52 NEUROPTERA. 
Megaloprepus ceruleatus, Rambur, Névr. p. 290 (1842)°; Selys, Bull. Acad. Belg. (2) x. p. 18 
(1860)*; Mém. Couron. Acad. Belg. xxxviii. p. 7 (1886)°; Hagen, Neur. N. Am. pp. 63, 
307 (1861)°; Kirby, Cat. Odon. p. 119 (1890)"; Martin, Boll. Mus. Torino, no. 240 
(1896) °; Prinzessin Therese, Berl. ent. Zeit. xlv. p. 263 (1900) °. 
Libellula cerulea, Donovan, Naturalist’s Repository, iv. t. 110 (entire insect) (1834) *. 
Hab. Mexico +, Vera Cruz 5 (Sallé, M,C. Z.: 1 2), Atoyac (Schumann: 3 3,1 2), 
- Presidio in Vera Cruz (Barrett, coll. P.P.C.: 1); British Honpuras (Blanca- 
neaux: 16); Guaremata* (coll. McLachlan: 1 3), Cubilguitz [1 ¢], San Juan 
[3 ¢, 22], Panzos [1 3 ], Sabo [1 ¢, 12], and Senahu [2 g] in Vera Paz 
(Champion); Honpuras, San Pedro Sula (H. K. Burrison, MC. Z.: 16); 
Nicaragua, Machuca River (coll. A. B. Nichols), Mosquito shore* (Shakespear, 
1779 1°); Costa Rica (A. N.8.: 25; U.S. N.M.: 19), Caché (Rogers: 13,2 2); 
Panama, Chiriqui4 (Ribbe: 1 9), Volcan de Chiriqui below 4000 feet [4 3,10 9], 
Bugaba 800-1500 feet [16 g, 11 2] (Champion), Darien ®—Co.omBia, Bogota + 
(coll. P. P.C.: 1 2), Santa Fé de Bogota ®, Choco 4; Gutana, Demerara (coll. P. P. C.: 
1 ¢); Ecuapor®; Bo.tvia, road to Coroico, Yungaz (W. J. Gerhart, coll. A. N.S.: 
1 @). 
In his earlier work 4, de Selys gave as a sexual difference in this species that the 
space between the dark transverse band and the tip of the wings was hyaline in 
the male; while in the female, part of this space was milky and opaque, only the tip 
itself remaining hyaline. While a similar milkiness 2s present on the same‘area in 
the males, it differs in this respect: that the veins and veiulets traversing it always 
remain dark in colour, while those same veins and veinlets in the female are pale, 
almost white. 
The material before me confirms his conclusion ® that the supposed race latipennis 
cannot be maintained as distinct. 
It is worth while recording some variations which occur in the individuals of this 
species from one and the same locality, viz. Bugaba. The two extremes in size are: 
abdomen, ¢ 73-100, 2 64-85; length of hind wing, ¢ 65-88, 9 54-75; greatest 
width of front wing (measured at right angles to the costa), ¢ 14-19°5, 2 13:°5- 
22-5 mm. In both sexes a gradual series may be traced from individuals in which 
the inner margin of the dark band on the front wings coincides with the point of 
origin of the nodal sector to those in which that margin is 12 celis beyond that point 
of origin. 
The smaller dimensions given above are less than are to be found in any of the 
material from the other localities quoted, and less than any hitherto recorded. Some 
of the specimens in the present collection, however, exceed the largest individuals from 
* Donovan gives the ‘ Muskito shore ” as the locality for the insect figured by Drury’*, who stated that 
t was from the “ Bay of Honduras.” 
