Research Article

Morphology and Developmental Rate of the Blow Fly, Hemipyrellia ligurriens (Diptera: Calliphoridae): Forensic Entomology Applications

Table 2

Comparison of distinctive features of the 1st, 2nd, and 3rd instar larvae of Hemipyrellia ligurriens.

Character1st instar2nd instar3rd instar

Cephalopharyngeal skeletal:
 accessory sclerite of cephalopharyngeal skeletalAbsentAbsentPresent
Posterior spiracle:
 button of posterior spiracleAbsentAbsentPresent
 peritreme of posterior spiracleVery weakly pigmented; incomplete peritremeWeakly pigmented; incomplete peritreme without an interslit projectionHighly pigmented; complete peritreme with an interslit projection
 Number of spiracular slit2 slits merging ventrally2 separated slits3 separated slits