HAPLOGLOSSA. 623 



Subfam. PTILODACTYLINJE. 

 Group HAPLOGLOSSINI. 



HAPLOGLOSSA. 



Aploglossa, Guerin, Spec, et Icon, des Anim. Art. livr. viii. no. 33, p. 1, tab. (1849) ; Lacordaire, 



GeD. Col. iv. p. 278 (nee Kraatz). 

 Haploglossa, Gemminger & Harold, Cat. vi. p. 1623. 



The characters of this Tropical- American genus are given at considerable length by 

 Guerin, but he did not notice the peculiar form of the mandibles, and nothing is said 

 about the sterna. The following is supplemental to his description: — Mandibles 

 armed on the inner side at the middle with two long, curved, slender hooks or teeth, 

 and with a short tooth above and beneath before the apex ; prosternum rather short 

 and horizontal before the anterior coxae, and produced between them into a very narrow 

 lamella, which is received by a fine notch in the mesosternum, the prosternal process 

 not raised ; anterior coxae subconical, strongly exserted, and with a moderately large 

 trochantin ; middle coxae very narrowly separated, with a small trochantin ; posterior 

 coxae narrowly separated, the coxal plates abruptly dilated inwards, but leaving the 

 trochanters exposed, becoming exceedingly narrow outwards ; prothorax margined at 

 the sides behind. 



The difference in the form of the fifth ventral segment is sexual, and not specific, 

 as supposed by Guerin. 



These insects are found upon bushes in damp places in the forest. One of them is 

 very variable in colour, especially in the female sex. 



Prothorax shining, rather sparsely punctured on the disc, subarigularly dilated at the 



sides towards the base sall<si. 



Prothorax feebly shining, densely punctured throughout, abruptly and acutely dilated 

 at the sides towards the base. 

 Body moderately broad ; fifth ventral segment deeply emarginate in the male . . collaris. 

 Body narrow; fifth ventral segment feebly emarginate in the male angustata. 



l. Haploglossa sallaei 



$ . Aploglossa sallei, Guer. Spec, et Icon, des Anim. Art. livr. viii. no. 33, p. 2, tab. figg. 1-7 '. 

 ? . Aploglossa marginata, Guer. loc. cit. p. 2 2 . 



Bab. Mexico, Ventanas in Durango (Edge), Juquila and Panistlahuaca in Oaxaca 

 (Salle). — Venezuela, Caracas x 2 . 



The seven specimens from Mexico before me — one from Durango and six from 

 Oaxaca, including both sexes — agree very nearly with Guerin's descriptions, which are 

 taken from male and female respectively, E. marginata being based upon a varietal 



