250 DRAGONFLIES OF NORTH AMERICA 
52. BrecHMoRHOGA Kirby 
Large dragonflies of hoary appearance due to a short grayish pubes- 
cence that covers head and body. A single Sonoran species enters our 
southwestern border. Its nymph is unknown. 
236. Brechmorhoga mendax Hagen 
Hag. ’61, p. 164: Mtk. Cat. p. 174: Ris ’13, p. 861: Kndy. ’17, p. 605, 627. 
Length 57 mm. Expanse 88 mm. Tex., Calif. 
A rather stout grayish species with clear wings and a half ringed abdomen. 
Face yellow, including vertex, clothed with short whitish pubescence. Thorax 
clothed with a similar longer pubescence and with the erect fringe of white hairs 
on the collar. Front of thorax with 2 broad brown stripes beside the pale carina, 
abbreviated above. Sides with a broad brown stripe upon the humeral suture 
(stripes 2 and 3) and 2 additional stripes on the succeeding suture (4 and 5), 
confluent above, all on a yellow ground. Legs brown, paler at base and on front 
femora to knees externally. Wings hyaline with a short black stigma and a tinge 
of brownish on extreme base, broader on hind wings. Abdomen mostly pale on 
moderately swollen basal segments, blackish beyond; 2 and 3 narrowly annulate 
with black on carina; 3 and 7 with large diffuse, dorsal, paired spots, largest on 7. 
There is a touch of yellow at sides of 8 and 9. 10 and appendages black. 
Kennedy (’17) says of them: ‘‘These usually had short beats in the 
shade of the occasional large willow trees that grew on the gravel 
beaches.” 
‘“‘The males were taken while flying on short beats over the stream. 
The female was captured while cutting S’s and figure 8’s through a 
swarm of small Diptera. She was indifferent to several passes I made 
at her before I succeeded in netting her. This species is the most 
graceful on the wing of any odonate with which I am familiar. Fre- 
quently they fly with a swinging mayfly-like motion. In the heat of 
the day they floated around among the tree tops.”’ 
53. PattrorHEemMis Karsch 
Large rusty red dragonflies with strongly tapered abdomen. The 
wings are very broad at the base and pointed at the apex. The stigma 
is rather small, its outer end a little more oblique than the inner. The 
triangle of the fore wing points inward, vein Cu being strongly bent. 
The toe of the anal loop is long and narrow. 
The nymphs (Ndm. ’04, p. 699) are very smooth and very dark 
colored. There are low dorsal hooks on abdominal segments 2 to 6, 
diminishing in size to rearward. The lateral spines on 8 and 9 are short, 
sharp and straight. The teeth on the front border of the lateral lobes 
of the labium are separated by deep notches. 
