(3) 
ERYTHEMIS. 339 
[Browning: 1 3,12] (coll. P. P. C.) (Skinner, A. N. S.: 1 2), Ogden (MC. Z.), 
Spring Lake 4 and Beaver Valley (Engelhardt & Doll, Brooklyn Inst.: 1 3,19) in 
Utah, Reno in Nevada (Morrison, 1878, M. C. Z.), Pecos River, Texas}, Dimmit Lake 
near Roswell, New Mexico 9, Winslow (Schwarz & Barber 8) in Arizona (C. U. lot 35, 
M, C. Z.; see footnote, page 104, anted), San José (A. NW. S.: 1 ¢), Wilson’s Lake 
near Pasadena [Grinnell: 1 3], Los Angeles [Davidson®: 1 2] and San Diego 
(Crotch *) in California ; Lower Catirornia, Mesa Verde ®, Miraflores ®, San José del 
Cabo 5 [Hisen: 4 3,3 2 | (coll. P. P. C.).—Mexico (Schumann: 1 3), Las Bocas in 
Durango (Batty, A. M. N. H.: 1 2), Guadalajara (Schumann: 1 @ ) and Juanacatlan 
(McClendon, U. 8S. N. M.), Tacubaya [2 2], Mexico City [1 ¢,1 2] (Barrett, coll. 
P. P. ©.) (Schumann, H. H. Smith: 3 3,2 23 coll. Deam: 2 6, 3 3), Lumija in 
Chiapas (coll. Westcoté: 1 ¢ ). 
All the dates of capture of specimens of this subspecies fall between April? and 
October®. Mr. Grinnell’s notes mention it as near Pasadena in May, June, and 
September. The examples from Mexico City and Tacubaya are dated from June to 
August. 
The single male from Lumija in Chiapas is pruinose and has a dark anterior frontal 
band. In view of what has been stated on page 332 concerning this band, and of the 
undoubted occurrence of simplicicollis at Belize, it is possible that the Lumija example 
may be simplicicollis and not collocata. 
2. Erythemis peruviana. 
Lilellula peruviana, Rambur, Névr, p. 81 (1842)*; Selys, Rev. Odon. Eur. p. 324 (1850) *. 
Erythemis peruviana, Kirby, Trans. Zool. Soc. Lond. xii. t. 55. fig. 3 (venation) (1889) *; Ann. & 
Mag. Nat. Hist. (6) xix. p. 608 (1897)*; (7) iii. p. 367 (1899)*; Carpenter, Journ. Inst. 
Jamaica, ii. p. 261 (1896) °; Prinzessin Therese, Berl. ent. Zeitschr. xlv. p. 262 (1900) ’. 
Libellula bicolor, Erichson, in Schomburgk’s Reisen Brit. Guian. iii. p. 583 (1848) °. 
Erythemis bicolor, Hagen, Syn. Neur. N. Amer. p. 169 (1861) ° (excl. Choco ?); Stett. ent. Zeit. 
XXx. p. 263 (1869) ”. 
? Libellula rubriventris, Blanchard, in Orbigny’s Voy. Amér. Mérid. vi. 1, p. 217, t. 28. fig. 4 
(¢ color) (1843) ™. 
g. The series from Casiguana permits of tracing the colour-changes not only on thorax and abdomen as 
briefly stated on page 330, but also of those on the head (cf. Selys”). 1. The youngest male with thorax 
and abdomen mostly luteous or pale green (except for the dark antehumeral stripes) has the vertex, 
superior surface of frons, and labium pale green, clypeus and anterior surface of frons luteous, a dark 
brown transverse band separating the inferior luteous from the superior green of the frous, labrum 
(except for two pale basal points) and a median band on the labium blackish. 2. A little older example 
has the base of the vertex, anterior surface of frons, sides of clypeus, entire labrum, a wider median 
labial band, dark brown or blackish. 8. Later the blackish spreads over the clypeus and labium, but 
the superior surface of frons, tip of vertex, and median part of thoracic dorsum are still pale green. 
4, The frons and vertex become completely black and the abdomen red, before the pale mid-dorsal thoracic 
area has disappeared from view. 5. When the thorax and base of abdomen have become pruinose the 
superior surface of the frons is dark metallic-blue. 
BIOL. CENTR.-AMER., Neuropt., May 1907. aX 
