A review of studies on the fire millipede genus centrobolus (diplopoda: trigoniulidae)

Abstract

Studies on Centrobolus spp. were reviewed in which mechanisms of selection, sperm competition and cryptic female choice were studied. Approaches (1) quantify size dimorphism and find the selection pressures operating on the sexes, (2) determine the functional significance of male and female genitalia, (3) understand why there should be a conflict of sexual interests in prolonged copulations, and (4) resolve the mechanisms of sperm competition and cryptic female choice in comparing male mating strategies to female sperm usage were included.

Centrobolus dubius (Schubart, 1966) Monomorphism

“…Previous studies on SSD in invertebrates and these results consistently give a positive correlation and break the rule [5,[21][22][23][24][25]26] . Figure 1 shows the finding for Centrobolus dubius where the regression of log male volume on log female volume was highly significant with a positive slope of 1.…”

Centrobolus anulatus (Attems, 1934) reversed sexual size dimorphism

“…Previous studies on SSD in invertebrates and these results consistently give a positive correlation and break the rule [5,10,[12][13][14][15][16][17][18][19]36] . Figure 1 shows the finding for Centrobolus anulatus where the regression of log male volume on log female volume was highly significant with a positive slope of 0.86207; showing females get larger than males with an increase in body size [2][3][7][8] .…”