SPRING NUMBER fi 
Abdomen stout. Spines prominent alone on last four segments, those 
on 9th segment being nearly as long as the tube, those at tip of tube about 
5/6 as long as tube. 
Measurements: Length 2.03 mm.; head, length 0.24 mm.; width at middle 
0.224 mm.; prothorax, length 0.129 mm., width through coxae 0.38 mm.; 
mesothorax, width 0.422 mm.; metathorax, width 0.396 mm.; abdomen, width 
at 5th segment 0.47 mm. Tube, length 0.19 mm.; width at base 0.129 mm., 
at tip 0.06 mm.; very slightly constricted at tip. Dimensions cf antennal 
segments in microns: 
eA a a a aS a eae |e 
erigst hes sess Pa Cec a ee 
WiC) ee [Pe4Oe TP So Se Aa] es eee ea ers 
Described from 1 female collected in Porto Rico from the stomach of a 
lizard, by Mr, G. N. Wolcott. This species may be easily distinguished 
from its nearest congener G. texannus Hood by its greater size. 
Gastrothrips anolis, sp. nov. . 
Female:—Color, head light brown; thorax and all but 10th abbnominal 
segment dark blackish brown; tube dark orange; fore femora yellowish 
brown, fuscus on outer side, middle and hind femora slightly lighter brown 
than head, with decided fuscus tinge toward bases; fore tibiae lighter 
brown than head, middle and hind tibiae darker brown than head, but not 
so dark as abdomen; fore tarsi pale yellow, middle and hind tarsi pale 
brown; 1st antennal segment deep yellow, 2nd yellowish brown, 3rd light 
brown with fuscus tinge at base and on sides, 4th dark brown, 5th to 8th 
dark blackish brown. 
Head as wide as long, widest just behind eyes, at the base only 4/5 
as broad as just behind eyes; eyes medium, occupying only slightly more 
than half the width of the head and not quite 1/3 its length, cheeks set 
with a few small spines; postocular bristles, well developed, yellow; ocelli 
small, the posterior pair opposite the middle of eyes and contiguous 
thereto, anterior ocellus on line with front of eyes; mouth cone reaching 
3/4 across prosternum, constricted near the tip and pointed, labium broad 
and broadly rounded; antennae normal, 1st joint cylindrical, 4th-7th 
stalked. 
Prothorax about 4/5 as long as head and twice as broad (through 
coxae) as long; all the usual spines present, sharp pointed, although the 
anterior marginals are small. Mesothorax only slightly broader than pro- 
thorax, sides nearly parallel, metathorax nearly as broad as mesothorax; 
legs of medium size, fore femora slightly thickened, fore tarsi unarmed; 
legs sparsely clothed with long setae. 
Abdomen stout, broadest at about 6th segment, Spines well-developed 
only on last four segments; those on 9th segment being nearly as long as 
the tube. Tube stout, rugulose, constricted near, but not darkened at tip. 
Terminal hairs scarcely as long as basal width of tube. 
Measurements:—Holotype. Length 1.6 mm.; head, length 0.215 mm., 
width 0.215mm.; prothorax, length 0.172 mm.; width through coxae 0.344 mm., 
