NO. moo. f^YXOPSifi OP XEOTRoric.i L LfMyoBix.Jn—.irjEXA ynER. 509 



Ilabitat. — Ilolotype. — Male, Yallahs Valley, Blue Mountains, Ja- 

 maica, Feb. 24, 1911. Allotype. — Female, San Francisco Mountains, 

 Santo Domingo, Sept. 27, 1905 (Aug. Busek, coll.). 



Iloloiypc. — In American Museum of Natural Ilistor}'. 



Allotype. — In U. S. National Museum collection. (No. 14,930). 



The discover}' of tliis tiny species in the Greater Antilles is interest- 

 ing. Its only known relative, S. Jlava, was but recently described 

 from the Eastern United States. The present insect is in perfect 

 generic agreement with flm^a in its shortened antenna", prominent 

 anal angle, sinuosity of second anal, etc. 



Genus CRYPTOLABIS Osten Sacken. 



Cryptolabis Osten Sacken, Proc. Acad. Nat. Sci. Phila., 1859, p. 224; Mono- 

 graphs, vol. 4, 1869, p. 185; Studies, etc., pt. 2, 18S7, p. 205. 



KEY TO THE SPECIES OF CRTPTOL.\BIS. 



1. Rs short, so that the cell first R, forms a rough equilateral triangle; R.s shorter than 



the free portion of M3 beyond the deflection of Cuj 2. 



Rs long, so that the cell first R, forms a triangle that is not equilateral; Rs longer 

 than the free portion of M3 beyond the deflection of Cu, 



tropicalis, new species (Central America). 



2. Thorax wholly grayish-brown; head dark brown; antennae brown 



hidnuala Doane' (West. U. S.). 



Thorax pale but with three black stripes, the middle one double; head blackish; 



antennae black paradoxa Osten Sacken^ (East. U. S.). 



CRYPTOLABIS TROPICALIS, new species. 



Pale, yellowish-brown; radial sector elongate. 



Male. — Length, 3-3.8 mm.; wing, 4.4 mm. Head: rostrum and 

 palpi browni; basal segment of the antcnnaj brown, remainder of 

 the antennje dark brown; eyes elongate-ovate, rather approximated; 

 front bi-o'ivn; vertex narrow between the eyes; vertex and occiput 

 light yellow. 



Thorax: pronotum light yellow; mesonotum: prjescutum light 

 yello\vish-brown with an olive tinge; scutum, scutellum, and post- 

 notum yellowish-brown. Pleurae pale whitish-j-ellow with a light 

 bro\vn line extending from the prosternum obliquely to the base of 

 the halteres. Ilalteres light 3-ello\vish. Legs: coxfe, trochanters, 

 femora, tibia;, light bro^vnish-ycllow, the hind femora lightest yellow; 

 tip of the tibia darker; tarsi light yellowish; segments 4 and 5 darker, 

 brown. Wings hyaline, veins brown, except C, Sc, and R, which are 

 yellow. (See fig." 8.) 



Abdomen: tei^m brown; genital segment light yellow; sternum 

 light yellow. 



A paratype differs in having the rostrum, palpi and front more 

 yellowish; thoracic dorsum more distinctly tinged with bro\vn; the 

 second paraty]5e has a more reddish tinge to the prsescutum. 



1 Joum. X. Y. Ent. Soc., vol. S, pp. IS9, 190, pi. 7, fig. 22, male. 

 ' Monographs, vol. 4, p. 1S6, pi. 2, fig. H, male and female. 



