238 PROCEEDINGS OF THE ACADEMY OF [June, 



to be a member of the genus Spongiphora. The pecuUar and dis- 

 tinctive character of the second tarsal joint in the present genus 

 clearly led Rehn to refer the species incorrectly to the Forficulidse, 

 but Burr's erection of a new genus for hogotensis is unwarranted 

 and would not have occurred had comparisons been made. 



The species has the general facies, head, proximal antennal joint, 

 tegmina, wings, tarsal joints and general character of proximal 

 dorsal abdominal segments, pygidium and forceps as typical for 

 Spongiphora. In this genus, the second tarsal joint is nearly as 

 long as the third and both are enlarged; the second is, however, 

 hardly broader than the third and, enlarging suddenly in the proximal 

 portion, does not form the heart-shaped lobe characteristic of the 

 Forficulidse. The roughness of the abdominal surface in hogotensis, 

 and particularly of the specialized ultimate dorsal segment, are 

 striking features of specific value. The tarsal joints are thickly 

 supplied with hairs ventrad, as in croceipennis, these hairs, however, 

 being coarser in the present species. 

 Microvostox basalis (Burr). 



1912. Spongovostox basalis Burr, Ann. k.-k. Naturhist. Hofmus. Wien, XXVI, 

 p. 337, fig. 16. ["El Zumbador" = El Tumbador, San Marcos, Guate- 

 mala.] 



Cacao, Trece Aguas, Alta Vera Paz, Guatemala, III, 27 to IV, 26, 1906, 

 (Barber and Schwarz), 3c?, 2 9 ," 5 juv.,MU. S. N. M.]. 



Burr's figure is excellent. Though the males of this species and 

 of M. hilineatus (Scudder) are extremely different, the females are 

 by no means easily separated. Those before us of basalis have the 

 pygidium with disto-lateral projections smaller and very slender, 

 the proximal dorso-internal brief shelf of the forceps as broad 

 proximad as distad, the metazona entirely translucent"^ and the 

 longitudinal pale bands at the tegminal shoulders and proximo- 

 external pale areas of the exposed portion of the wings yellowish. 

 In females of bilineatus the disto-lateral projections of the pygidium 

 are acute-angulate, but scarcely project caudad of the distal margin, 

 the proximal dorso-internal brief shelf of the forceps narrows proxi- 

 mad, the pronotum is only slightly paler narrowly laterad on the 

 metazona and the pale markings of the tegmina and wings are pale 

 buffy. 



* Recorded, in 1907, by Caudell as Spongophora pygmwa, and a pair of the same 

 series by Burr, in 19i0, as Spongophora ghilianii. 



^ Kecorded by Caudell, in 190/, as Sparatta flavipennula. 

 ^" This naturally more noticeable laterad. 



