REPORT OF THE STATE ENTOMOLOGIST 1907 275 
| (probably P. notata Staeger 39) was sent to me by Professor 
Cockerell from Boulder, Colorado. This is the only species yet 
_ recorded of the genus from this continent. 
NOTE. Bul. 86, page 178, line 5 from the bottom, for plate 36 read 30. 
Genus THALASSOMYIA 
Schiner, 1856 
Compare Scopelodromus, Bul. 86, page 307. See also an article 
DyeCheyrel ineAgch, de Zool, Exp. et Gen. Ser 4, 2. page XXX 
in which the author admits the possible identity of the two genera. 
Key of North American species 
a Yellow species, thorax with ochraceous median. vitta:..... fulwvan. sp. 
aa Dusky species 
b Dorsum of thorax blackish, with indications of three stripes, covered 
with silvery bloom, most conspicuous on the humeri. N. Y..obscura 
bb Vhorax black, humeral spot yellow; length 2.5 mm. Arizona.platypus 
Thalassomyia fulva n. sp. 
Male. Head yellow, rostrum at tip and the basal joint of the 
antennae ochraceous; palpi fuscous, slender, basal joint but little 
longer than wide, second twice, third thrice, and fourth four times 
as long as the first, the last joint quite slender; antennae and 
antennal hairs sordicly yellow, 14 jointed, last joint elongate as in 
Chironomus, eyes bare. ‘Thorax clear yellow, the sternum, meta- 
~notum, and the three thoracic stripes ochraceous, anterior lateral 
margins of the scutellum with dark brown spots which are con- 
tinued in a fine line mesad in the scutellar suture. Abdomen sor- 
didly yellow, the anterior part of each segment paler. Genitalia 
resemble those of T. obscura but apical joint rather longer 
and blunt at the end. Thoracic and abdominal hairs yellow, thoracic 
setae sordidly yellow. Legs yellow, tarsi somewhat infuscated, 
fourth joint less than half as long as the last joint. Fore legs 
wanting in the single specimen. Claws simple, empodium and pul- 
villi inconspicuous; two short black spurs at apex of each tibia. 
Wings hyaline, whitish tinged, veins including cross vein yellow, 
cubitus forks distad of the cross vein, costa produced slightly 
DeyOuGd: prot the velmeky..  Elalteres yellow, length) 355 mm. 
Old Forge, N. Y. : 
NoTtE. The name Thalassomyia fusca which appears on pages 174, 
225, 271, 307; 308, 320, of Bul. 86 should read Thalassomyia ob- 
scura, as both names refer to the saime spectes. 
