Figure 4 from: Cifuentes-Ruiz P, Zaragoza-Caballero S, Ochoterena-Booth H, Morón Rios M (2014) A preliminary phylogenetic analysis of the New World Helopini (Coleoptera, Tenebrionidae, Tenebrioninae) indicates the need for profound rearrangements of the classification. ZooKeys 415: 191-216. https://doi.org/10.3897/zookeys.415.6882

Figure 4 - Internal morphological characters (female genitalia) representing the different morphological types found in our sample of Helopini ag = accessory gland, sp = spermatheca, st = spermathecal tube(s), cd = common duct of accessory gland and spermatheca, v = vagina, ov = oviduct: A infundibular vagina (40:0), single spermatheca branched near its base (41:0, 42:0) and accessory gland in the common duct (49:1) illustrated from Helops insignis Germar representing the helopiod type (Nabozhenko 2001b, 2002a, 2002b, 2005) B vagina strongly curved and narrowed before the apex (40:1), single spermatheca not branched near the base (41:0, 42:1) illustrated from Nalassus plebejus Küster representing the nalassoid type (Nabozhenko 2001b, 2002a, 2002b) C female genital tract with three serial spermathecal tubes (41:1) close to each other (43:0) and terminal accessory gland (49:2) in Helops farctus LeConte, illustrating the pattern previously reported for some Pimeliinae species (Doyen 1994), here reported for the first time in Tenebrioninae D distant spermathecal tubes (43:1) in Helops perforatus Horn with terminal accessory gland (49:2), illustrating a pattern described here for the first time. Total length of the accessory gland is not represented in A and B.