Table 2 in Redescription of Periplaneta arabica (Bey-Bienko, 1938) (Blattodea, Blattidae), with a comparative analysis of three species of Periplaneta Burmeister, 1838 (sensu stricto)

Table 2. Comparison of external morphological characters of males and females of three species of Periplaneta s.s. Dimensions are in mm: mean ± SEM (standard error of the mean). Abbreviations: Interocular space (IS); ocelli distance (OD); antennal sockets distance (ASD). SpeciesP. americanaP. arabicaP. lateralismalefemalemalefemalemalefemaleMeasured specimens (N)2315621713Body length include tegmen (mm)37.239 ± 0.596033.327 ± 0.351432.917 ± 0.8388-24.206 ± 0.2286-Body length31.539 ± 0.796630.113 ± 0.629826.025 ± 0.653724.500 ± 1.000019.806 ± 0.239720.715 ± 0.3665Distance comparison of IS, OD and ASDIS ≤ OD <ASDOD ≤ IS <ASDOD <IS ≤ ASDOD <ASD <ISOD <IS <ASDOD <IS ≤ ASDOcelli sizeMediumMediumMediumSmallLargeMediumPronotum shapeSubellipticalSubellipticalSubellipticalCampaniformSubellipticalCampaniformTegminaWell developedWell developedWell developedReduced and nearly squareWell developedReduced and nearly triangularHind wingsWell developedWell developedWell developedReduced and small lobedWell developedReduced and fused to metanotumLegsSlightly slenderSlightly slenderSlenderSlenderSlightly slenderSlightly slenderFront femoraType A2Type A2Type A2Type A2Type A2Type A2PulvilliPresentPresentAbsentAbsentPresentPresentAroliaMediumMediumAbsentAbsentMinuteMinuteFirst tergite of abdomenNo tergite gland-No tergite gland-No tergite gland-Supra-anal plate’s shapeHind margin extending outward and concave in the middle to forma sharp angleMiddle of hind margin deeply concave, forming one acute angleMiddle of hind margin concave and not extendingHind margin not extending outward and slightly concave in the middle to form an obtuse angleHind margin extending outward and slightly concave in the middle to form an actue angleMiddle of hind margin forming an obtuse angleSupra-anal plate’s sclerotization degreeThe distal part less sclerotized and hyalineLess sclerotized in the middleThe distal part less sclerotized and hyalineLess sclerotized in the middleThe distal part less sclerotized and hyalineLess sclerotized in the middleSubgenital plate’s shapeHind margin slightly convex-Hind margin slightly convex-Hind margin slightly convex-