy bluish white with the postcly- 





peus, especially near the frons, tinged 

 with violet. 



Epicranium above 

 the clypeus. 



Shining black with bronze green reflec- 

 tions. 



Shining black with bronze green reflec- 

 tions. 



Pro thorax 



Colors sharply defined, the dark umber of 

 dorsum of thorax continued on the pos- 

 terior and median lobes and to a greater 

 or less extent on the anterior lobe as a 

 central spot, the blue (or yellow or 

 greenish) pale antehumeral stripes car- 

 ried straight across the posterior and 

 median lobes on either side and spread- 

 ing out over the anterior lobe. 



Colors less sharply defined, both as re- 





gards contrast in colors themselves 

 and in pattern. Pattern as described 

 for paulina, but the dorsal color is a red- 

 dish brown and the lateral pale areas 

 are flesh color with violet and dingy 

 shadings. 



Thorax 



Dorsum dark rich umber; antehumeral 

 stripe blue (or yellowish or greenish in 

 younger individuals); sides blue with 

 violet reflections, especially on the mese- 

 pimeron and metepimeron (in younger 

 individuals and in two females these vio- 

 let areas tend to deepen in color, while 

 the other pale areas are yellowish); a 

 dark stripe on the humeral and second 

 lateral sutures, the latter the wider; mes- 

 infraepisternum and propleuron dark. 



Dorsum yellowish or greenish bronze, 





slightly" less in extent than the dark 

 dorsum of paulina; antehumeral 

 stripes lilac; sides about as in paulina, 

 so far as the limited material goes; 

 mesinfraepisternum dark, but pro- 

 pleuron pale, not dark as in paulina. 



Legs 



Coxae all pale; legs flesh color; femora dark 

 to black superiorly; first tibiae darker 

 than the others, especially interiorly. 



Similar to paulina, but all tibiae the 

 same color, and slightly darker than 

 the last two pairs in paulina. 





Abdomen 



Male dorsum of 1 and 2 black, widest api- 

 cally; 3-7 with basal cream-colored rings 

 interrupted middorsally on 3; 8 and 9 

 lilac; 10 black; female similar to the male 

 except last 3 segments; 8 is entirely black, 

 9 has a large irregular dorsal spot pale 

 dingy yellowish, this spot narrowly sepa- 

 rated from the base of the segment in the 

 middorsal line, separated from the apex 

 by its own width, on the sides of the seg- 

 ment produced apically, and separated 

 from the apex by only a narrow margin, 

 widely separated from the lower margin 

 of the segment; 10 and appendages dark; 

 apex of ovipositor clear pale yellow. 



Male similar to paulina, basal rings on 

 3-7 narrower, duller and less produced 

 apically along the lower lateral mar- 

 gin of each segment; 10 apparently 

 with some of the dorsum pale colored; 

 female similar to paulina but the spot 

 on 9 is less sharply defined and is 

 slightly larger. 





Length of abdomen 

 (mm.). 



Male, 37.5-43.5; average of 10, 39.95; female, 

 34-35.5. 



Male, 32.5; female, 30. 



Length of hind 

 wing (mm.). 



Male, 27-32; average of 10, 29.45; female, 

 27-29. 



Male and female, 24.5. 



Postnodals, front 

 wing. 



Male, 21-28 (3 wings have 21; 2, 22; 2, 23; 7, 

 24; 2, 25; 3, 26; 1, 28), average of 20 wings, 

 23.85; female, 22-24 (1 wing has 22; 1, 23; 

 2, 24). 



Male, 22-23; female, 22. 



Postnodals, hind 

 wing. 



Male, 18-23 (2 wings have 18; 3, 19; 3, 20; 7, 

 21; 3, 22; 2, 23), average of 20 wings, 20.6; 

 female, 20-21 (2 wings have 20; 2, 21). 



Male, 19; female, 20-21. 



