100 
TRAUB & AUDY 
Gahrliepia (Schongastiella) gammonsi n. sp. (figs. 53-60). 
Diagnosis. — Near G. ( 5 .) helata n. sp. in that the scutum is nonligulate and the third coxae 
bear 2 setae. Readily separable by virtue of the long narrower scutum (PW:SD=5i: 103 = 
0.50), with PSB 82^5 not approximately 66; with dorsal setal rows commencing 2-6-6-6-5 
not 2-4~8-8. 
Description of Larva. — Body: About 358(4 in length, 245 in breadth in engorged specimen. 
Gnathosome: as in liota n. sp. Scutum: elongate oval, more narrowed behind PL than anteriorly; setae 
submarginal. A-PP about twice A-P. PSB nearly four times ASB. Body Setae: Dorsal setae essentially 
Standard Measurements in Microns, G. gammonsi n. sp. 
AW PW PPW SB ASB PSB A-P A-PP PP AL PL DS - P - W - P — 
Cox II SD 
Holotype ... 33 51 22 35 21 82 39 77 23 25 29 25 51/46 51/103 
= 1.11 =0.5 
as scutal setae but slightly smaller in size; about 28 in number, anterior rows arranged 2. 6. 6. 6. Ventral 
setae about 52 in number of which approximately 20 arepost-anals ; anteriormost about 14 [4 in length, 
postanals 17-23(4. 
Type Material . — Holotype (only specimen extant) ex Anourosorex squamipes assamensis Anderson, a 
short- tailed shrew; India, Assam, 21 miles north of Ledo, 25.x. 1945 ( R . Traub and D. P. Millspaugh 
for U.S.A. Typhus Commission ). Deposited in U.S. National Museum (U.S.N.M. 2072). 
Comment. — The species is named for John G. Gammons of the Army Medical Service 
Graduate School, Washington, who has helped us on many occasions. 
Gahrliepia (Schongastiella) ligula (Radford, 1946) (figs. 61-68, p. 102). 
Schongastiella ligula Radford, 1946, Proc. zool. Soc. London , 116 , 256, figs. 17,18. 
Gahrliepia ( Schongastiella ) ligula , Worn., 1952, Rec. S. Aust. Mus ., 10 , 296-297, PI. 77, fig. B-F. 
Diagnosis. — Scutum ligulate, the scutum narrowing immediately behind PL to form a 
tongue-like extension; the pseudo-posterolateral setae close together (9-20^) and inserted only 
about 12!-*- from the apex: all palpal setae about 38-44 in number, in rows of 2-4~8-8, or 
2-6-8-2-8 ; ventral setae about 50 in number. 
The Standard Measurements of 25 Assam and Burma specimens of G. ligula are as follows : 
AW PW PPW SB ASB PSB A-P A-PP PP AL PL DS PW - 
Cox II SD 
Mean ... 39 52 14 34 22 58 39 71 9 35 38 35 52/59 52/80 
=0.8 =0.65 
Range 
(-i-or — ) ... 8 10 5 44 6454887 0.10 0.10 
Comments. — Our collections demonstrate that G. ligula is even more variable morphologi- 
cally than the wide range of measurements recorded by Womersley (1952) indicate. The 
great variations in setal pattern noted above, as well as of the standard data, frequently occur 
in a series from an individual host. This species is a prime example of how one can be misled 
by taxonomically studying inadequate series of trombiculids. If one were to study only the 
extremes of variation, two or three synonyms of ligula could very easily be created. Of particular 
interest in this regard is a group of specimens collected on the floor of a small man-made cave 
sheltering bats near Myitkyina and not included in the above measured series. These five 
specimens are peculiar in possessing about 80 ventral setae instead of 50, and the standard 
measurements are definitely greater, i.e., PW 62, PSB 68. The biological significance of these 
differences cannot be evaluated at the present time and hence no new name is proposed. 
G. ligula was collected during all times of the year on 120 occasions by the U.S.A. Typhus 
Commission in the Ledo Assam area and in the vicinity of Myitkyina, North Burma. 
STUD. INST. MED. RES. 
