311 
sal (the left) and the ventral (the right) surface and the narrow spaces 
the three rows of lateral protuberances. The spines on the upper and 
lower border of the segments are represented by dots. é 
TABLE. 
HYPODERMA LINEATA. HYPODERMA BOVIS. 
Last segment only, bearing anal spira- The two terminal segments entirely 
cles, entirely naked. naked. 
Dersal surface. Dorsal surface. 
Penultimate segment (10) spined as the Penultimate (10) and 9, together with 
preceding ones on posterior margin. lateral protuberances, naked. 
Ka 
2 
3 
4 
5 
6 
q 
g 
9 
| 2° 
MN 
Fic. 45.—HYpoDERMA LINEATA—diagram of spiny Fic. 46.-HyPoDERMA BOVIS—diagram of spiny 
armature (after Brauer). armature (after Brauer). 
Segments 2 and 3 and often 4 spinose | 2, 3, 4 and 5 spinose on both anterior and 
only anteriorly; 5, 6, 7 and 8 spinose | posterior margins; 6, 7, and 8 only on 
on both anterior and posteriormargins. | the posterior margin; 9, 10 and 11 
Segments 2-8 with the upper lateral pro- naked. 
tuberance spinose on the anterior mar- | 2, 3,4 and 5 upper and middle protuber- 
gin; 2 and 3 with the middle protuber- ances, and 2-8 of lower, spinose on an- 
ances on the anterior margin; 4,5, 6, | terior margin. 
on both anterior and posterior margins; | 
7, 8, 9 and 10 only on the posterior, and | 
2-10 of lower series spinose on both an- 
‘terior and posterior margins. 
Ventral surface. Ventral surface. 
Segments 2-9 spinose on both the ante- Segments 2-9 spinose on both anterior 
rior and posterior margins, especially and posterior margins, more copiously 
and in greater amount the latter, 10 on the posterior margin and on the an- 
only on posterior margin; 11 naked. terior margin of the 9th segment also. 
Stigmal plates fiat hardly excavated to- | Stigmal plates, convex, punctured and 
wards the pseudo-stigmatic orifice, or with radiating furrows, each deeply 
else with radiating furrows as in H. excavated, funnel-form, or auriform, 
diana. towards the pseudo-stigmal orifice. 
Body slender and more rugose; the es- | Body thick, rounded scarcely rugose; the 
caped larva grayish brown striped escaped larva deep brown. 
with whitish gray. 
