WINTER NUMBER 51 
rather long hairs, 3 interlocated ones on fore wing. Abdomen narrow at. the 
base, widest at about segments 7 and 8; each segment provided with one or 
more rather thick but colorless bristles which become progressively longer 
posteriorly, those on segment 9 being nearly as long as the tube, blunt. 
Tube about two-thirds as long as the head, twice as wide at the base as 
at the apex, not abruptly contracted at the apex; terminal bristles about 
as long as the tube. 
Measurements: Total length about 1 mm. Head, length .168 mm., 
width .173 mm.; prothorax, length .109 mm., width .21 mm.; mesothorax, 
width .224 mm.; abdomen .187 mm.; tube, length .11 mm., width at base 
.053 mm., at apex .028 mm. 
Antennae: 
Seatientl swe ee ei a ee ee 
erent hes CAS se es A 291 408957 nee om he 40 | 29 
| 17 | 13 microns 
i CIN ee ree | 37 | 27 | 27 
Total length .29 mm. 
Described from two females found with the preceding species. 
Hood’s description of the genus Gastrothrips will have to be modified 
in two respects to admit this species. The tube is not abruptly contracted 
at the base and there are three interlocated bristles on the fore wing. In 
shape of head, eyes, prothorax, and mouth cone it agrees with that genus. 
Only the fourth antennal segment seems to bear a triangular process 
beneath. 
88. Haplothrips angustipennis Wats. 
Plant City, Fla. T. H. Hubbell, Coll. Described from Georgia. 
89. Microthrips piercei Morgan. 
_ On Cassia siamea at Miami, Fla. Feb. 7, 1924. W. T. Owrey, Coll. 
90. Scirtothrips owreyi n. sp. 
Color dark brown; prothorax and especially abdomen darker, head, 
pterothorax, all femora and antennae somewhat lighter, all tibiae, tarsi, 
and antennal segment 3 a much lighter yellowish brown. 
Measurements: Total body length 1 mm. to 1.13 mm.; head, length 0.11 
mm., width 0.18 mm.; prothorax, length 0.16 mm., width 0.22 mm.; ptero- 
thorax, length 0.18 mm., width 0.22 mm.; abdomen, width 0.36 mm.; an- 
tennae, total length 0.31 mm. 
Sesment. 6 er Pa eae hie ag Re a te eC cl) 
Mensthee eee [n26) (44 | 585 bee) | 48esies | ec 
VAG 0g See se a een oOu) 2ouleaceon | ea0eo 6 microns 
Head rounded in front, considerably elevated between the bases of the 
antennae which it slightly overlaps. Vertex cross striated. A heavy black 
spine inward from each eye and a very long one arising from below the 
base of each antennae on the ventral side and two rather short ones midway 
of each cheek behind the eyes; cheeks arched and roughened. LHyes large, 
slightly protruding, roughly triangular in shape, facets large. Anterior 
ocellus large, yellow and situated about opposite the anterior margin of 
eyes. In one specimen the posterior ocelli are absent, in the other very 
conspicuous, situated at the inner-posterior corner of each eye, margined 
on the inner side with dark brown crescents. 
