. Occasional papers of the California Academy of Sciences. Figure 13. Adult female and penultimate male of newgenus and species of Oligotomidae from Thailand. Theprothorax of both sexes of this dark brown species is brightorange. Body length of female 18 Figure 14. Epigamic females may protmde their forebodiesfrom galleries, possibly emittmg pheromones to attractmales. £;)z/)/a«/rco!(/?Navas, (Embiidae). Mozambique. Mating When a male locates a gallery containing a re-ceptive female, he bites an opening (Fig. 15), enters,and approaches the female head-on, rapidly jerkinghis body and vibra


. Occasional papers of the California Academy of Sciences. Figure 13. Adult female and penultimate male of newgenus and species of Oligotomidae from Thailand. Theprothorax of both sexes of this dark brown species is brightorange. Body length of female 18 Figure 14. Epigamic females may protmde their forebodiesfrom galleries, possibly emittmg pheromones to attractmales. £;)z/)/a«/rco!(/?Navas, (Embiidae). Mozambique. Mating When a male locates a gallery containing a re-ceptive female, he bites an opening (Fig. 15), enters,and approaches the female head-on, rapidly jerkinghis body and vibrating his antennae. If the female isunreceptive, her reaction, perhaps varying accordingto species, may be antagonistic and dangerous. Insome encounters a female may attempt to eat, or atleast bite an approaching male. She lunges towardthe male with the same motions used in defendingeggs, or young brood. Often there is antagonism orfighting between males. When a female is receptive, there is mutual quiv-ering of the antennae, head and prothorax and, alter-nately, forward darting and retreat. Inasmuch as theremay remain a threat to the male, males of many spe-cies reduce danger by grasping the fore portion ofthe females head with the mandibles. Mandib


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Keywords: ., bookcentury1800, bookdecade1890, booksubjectscience, bookyear1890