306 



PSrCHE. 



Fcliniaiy 1S90. 



Length, 

 Exp wings, 

 Pteroytiema. 



green, with the transverse elevated rim 

 not interrupted, but united with the 

 opposite one at a right angle ; a dorsal 

 fuscous fascia, interrupted and partly 

 angnlose on the abdomen after the basal 

 segments ; male appendages dark fus- 

 cous, straight, enlarged towards the 

 apex, with ;ui internal excision on the 

 tip and a sharp external apical spine ; 

 inferior very short, quadrangular, trans- 

 verse ; those of the female lanceolate ; 

 ■wings hyaline, flavescent or not in the 

 middle ; costa yellow, also the narrow 

 pterostigma ; membranulu black, white 

 at base ; antecubitals i6 — 19, postcubi- 

 tals 7 — 9. 



6S-78 

 104-1 16 

 7 



IIab. St. John, New J^runswick, 

 August ; Canada, St. Hyacinth, Qiie- 

 bec, Provancher ; Hamilton, Ontario, 

 end of August, Moffat. United States: 

 Mass., Magnolia, Milton, Brookline. — 

 N. v., N. J., Pa., Philadelphia.— Md., 

 Kent., S. C, Geo., Fla., Mo., La., 

 Tex., 111., Mich., Minn., Dak., Nev., 

 Cab, Or. The Dalles, June.— N. Mex., 

 Ariz., Alaska, Sitka. 



Mexico : Matamoras, Jalapa, Amu- 

 la 6000 ft.— Costa Rica. 



Antilles: Cuba, Poly; Martinique. 



China : Petcheli Bay, April. Osten 

 Sacken ; Kamtschatka. 



Sandwich Islands : Oahu, Plonolulu, 

 Taiti (Selys). 



I have described as A . strenuus a 

 female, now in the Copenhagen muse- 

 um, from Oahu, collected during the 

 circumnavigation of the Galathea. 



The (July difference from A. jinihis 

 consists in the shape of the occiput (the 

 lateral lobes being longer, more elevated 

 and quadrangular) and in the gigantic 

 size. Length, ^J\ mm., exp. of v\ ings, 136 

 mm. The specimens of A. juniii'^ 

 from Oahu are all verv large, but the 

 size of this giant is eiitirelv unusual. 

 I have before me a number from Oahu 

 but none of them similar in size. 



3. Amax walsinchami. 



Anax %valsing]iaiui M'Lachlan \\x\t. 

 mo. mag., 1883, ^'- -°' ^^7, 171. 



Anax validus Hagen Svnop. Odon. 

 N. A., 1S73, 32 (no description) ; Cabot 

 Mem. mus. comp. zool., 1881, v. 8, iv 



Head yellow, front with a round 

 black spot in a blue ring, anteriorly 

 bordered with a fine black line ; vesicle 

 black, transversely yellowish aboNc ; 

 antennae black, seta brownish ; occiput 

 yellow, emarginate ; head behind vel- 

 low, with a superior narrow blackish 

 margin ; thorax green ; feet black, 

 femora reddish brown, the anterior 

 yellow beneath ; length of the posterior 

 femora about 14 mm ; abdomen very 

 long (male), especiallv segments 5 — 6, 

 shorter in the female ; blue at base, 

 suture of second segment interrupted at 

 the middle, a dorsal blackish band, 

 beginning on the fifth segment and 

 finishing on the ninth Avith an apical 

 elongate blue spot on each side, and a 

 basal whitish one on segments 8 and 9 ; 

 the last segment as broad as long (male) 

 blue, margin bkick and irregularly 

 black on the dorsal line ; superior appen- 

 dages of the male, short, broad, brown, 

 flattened and foliaceous, upturned on the 



