332 NEUROPTERA. 
female from Florida, one from Little Rock in Arkansas, three from Altamira, and one from San Luis 
Potosi are like the first Altamira male except that the mid-dorsal carina is pale. 
The first Altamira male, alone of the above-mentioned, has a dark transverse band on the anterior surface of 
the frons; since it is otherwise unquestionably simplicicollis and not collocata, it follows that the existence 
of such a frontal band on a pruinose male, from which all the original abdominal markings have 
disappeared, cannot be considered—as I had previously thought—proof that the individual in question 
should be referred to collocata. Among notes made at the Museum of Com parative Zoology in June, 
1899, I find the following: “ Mes. simplicicollis. Carrizo Sprgs. [Texas].  pruinose has a very slight 
trace of a transverse band on frons; apps. are whitish; a similar condition exists in ¢ ¢ from Louisiana, 
Florida, and Georgia; in 1 Fla. g, 1 Matamoros ¢,and 1 ¢ Samana, Hayti, the frontal band is very 
distinct.” 
No constant differences between individuals from Altamira and from the vicinity of Philadelphia have been 
found. 
Hab. Unirep States !—5, south from New Hampshire ®, Michigan 3, and Montana °, 
and east of the Rocky Mts., also Utah (2?) 3, Ontario in San Bernardino County, 
California (Snodgrass, coll. P. P. C.: 1 3)—Mexico, Matamoros’, Altamira in 
Tamaulipas [3 ¢, 11 ¢], San Luis Potosi [2 ¢, 49] (Hoag, coll. P. P. C.), 
Guadalajara (McClendon, U. S. NV. M.), Huastepec [Huastec 3] (Saussure?); BritisH 
Honpuras, Belize (Miller, coll. Wilmsn.: 1 ¢ ).—Banamas?, Governor’s Harbour, 
Eleuthera I. (Moore & Bullock, Univ. of Pa. Exp.: 1 2); Wusr Inpies, Cuba? ? 
(Poey, coll. Amer. Ent. Soc.: 1 3), Isle of Pines!®, Kingston (Fox) in Jamaica ® 
(Johnson: 1 3), Samana in Hayti (Frazar, M. C. Z.). 
Taken in January (Belize), June (Altamira), August (Guadalajara), September (San 
Luis Potosi), and November (Eleuthera), | 
The male from Ontario, California, is pruinose but has no dark frontal band; one 
from Altamira and two from San Luis Potosi are pruinose and have the dark frontal 
bands; all the other individuals from these last two localities are clearly stmplicicollis. 
b. Subsp.? collocata. 
Mesothemis collocata, Hagen, Syn. Neur. N. Amer. p. 171 (1861)*; Ann. Rep. U.S. Geol. & 
Geogr. Surv. Terr. (Hayden’s) 1873, p. 587 (1874)’; Proc. Bost. Soc. Nat. Hist. xvii. 
p. 77 (1875)°; Proc. Davenp. Acad. Sci. i. p. 205 (1876) *. 
Mesothemis simplicicollis, var. collocata, Calvert, Proc. Calif. Acad. Sci. (2) iv. p. 552, t. 17. 
figg. 108-106 (details ¢ ¢) (1895)’; Elrod, The Museum (Albion, N.Y.), ii. p. 285 (1896) °; 
Ent. News, viti. p. 39 (1897) "; Currie, Proc. Ent. Soc. Wash. v. p. 803 (1903)*; Needham 
& Cockerell, Psyche, x. p. 139 (1908) *; Osburn, Ent. News, xvi. p. 195 (1905) ©. 
The youngest males before me have no dark lines on the thorax, no dark anterior frontal band, superior 
appendages yellowish, brownish at tips. The frontal band is present in one example in which the thorax 
is yet unmarked, the superior and inferior appendages yellowish-brown. No females which I have seen 
show the frontal band. In both sexes the humeral and second lateral thoracic sutures may become 
marked with black lines, but the additional black lines described for a few simplicicollis on page 331 have 
not been met here. The appendages of the males become almost black in the pruinose stage, those of 
the females remain yellow. 
Hab. British Cotumpra, Langford Lake, Victoria?®°; Unirep Srates, Seattle in 
Washington (R. Osburn in litt.), Yellowstone?®? [Adams: 1 3], City Creek Cafion 
